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Daicel Corporation patents


Recent patent applications related to Daicel Corporation. Daicel Corporation is listed as an Agent/Assignee. Note: Daicel Corporation may have other listings under different names/spellings. We're not affiliated with Daicel Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Daicel Corporation-related inventors


Curable composition and cured product from same

. . . . . . . . Provided is a curable composition which has excellent curability, less causes silicone molds to swell, and allows the silicone molds to have better durability and a longer service life in repeated use. The curable composition according to the present invention is a curable composition for production of an optical component by molding using silicone molds. ... Daicel Corporation

Disintegrating particle composition produced by two-stage wet granulation process, and intraorally disintegrating tablet containing same composition

A method is used in the production of a disintegrative particulate composition including three components consisting of a first disintegrator component having sedimentation volume in water of 4.0 cm3/g or more, and a second disintegrator component other than the first disintegrator component and an excipient. The method includes a first wet granulation step using any two of the three components, and a second wet granulation step using the granules obtained in the first wet granulation step and at least the component not used in the first wet granulation step; thus the disintegrative particulate composition is produced. ... Daicel Corporation

Method and apparatus for producing acetic acid

. . . . . . A process for stably and safely producing acetic acid without increasing an internal pressure of a distillation column is provided. The process comprises (1) a carbonylation reaction step for allowing methanol to react with carbon monoxide; (2) a flash step for separating the reaction mixture into a volatile phase and a less-volatile phase; (3) a first distillation step for separating the volatile phase into a first overhead and a crude acetic acid stream rich in acetic acid; and (4) a separation step for separating at least acetaldehyde from the first overhead. ... Daicel Corporation

Closing structure for opening of cylindrical housing and gas generator

The present invention provides a closing structure which closes, with an igniter, an opening of a cylindrical housing used in a gas generator, the cylindrical housing provided with a stepped surface formed on an inner side of a circumferential wall on the side of the opening, and a distal end circumferential wall extending from the stepped surface to the opening, the igniter having an igniter main body, and an igniter collar surrounding part of the igniter main body and having an annular plate portion with a maximum outer diameter and a circumferential wall excluding the annular plate portion, the annular plate portion including, a first annular surface facing the ignition portion of the igniter main body, a second annular surface facing the electroconductive pin of the igniter main body, and an annular circumferential surface between the first annular surface and the second annular surface, a first annular circumferential edge at the boundary between the first annular surface and the annular circumferential surface, and a second annular circumferential edge at the boundary between the second annular surface and the annular circumferential surface, and the second annular circumferential edge provided with an inclined surface in three or more locations, and the first annular surface of the igniter collar being abutted against the stepped surface of the cylindrical housing, and the annular circumferential surface and the second annular circumferential edge of the igniter collar being abutted against the distal end circumferential wall.. . ... Daicel Corporation

Curable composition and cured product from same

. . Provided is a curable composition which has chargeability into silicone molds and curability at excellent levels, less causes the silicone molds to swell, and allows the silicone molds to have better durability and a longer service life in repeated use. The curable composition according to the present invention contains curable compounds and a cationic initiator and is used for production of an optical component by molding using silicone molds. ... Daicel Corporation

Gas generator

The present invention provides a gas generator including a metallic first collar of a first igniter of an ignition device chamber, which has a first columnar main body portion, a first plate portion extending in a radial direction of a housing from part of a circumferential surface thereof, and a first wall surface formed by extending part of the first plate portion in an axial direction of the housing, a metallic second collar of a second ignition device of a second combustion chamber, which has a second columnar main body portion, a second plate portion extending in the radial direction from part of a circumferential surface thereof and a second wall surface formed by extending part of the second plate portion in the axial direction of the housing, a bottom side of the first columnar main body portion portion of the first collar being fitted in a first hole to fix a first igniter of the ignition device chamber, the first hole being one of two holes formed in the bottom plate of the housing separately from each other in the radial direction, a bottom side of the second columnar main body portion portion of the second collar being fitted in a second hole to fix a second igniter of the second combustion chamber, the second hole being the other one of the two holes formed in the bottom plate separately from each other in the radial direction, further, the first wall surface of the first collar and the second wall surface of the second collar being arranged to face each other in the radial direction, when a pressure inside the housing rises at a time of actuation, the first wall surface and the second wall surface being in contact with each other in a state of being pushed radially inward against each other.. . ... Daicel Corporation

Method for producing acetic acid

. . It is intended to provide a method capable of suppressing distillation apparatus corrosion as a method for producing acetic acid, comprising the step of distilling a crude acetic acid solution containing acetic acid and an impurity having a higher boiling point than that of acetic acid to purify the acetic acid. The method for producing acetic acid of the present invention comprises the step described above, wherein the distillation of the crude acetic acid solution is performed under a condition involving a distillation column bottom temperature of not more than 165° c. ... Daicel Corporation

Method for producing acetic acid

It is intended to provide a method capable of lowering a formic acid concentration in product acetic acid by a simple approach. The method for producing acetic acid according to the present invention comprises at least one step selected from a step that satisfies the following operating conditions (i) and a step that satisfies the following operating conditions (ii) in an acetic acid production process: (i) operating conditions involving a hydrogen partial pressure of less than 500 kpa (absolute pressure), a carbon dioxide partial pressure of less than 70 kpa (absolute pressure), and an operating temperature of more than 175° c.; and (ii) operating conditions involving a hydrogen partial pressure of not more than 5 kpa (absolute pressure), a carbon dioxide partial pressure of less than 20 kpa (absolute pressure), and an operating temperature of more than 100° c.. ... Daicel Corporation

Method for producing acetic acid

It is intended to provide an acetic acid production method capable of industrially advantageously separating and removing a by-product acetaldehyde in the separation step of separating a process stream into aqueous and organic phases. In the present invention, the separation step satisfies, for example, the following conditions (vi) to (viii), and at least a portion of the aqueous phase is treated in the acetaldehyde separation and removal step: (vi) acetaldehyde concentrations in the aqueous and/or organic phases are not more than 28.1 mass % and not more than 24.8 mass %, respectively; (vii) a separation temperature is not more than 70° c.; and (viii) methyl acetate concentrations in the aqueous and/or organic phases are not more than 12.0 mass % and not more than 47.6 mass %, respectively, and/or the sum of the methyl acetate concentrations in the aqueous and organic phases is not more than 59.6 mass %.. ... Daicel Corporation

Optical component and optical device equipped with same

. . Provided is a fine and highly heat-resistant optical component having a coating layer on part thereof. The optical component according to the present invention includes a cured product of a curable composition of an epoxy compound (a); and at least one coating layer having a thickness of 0.1 mm or less on part of the cured product. ... Daicel Corporation

Heat-transport medium including latent heat storage material, mixture for heat transport, and heat transport method

Used as a heat transport medium to be transported with a fluid that is liquid in an operating temperature range is a medium in which a latent heat storage material is penetrated in a porous material, wherein the latent heat storage material is incompatible with the fluid and has a melting point within the operating temperature range, and the porous material has a liquid repellency to the fluid, an affinity for the latent heat storage material, and a sponge hardness of not more than 50. This achieves stable heat transport with a high heat conversion efficiency even by circulating the medium through a pipeline over a long period of time. ... Daicel Corporation

Needleless syringe

The described technology relates to a needleless syringe for injecting an injection objective substance into an injection target area. The needleless syringe includes a protruding member which is provided movably from a first position to a second position at which 1) a protruding length of a forward end of the protruding member from an end surface of a housing is shorter than a protruding length of the forward end at the first position and 2) the forward end and a discharge port can be brought in contact with the injection target area. ... Daicel Corporation

Needleless syringe and method for introducing dna into injection target area using same

. . . . . . A needleless injector which can selectively induce the immune response and a method for introducing dna including a region coding for an antigen to selectively produce an antibody in a living body of a mammal by using the needleless injector are provided. Disclosed is a needleless injector for injecting a dna solution into an injection target area without using any injection needle. ... Daicel Corporation

Method for producing silver nanoparticles, silver nanoparticles, and silver coating composition

The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a producing method for same, and a silver coating composition comprising the silver nano-particles. A method for producing silver nano-particles comprising: preparing an amine mixture liquid comprising: an aliphatic hydrocarbon monoamine (a) comprising an aliphatic hydrocarbon group and one amino group, said aliphatic hydrocarbon group having 6 or more carbon atoms in total; an aliphatic hydrocarbon monoamine (b) comprising an aliphatic hydrocarbon group and one amino group, said aliphatic hydrocarbon group having 5 or less carbon atoms in total; and an aliphatic hydrocarbon diamine (c) comprising an aliphatic hydrocarbon group and two amino groups, said aliphatic hydrocarbon group having 8 or less carbon atoms in total; mixing a silver compound and the amine mixture liquid to forma complex compound comprising the silver compound and the amines; and thermally decomposing the complex compound by heating to form silver nano-particles.. ... Daicel Corporation

06/14/18 / #20180163049

Curable composition

Provided is a curable composition having excellent film-formability and can be cured at low temperatures to form a cured product that has heat resistance, cracking resistance, and adhesiveness and adhesion to an adherend at excellent levels. The curable composition according to the present invention is a composition containing polyorganosilsesquioxanes (a). ... Daicel Corporation

05/31/18 / #20180148392

Separating agent for optical isomers

. . Provided is a separating agent for optical isomers, which is configured of a novel xylan derivative and a carrier. Specifically provided is a separating agent for optical isomers, which is configured of a carrier and a xylan-phenylcarbamate derivative that is obtained by substituting a hydroxy group of xylan with a group represented by formula (i) or (ii). ... Daicel Corporation

05/24/18 / #20180142128

Curable composition, and moulded body

Provided is a curable composition which can form, when cured, a cured product having high surface hardness and offering excellent flexibility and workability. The curable composition according to the present invention contains a cationically curable silicone resin, an epoxy compound other than the cationically curable silicone resin, and a leveling agent. ... Daicel Corporation

05/03/18 / #20180118649

Method for producing acetic acid

. . . . . . . . Provided is a method for producing acetic acid, which suppresses catalyst precipitation and accumulation in an evaporator, can efficiently recycle catalysts to a reaction vessel, and can contribute to maintenance and improvement in acetic acid productivity and securing of safety operation. In the method, the evaporator has a catalyst precipitation and accumulation prevention structure: (a) structure where inclination angle θ of inside wall surface of an inverted truncated conical cylindrical connection portion is 5° to 85°; and/or (b) structure where a vortex breaker comprising a plate-like vortex breaker main body and a leg is disposed such that the vortex breaker main body covers right above the connection portion of an evaporator bottom part to a residual liquid stream recycle line, and linear velocity r of the residual liquid stream passing through a gap between the vortex breaker main body and the evaporator bottom part is larger than 10 m/h.. ... Daicel Corporation

04/05/18 / #20180094098

Curable composition for lens, lens and optical device

Provided is a curable composition capable of giving a lens that has excellent transfer accuracy from a mold and offers heat resistance and optical properties at excellent levels. The curable composition according to the present invention for lens formation contains a cycloaliphatic epoxide (a) represented by formula (a), a cationic-polymerization initiator (b), and a polysiloxane (c) represented by formula (c). ... Daicel Corporation

03/29/18 / #20180085734

Separating agent for optical isomers

Provided is a separating agent for optical isomers, which is excellent in solvent resistance and has optical separating ability comparable to or higher than that of existing separating agents for optical isomers of chemical bonding type or physical adsorption type. In the separating agent for optical isomers, amylose (3-chloro-5-methylphenylcarbamate) is supported on a carrier through chemical bonding.. ... Daicel Corporation

03/08/18 / #20180066148

Silver particle coating composition

The present invention provides a silver coating composition that develops excellent conductivity (low resistance value) by low-temperature and short-time calcining and that has excellent printability. A silver particle coating composition comprising: silver nano-particles whose surfaces are coated with a protective agent comprising an aliphatic hydrocarbon amine; and a dispersion solvent, wherein the dispersion solvent comprises a solvent selected from the group consisting of a glycol ether-based solvent and a glycol ester-based solvent. ... Daicel Corporation

03/01/18 / #20180056270

Amylose derivative and optical isomer separating agent containing same

Provided are a novel amylose derivative which exhibits excellent optical isomer separability and which is suitable as an optical isomer separating agent; and an optical isomer separating agent containing the amylose derivative. A task is attained by an amylose derivative having a constituent unit represented by formula (i) below; in below formula (i), r1 is a substituent group represented by any of formulae 1 to 3 below, and r2 is a substituent group represented by any of formulae a to g below. ... Daicel Corporation

03/01/18 / #20180056003

Syringe

It is possible to feed an injection objective substance to a depth of a skin structure of an objective living body without using any injection needle. A syringe having no injection needle comprises an enclosing unit which encloses the injection objective substance, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit, and a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to an injection target area. ... Daicel Corporation

02/22/18 / #20180050973

Vinyl-group-containing fluorene compound

A novel vinyl-group-containing fluorene compound and a method for producing the same, a polymerizable monomer and cross-linking agent including the compound, a leaving-group-containing fluorene compound, a monovinyl-group-containing fluorene compound, and methods for producing the same. The vinyl-group-containing fluorene compound is represented by formula (1) in which w1 and w2 represent a group represented by formula (2), a group represented by formula (4), a hydroxyl group, or a (meth)acryloyloxy group, r3a and r3b represent a cyano group, a halogen atom, or a monovalent hydrocarbon, and n1 and n2 are integers of 0-4. ... Daicel Corporation

02/22/18 / #20180050282

Stationary phase for supercritical fluid chromatography

Provided is a stationary phase for supercritical fluid chromatography, the stationary phase having satisfactory molecule-identifying ability, in particular, satisfactory separating properties with respect to not only acidic compounds or basic compounds but also fused aromatic compounds or aromatic isomers. The stationary phase for supercritical fluid chromatography includes a support having, bonded thereto, a polymer in which the main chain has nitrogenous aromatic rings in the repeating units.. ... Daicel Corporation

02/15/18 / #20180043854

Gas generator

The present invention provides a gas generator including, in a cylindrical housing, a gas generation chamber accommodating a gas generating agent and an ignition device, the ignition device being disposed at a first end surface of the cylindrical housing, and a second end surface, which is axially opposite to the first end surface, being closed by a closing member, the closing member having a fragile portion formed such that a part thereof is ruptured when the first surface on the side of the gas generation chamber receives a pressure of a gas including a combustion gas, and the ruptured portion is bent and opened to the axially opposite side of the first surface, a gas discharge port for the combustion gas being formed by the ruptured portion which is bent and opened from a surface of a non-ruptured portion after the part of the closing member is ruptured along the fragile portion, a control device restricting an angle between the second surface of the closing member and the bent ruptured portion to be 5 degrees to 85 degrees, the control device being a member which is adjusted to have such a distance that the bent ruptured portion is in contact therewith, or a support portion which is formed to protrude from the second surface of the closing member at a position such as to be in contact with the ruptured portion.. . ... Daicel Corporation

02/15/18 / #20180043333

Method for producing porous cellulose medium

Provided are a technique for preparing a porous cellulose medium without using a special gelling agent for a solution in which cellulose acetate serving as a raw material is dissolved; and a porous cellulose medium and the like produced using the technique. A method for producing a porous cellulose medium comprises the step of preparing a flowable homogeneous composition comprising cellulose acetate, a basic compound, and a solvent including water, and gelling the composition by deacetylation reaction of the cellulose acetate.. ... Daicel Corporation

02/08/18 / #20180037755

Transparent laminate film

A coat layer and a substrate layer are combined to prepare a transparent laminate film; the coat layer contains particles having a particle size distribution with a plurality of peaks in a particle size region of not less than 6 μm, and of particle sizes corresponding to the plurality of peaks, the smallest particle size is larger than an average thickness of a flat portion of the coat layer. The transparent laminate film provides a comfortable writing experience and an excellent anti-glareness. ... Daicel Corporation

02/08/18 / #20180037670

Cellulose acetate powder and method of producing cellulose acetate powder

Provided is a cellulose acetate powder that makes it possible to reduce the formation of spotty patches on a formed article of the cellulose acetate and prevent lowering of the production process passability of the formed article. A cellulose acetate powder includes cellulose acetate having an acetylation degree of 53 to 56% and a 6% viscosity of 30 to 200 mpa·s. ... Daicel Corporation

02/08/18 / #20180036486

Syringe

A syringe has a syringe main body, a syringe unit, and a piston. An end surface of the piston disposed on a forward end side is brought in contact with an end surface of a plunger disposed on a proximal end side so that the plunger is slidable toward a discharge port in a state in which a rod portion is accommodated in an accommodating hole in an attached state. ... Daicel Corporation

02/08/18 / #20180036485

Syringe

It is possible to feed an injection objective substance to a depth of a skin structure of an objective living body without using any injection needle. A syringe having no injection needle comprises an enclosing unit which encloses the injection objective substance, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit, and a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to an injection target area. ... Daicel Corporation

02/01/18 / #20180030229

Transparent laminate film

A coat layer and a substrate layer are combined to prepare a transparent laminate film; the coat layer has a surface with a maximum height of rolling circle waviness profile (wem) in accordance with jis b0610 of 5 to 15 μm and an arithmetic average roughness (ra) of not less than 0.5 μm. The transparent laminate film provides a comfortable writing experience and a reduced abrasion of a pen tip. ... Daicel Corporation

01/11/18 / #20180009732

Process for producing acetic acid

A process for separating or removing permanganate reducing compounds (prc's) from a first mixture containing at least one prc, methyl iodide, and water comprises the steps of: feeding the first mixture to a feed port of a distillation column, and distilling and separating the first mixture into an upper stream and a lower stream, wherein the distillation of the first mixture forms a second mixture at an upper position than the feed port, and the process further comprises the steps of: withdrawing the second mixture as the upper stream, and withdrawing the lower stream from a lower position than the feed port.. . ... Daicel Corporation

12/07/17 / #20170350679

Igniter

An igniter includes a first ignition charge, a first member which has a predetermined inner surface and a second member. The second member is arranged in a state of being inserted into the first member and which has a predetermined outer surface opposed to the predetermined inner surface in an arrangement state, for forming a predetermined space to arrange the first ignition charge between the predetermined inner surface and the predetermined outer surface. ... Daicel Corporation

12/07/17 / #20170349779

Anti-wear agent

Provided is an anti-wear agent capable of furnishing an epoxy resin coating film with anti-wear properties. The anti-wear agent is characterized in containing an alicyclic difunctional epoxy and a polymerization initiator or is characterized in containing a difunctional bisphenol a-type epoxy resin, a leveling agent and a polymerization initiator.. ... Daicel Corporation

12/07/17 / #20170349521

Method for producing acetic acid

A method produces acetic acid and includes a reaction step, a first purification step, a second purification step, and a third purification step. In the reaction step, a material mixture including methanol, carbon monoxide, a catalyst, and an iodide is subjected to a methanol carbonylation reaction in a reactor (1) to form acetic acid. ... Daicel Corporation

12/07/17 / #20170349136

Gas generator

The present invention provides a gas generator including a cylindrical housing in which an ignition device is attached at a first end portion thereof and a diffuser portion provided with a gas discharge port is attached at a second end portion thereof, an annular end surface being formed on the side of the second end portion, a cylindrical flow path forming member being disposed in the cylindrical housing, an inner space of the cylindrical flow path forming member being partitioned by a partition wall into a first chamber on the side of the first end portion and a second chamber on the side of the second end portion, a space, which includes the first chamber, being a combustion chamber filled with a gas generating agent, and the second chamber forming part of a gas discharge path, in the cylindrical flow path forming member, a first cylindrical space, which is formed between a first wall surface of the cylindrical flow path forming member on the side of the first chamber and the inner wall surface of the cylindrical housing, and a second cylindrical space, which is formed between a second wall surface of the cylindrical flow path forming member on the side of the second chamber and the inner wall surface of the cylindrical housing, being continuous in an axial direction, and the second cylindrical space being a cylindrical space with a length l from a boundary with the first cylindrical space to the annular end surface, and having an annular pocket portion with a length l1 from the annular end surface to the second communication holes, and at least part of a surface of the annular pocket portion being provided with a concave-convex portion.. . ... Daicel Corporation

11/30/17 / #20170343021

Pyrotechnic actuator mechanism, syringe and igniter assembly

. . . . A pyrotechnic actuator mechanism comprises a cover member which includes a first wall member which is opposed to a release portion of an ignition unit, and a second wall member which is connected thereto and which has a free end portion embedded in a fixing member. When an ignition charge contained in the ignition unit is combusted, then the cover member is moved in the propulsion direction so that a predetermined closed space is expanded in the propulsion direction of a piston, and the movement of the cover member is regulated so that a state, in which the free end portion of the second wall member is embedded in the fixing member, is maintained at a maximum propulsion position of the cover member. ... Daicel Corporation

11/30/17 / #20170340822

Needleless injection apparatus

A needleless injection apparatus is provided which forms a suitable contact state between an injection opening and an injection object. The needleless injection apparatus is provided with an expansible bag body, a needleless syringe including no injection needle, and a gas supply unit for supplying the expansion gas to the bag body. ... Daicel Corporation

10/26/17 / #20170306172

Silver particle coating composition

. . . . The present invention provides a silver coating composition that develops excellent conductivity (low resistance value) by low-temperature and short-time calcining, and that is excellent in fine-line drawing performance and suitable for intaglio offset printing. A silver particle coating composition comprising: silver nano-particles (n) whose surfaces are coated with a protective agent containing an aliphatic hydrocarbon amine; a surface energy modifier; and a dispersion solvent. ... Daicel Corporation

10/26/17 / #20170304544

Needleless syringe

A needleless syringe comprises a main syringe body which is a main body thereof and which has, in the main body, a sliding movement passage connected to an opening provided on a front end surface of the main body; a holding unit which has an accommodating unit for accommodating an injection objective substance so that the injection objective substance is releasable; and a driver that is configured to apply energy to the holding unit in order to allow the holding unit to slide toward the opening. When the energy is applied by the driver to the holding unit disposed at the initial position, the holding unit slides in the sliding movement passage to abut against the opening at the abutment position, and thus the injection objective substance accommodated in the accommodating unit is discharged via the opening. ... Daicel Corporation

10/05/17 / #20170283560

Hyperbranched polymer, process for producing same, and composition

. . . . Provided is a hyperbranched polymer having such a backbone that is readily decomposable by an acid. The hyperbranched polymer is derived from, via reaction, monomers including a monomer (x) and a monomer (y). ... Daicel Corporation

10/05/17 / #20170282844

Gas generator

The present invention provides a gas generator including, an ignition device chamber, a gas inflow chamber, and a pressurized gas chamber being arranged from a first end fixed with an ignition device to a second end opposite thereto in a cylindrical housing, an inner circumferential wall surface of the cylindrical housing, from the ignition device chamber to the gas inflow chamber, having a first movement restricting portion, a second movement restricting portion and a stopping portion which are arranged in an axial direction at intervals in the above order so as to protrude, the second movement restricting portion having an ignition device chamber-side surface which is an inclined surface decreasing an inner diameter of the housing from the side of the ignition device chamber to the side of the gas inflow chamber and a gas inflow chamber-side surface whose angle (α1) with respect to the cylindrical housing is not more than 90 degrees, so that an axial cross-sectional shape of the second movement restricting portion is a triangle, a breaking device being arranged between the ignition device chamber and the gas inflow chamber and including a base whose outer circumferential surface abuts against an inner circumferential wall surface of the cylindrical housing and a distal end having an enlarged-diameter portion, and before actuation, the base being held between the first movement restricting portion and the second movement restricting portion, after actuation, the base being held between the surface of the second movement restricting portion whose angle al is not more than 90 degrees and the stopping portion.. . ... Daicel Corporation

10/05/17 / #20170282172

Oxidation reactor and process for producing oxide

Provided is an oxidation reactor capable of oxidizing hydrocarbons with both reaction efficiency and energy efficiency. The oxidation reactor according to the present invention includes a liquid inlet channel, a gas inlet channel, a gas-liquid mixing unit, and a flow reactor. ... Daicel Corporation

09/21/17 / #20170271041

Composition for forming coat-type insulating film

Provided is an insulating coating composition. The composition is highly safe, in which an organic material to form an insulating film is dissolved highly stably. ... Daicel Corporation

09/21/17 / #20170265519

Cellulose acetate fiber tow band for use in cigarette filter, cigarette filter, apparatus for manufacturing tow band, and method of manufacturing tow band

A tow band (tb) for use in a cigarette filter is a tow band in which a plurality of filaments (f) made of cellulose acetate fibers are bundled together and crimped. In the tow band, a filament denier is not less than 6.0 and not more than 11.0, a total denier is not less than 5,000 and not more than 15,000, and a cv value of the number of crimps of the tow band is not more than 4%.. ... Daicel Corporation

09/14/17 / #20170260323

Curable composition and optical element obtained using same

Provided is a curable composition which has excellent thin-film curability and which can form, via the application of light and/or heat, a cured product having heat resistance and thermal yellowing resistance at excellent levels. This curable composition contains cationically curable compounds and a cationic-polymerization initiator. ... Daicel Corporation

09/14/17 / #20170260120

Method for producing acetic acid

A method for producing acetic acid includes subjecting an acetic acid solution to an acetic anhydride decreasing treatment. The acetic acid solution is present typically in, or downstream from, a distillation column (5) of acetic acid production equipment (x), includes acetic acid in a concentration of 90 mass percent or more, acetic anhydride, and water, and is in such a state that an equilibrium concentration of acetic anhydride is higher than an acetic anhydride concentration. ... Daicel Corporation

09/07/17 / #20170253575

Solid acid catalyst and method for producing oxide

Provided is a solid acid catalyst for use in oxidation of a substrate in the coexistence of oxygen and ozone (solid acid catalyst for oxygen-ozone-coexisting oxidation). The solid acid catalyst enables oxidation of the substrate with a high conversion. ... Daicel Corporation

09/07/17 / #20170252717

Oxidation reactor and production method for oxide

Provided is an oxidation reactor capable of oxidizing hydrocarbons with both good reaction efficiency and good energy efficiency. This oxidation reactor includes a liquid inlet channel, a gas inlet channel, a gas-liquid mixing unit, and a flow reactor. ... Daicel Corporation

08/24/17 / #20170240429

Nanodiamonds having acid functional group and method for producing same

A nanodiamond according to the present invention has acidic functional groups, contains the acidic functional groups in a number density of 1 or more per square nanometer in the nanodiamond surface, and has a specific surface area of 150 m2/g or more. Particles of the nanodiamond preferably have a d50 (median diameter) of 9 nm or less. ... Daicel Corporation

08/17/17 / #20170232695

Specially-shaped epoxy resin molded article, and optical device provided with same

Provided is a molded article that has such a shape as to offer a light condensing or light diffusing effect, has excellent mechanical strengths and heat resistance, and has a high thickness deviation ratio. This molded article includes a cured product of a curable composition containing an epoxy compound (a). ... Daicel Corporation

08/10/17 / #20170227190

Fresnel lens and optical device provided with same

Provided is a fresnel lens which has excellent heat resistance and which can covert light even from a poor-quality semiconductor light sources into uniform, high-quality light and can disperse the resulting light without lowering the central illuminance. The fresnel lens according to the present invention includes two or more sawtooth prisms in a surface thereof and is made of a cured product of a curable composition containing an epoxy compound (a). ... Daicel Corporation

07/27/17 / #20170210871

Method for producing porous cellulose medium

. . The present invention provides a technique for preparing a porous cellulose medium, through the gelation of a solution in which cellulose acetate as a raw material is dissolved, which does not cause a reaction involving the migration of substances. Specifically, a method for producing a porous cellulose medium is provided which includes the steps of gelling a flowable homogeneous composition containing cellulose acetate, an organic solvent, and water through a decrease in temperature; and hydrolyzing the cellulose acetate contained in the resulting gel.. ... Daicel Corporation

07/06/17 / #20170190815

Formed article

. . Provided is a film, sheet, plate, or other such formed article having excellent transparency made of a copolymer obtained from a cyclic olefin monomer and an α-olefin monomer. The present invention provides a formed article made from a copolymer having tg of 170° c. ... Daicel Corporation

06/15/17 / #20170166160

Gas generator

The present invention provides a gas generator including a combustion chamber cup which is disposed in the housing provided with a gas discharge port and includes a combination of a cup member and a cylindrical member, a combustion chamber being separated by the combustion chamber cup into an inner combustion chamber and an outer combustion chamber, the cup member having, in a circumferential wall surface thereof, a dropout-preventing slit formed in an axial direction from a first end on the side of a bottom surface to a second end on the side of an opening and a plurality of through holes formed in a circumferential direction, the cylindrical member having a first end opening fixed to a bottom plate of the housing and a protrusion protruding radially outward in a circumferential wall surface thereof, the cup member covering a second end opening of the cylindrical member, and the bottom surface of the cup member being positioned on the side of a top plate of the housing, the plurality of the through holes being closed when the protrusion of the cylindrical member is fitted at the first end of the dropout-preventing slit, at the time of actuation, the plurality of the through holes of the cup member being opened when the cup member moves until the protrusion, which has located at the first end of the dropout-preventing slit, abuts against the second end.. . ... Daicel Corporation

06/08/17 / #20170158814

Monomer composition and curable composition containing same

Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a multifunctional vinyl ether compound in an amount of 10 to 80 weight percent, a bifunctional oxetane compound represented by formula (b) in an amount of 0.5 to 20 weight percent, and a monofunctional oxetane compound represented by formula (b′) in an amount of 5 to 80 weight percent. ... Daicel Corporation

06/08/17 / #20170158812

Monomer composition and curable composition containing same

Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (a). ... Daicel Corporation

06/01/17 / #20170152346

Monomer composition and curable composition containing same

. . Provided is a monomer composition that has rapid curability and can be rapidly cured, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes at least one cationically curable monomer. ... Daicel Corporation

05/18/17 / #20170141423

Resin film, laminate, method for producing same, and method for producing fuel cell

A polymer film comprises a polymer composition containing (a) a cyclic olefin polymer and (b) a chlorine-containing polymer. The chlorine-containing polymer (b) may comprise a vinylidene chloride-series polymer. ... Daicel Corporation

05/11/17 / #20170130079

Monomer composition and curable composition containing same

Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes vinyl ether compounds (a). ... Daicel Corporation

05/11/17 / #20170128182

Injection system using needleless syringe

An injection system of the present invention comprises a needleless syringe; a transfer passage which connects a first space for accommodating a plurality of injection targets and a second space as a transfer destination of the plurality of injection targets, the transfer passage being installed with the needleless syringe so that an emission port of the needleless syringe is open at inside of the transfer passage; a detecting unit which is capable of detecting transfer through the transfer passage in order for the injection target existing in the first space to go toward the second space; and a control unit which performs emission of the injection objective substance from the emission port of the needleless syringe for every injection target in accordance with the transfer of the injection target, if the transfer of the injection target is detected by the detecting unit. Accordingly, the load exerted on an operator is mitigated as far as possible and the occurrence of various problems concerning the hygiene is suppressed when the injection is performed for a large number of the injection targets such as domestic animals or the like.. ... Daicel Corporation

04/13/17 / #20170100545

Syringe

. . A syringe includes a holding portion that accommodates an injection objective substance, a driving portion that applies injection energy, and a nozzle portion that includes a passage for injection, with these portions being loaded into a housing independently, whereby a state where the injection objective substance can be injected is established. The syringe includes a regulating means for regulating a loading position of the holding portion and the driving portion within the housing so that a loading state, where the holding portion and the driving portion are always loaded in the same order into the housing, is established for injection of the injection objective substance. ... Daicel Corporation

04/13/17 / #20170099871

Cigarette filter tow band

Provided is a material (cigarette component) that enables the elimination or minimization of illicit cigarette production. Specifically, related is a cigarette filter tow band including a crimped bundle of filaments. ... Daicel Corporation

04/06/17 / #20170098847

Resin film, laminate, method for producing same, and method for producing fuel cell

A polymer film comprises a polymer composition containing (a) a cyclic olefin polymer containing an olefin unit having a c3-10alkyl group as a side chain thereof and (b) a chlorine-containing polymer. The chlorine-containing polymer (b) may comprise a vinylidene chloride-series polymer. ... Daicel Corporation

04/06/17 / #20170096522

Epoxy resin composition and cured product of same

The present invention relates to an epoxy resin composition containing an alicyclic epoxy compound (a), a polymer polyol having two or more terminal hydroxyl groups (b), and a lewis acid-amine complex (c). The present invention provides an epoxy resin composition which can be cured by heating at low temperatures, and suppresses heat generation associated with curing (heat generation by curing). ... Daicel Corporation

03/23/17 / #20170082510

Flange fastening skill determination apparatus and flange fastening skill determination program

. . A flange fastening skill determination apparatus includes: a receiver configured to receive output signals from respective tightening force detectors when a testee tightens a plurality of bolts for connecting flanges together, the tightening force detectors corresponding to the plurality of respective bolts; a measurer configured to obtain measurement results indicating transition of change in each of the output signals from a start to an end of tightening a corresponding bolt; a calculator configured to obtain a first calculation result indicating variation among output signal values during the tightening, a second calculation result indicating variation among output signal values at a time of completion of the tightening, and a third calculation result indicating a degree of tightening force of each of the plurality of bolts at the time of completion; and a determiner configured to determine a skill level of the testee based on the results.. . ... Daicel Corporation

03/23/17 / #20170080894

Gas generator

The present invention provides a gas generator including an ignition device chamber provided with the ignition device, a gas inflow chamber provided with a gas discharge port, and a pressurized gas chamber being arranged in order from the first end; a closing member including a fixing portion and a rupturable plate fixed to the fixing portion and closing between the pressurized gas chamber and the gas inflow chamber; and a breaking device for the rupturable plate being arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base portion, which has an outer circumferential surface abutted against an inner circumferential wall surface of the cylindrical housing, and a rod extending from the base portion to the rupturable plate, the fixing portion of the closing member including an annular plate surface portion, extending radially inward from the inner circumferential wall surface of the cylindrical housing, and a cylindrical wall portion extending from an inner circumference of the annular plate surface portion towards the gas inflow chamber, the rupturable plate of the closing member being fixed by welding to the annular plate surface portion of the fixing portion from the pressurized gas chamber, the breaking device being disposed such that a tip end of the rod is enclosed by the cylindrical wall portion of the fixing portion of the closing member.. . ... Daicel Corporation

02/16/17 / #20170043743

Gas generator

. . . . The present invention provides a gas generator including: a cylindrical housing having an ignition device which is fixed to an opening at a first end, and a second end which is closed, the inside of the cylindrical housing being provided with an ignition device chamber, a gas inflow chamber and a pressurized gas chamber, these chambers being arranged in the above order from the first end; a rupturable plate closing a gas outflow port between the pressurized gas chamber and the gas inflow chamber; and a breaking device arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base and a rod extending from the base towards the rupturable plate, the rod including a rod main body portion and a rod enlarged-diameter portion at a distal end portion thereof, the rod enlarged-diameter portion including a distal end surface portion facing the rupturable plate and a circumferential wall portion, the distal end surface portion of the rod enlarged-diameter portion including a breaking portion and a non-breaking portion for the rupturable plate, the non-breaking portion being a concave portion which is formed in a portion including a circumferential region of the distal end surface portion and concaved in a thickness direction, a circumferential extent in which the non-breaking portion is formed as the concave portion being in such a range that an angle around the center of the distal end surface portion is not more than 100 degrees.. . ... Daicel Corporation

02/16/17 / #20170043396

Silver particle coating composition

The present invention provides a silver particle coating composition that develops excellent conductivity by low-temperature and short-time calcining, and preferably achieves excellent adhesion between a silver coating film and a substrate. A silver particle coating composition comprising: silver nano-particles (n) whose surfaces are coated with a protective agent containing an aliphatic hydrocarbon amine; silver microparticles (m); and a dispersion solvent. ... Daicel Corporation

01/26/17 / #20170022343

Transparent layered film, process for producing same, and electrode for touch panel

. . . . . . A transparent layered film is produced by forming an anti-water-mark layer on a first side of a transparent resin layer and forming an uneven structure on a surface of the anti-water-mark layer, wherein the anti-water-mark layer comprises a cured product of a curable composition containing a curable resin, a thermoplastic resin, and a metal oxide particle having an average primary particle size of 1 to 100 nm, and the uneven structure has a roughness average ra of not less than 0.005 and less than 0.03 μm, a mean spacing of profile irregularities sm of 50 to 300 μm, an average absolute slope Δa of less than 0.1°, and a ten-point average roughness rz of less than 0.2 μm. Lamination of the film on a glass-containing upper electrode of a touch screen display prevents scattering of glass fragments produced by breakage of the upper electrode, occurrence of water marks, and sparkling on a high-definition display provided with the film.. ... Daicel Corporation

01/26/17 / #20170020749

Hydrophilized cellulose acetate tow band, and absorbent material produced using same

A hydrophilized cellulose acetate tow band according to the present invention includes a crimped cellulose acetate tow band, and a hydrophilizing component having an hlb value of 16 or more. The cellulose acetate tow band includes a cellulose acetate having a degree of substitution of 2.0 to 2.6. ... Daicel Corporation

01/19/17 / #20170015605

Gas generating composition

. . Provided is a gas generating agent with a low combustion temperature and good ignition ability. The gas generating agent includes: (a) a fuel; (b) an oxidizing agent including a basic metal nitrate; (c) a basic metal carbonate; and (d) a binder (not including a component selected from starch, etherified starch, methyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, guar gum, etherified guar gum, tamarind gum, poly(vinyl alcohol), polyvinyl ether, polyacrylamide, polyethylene oxide, and polyvinyl pyrrolidone). ... Daicel Corporation

01/19/17 / #20170015492

Package of filter tow bale packed with packing material in a non-hermetic state and manufacturing method thereof

The present invention provides a package of a filter tow bale made of cellulose acetate packed with a packing material in a non-hermetic state, which can be stacked in multistage and in which tows in the same bale can be uniformly maintained. The package of the filter tow bale made of cellulose acetate is packed with the packing material in the non-hermetic state, in which the filter tow bale is tightened with the packing material in the package, the filter tow bale has a cubic shape or a rectangular parallelepiped shape with 800 to 1,400 mm in length, 800 to 1,150 mm in width, and 800 to 1,100 mm in height, and a packing initial pressure between a top surface of the filter tow bale and the packing material is 6.3 kpa or less.. ... Daicel Corporation

01/12/17 / #20170009003

Curable composition, cured product thereof, and wafer level lens

. . Provided is a curable composition that is rapidly cured to form a cured product. The cured product resists yellowing, successfully maintains excellent transparency over a long time even in a high-temperature environment, and is advantageously usable as or in a wafer-level lens. ... Daicel Corporation

01/12/17 / #20170007768

Needleless syringe

The present application relates to a needleless syringe for injecting an injection objective substance into an injection target area without using an injection needle. In one aspect, the needleless syringe includes a main syringe body containing the injection objective substance with the use of a sealing member, a pressurizing unit provided in the main syringe body and configured to pressurize the injection objective substance, a flow passage unit defining a flow passage of the pressurized injection objective substance to be discharged to the injection target area and a preparatory filling unit configured to fill the flow passage unit with a part of the injection objective substance by destroying a part of the sealing member before the injection objective substance is pressurized. ... Daicel Corporation

01/12/17 / #20170006912

Cellulose acetate tow band for use in cigarette filter, cigarette filter, apparatus for manufacturing tow band, and method of manufacturing tow band

A cellulose acetate tow band for use in a cigarette filter, in which a filament denier is not less than 5.0 denier, a feret area of a filament is not less than 0.5, and/or a ratio s/l of a cross-sectional area s of the filament to a cross-sectional peripheral length l of the filament is not less than 5. The filament denier may be not more than 10 denier. ... Daicel Corporation








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