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Celanese International Corporation patents


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

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


Carpet tiles and methods of their manufacture

A carpet tile comprises a primary backing layer comprising a flexible substrate with fiber tufts extending through and from one surface of the substrate to define, in use, the upper wear surface of the tile. A pre-coat adhesive layer formed from an aqueous copolymer dispersion is provided on the opposite surface of the primary backing substrate to secure the fiber tufts to the substrate and a secondary adhesive layer formed from an aqueous copolymer dispersion is provided on the pre-coat adhesive layer. ... Celanese International Corporation

High flow fiber-reinforced propylene composition having low emissions

A fiber-reinforced polymer composition that contains a polymer matrix and a plurality of long reinforcing fibers that are distributed within the polymer matrix is provided. The polymer matrix contains a propylene polymer and constitutes from about 30 wt. ... Celanese International Corporation

Long fiber-reinforced propylene composition for use in a thin part

A fiber-reinforced polymer composition that comprises a polymer matrix that contains a propylene polymer is provided. The polymer matrix constitutes from about 30 wt. ... Celanese International Corporation

Waterborne acrylic dispersions with high biorenewable content

An aqueous copolymer dispersion is formed by emulsion polymerization of a monomer mixture comprising (a) 20 to 80 wt. % of one or more (meth)acrylic acid esters a, whose homopolymer(s) have a tg>25° c. ... Celanese International Corporation

Processes for purifying acetic acid and hydrating anhydride

Processes for purifying acetic acid by distilling a process in a column in which acetic anhydride is formed in the lower portion of the column. The product stream withdrawn from the column comprises acetic acid, water at a concentration of no more than 0.2 wt. ... Celanese International Corporation

Oxazoline anti-condensation compositions, laminates, and processes for making the same

Anti-condensation compositions and laminates comprising a cellulosic material selected from a cellulose ester and a cellulose ether and a polymer of an oxazoline, and processes for making such anti-condensation compositions without the need for saponification. Such compositions have now been shown to exhibit extremely desirable anti-condensation characteristics, with a low degree of hazing and increased hardness.. ... Celanese International Corporation

Process to control hi concentration in residuum stream

A process directed to acetic acid production comprising providing a feed stream comprising methyl iodide, water, acetic acid, methyl acetate, and at least one prc to a distillation column comprising a distillation zone and a bottom sump zone and distilling the feed stream at a pressure and a temperature sufficient to produce an overhead stream comprising methyl iodide and at least one prc, and a residuum stream flowing from the bottom sump zone comprising water and greater than or equal to about 0.11 weight percent hi is disclosed herein.. . ... Celanese International Corporation

Acesulfame potassium compositions and processes for producing same

Improved processes for producing high purity acesulfame potassium. In one embodiment, the process comprises the steps of contacting a solvent, e.g., dichloromethane, and a cyclizing agent, e.g., sulfur trioxide, to form a cyclizing agent composition and reacting an acetoacetamide salt with the cyclizing agent in the composition to form a cyclic sulfur trioxide adduct. ... Celanese International Corporation

Acesulfame potassium compositions and processes for producing same

A process for producing acesulfame potassium, the process comprising the steps of providing a cyclizing agent composition comprising a cyclizing agent and a solvent and having an initial temperature, cooling the cyclizing agent composition to form a cooled cyclizing agent composition having a cooled temperature less than 35° c., reacting an acetoacetamide salt with the cyclizing agent in the cooled cyclizing agent composition to form a cyclic sulfur trioxide adduct composition comprising cyclic sulfur trioxide adduct; and, forming from the cyclic sulfur trioxide adduct in the cyclic sulfur trioxide adduct composition the finished acesulfame potassium composition comprising non-chlorinated acesulfame potassium and less than 39 wppm 5-chloro-acesulfame potassium. The cooled temperature is at least 2° c. ... Celanese International Corporation

Acesulfame potassium compositions and processes for producing same

Compositions and processes for producing high purity acesulfame potassium are described. One process comprises the steps of providing a crude acesulfame potassium composition comprising acesulfame potassium and acetoacetamide, concentrating the crude acesulfame potassium composition to form a water stream and an intermediate acesulfame potassium composition comprising acesulfame potassium and less than 33 wppm acetoacetamide, and separating the intermediate acesulfame potassium composition to form the finished acesulfame potassium composition comprising acesulfame potassium and less than 33 wppm acetoacetamide. ... Celanese International Corporation

Acesulfame potassium compositions and processes for producing same

Compositions and processes for producing high purity acesulfame potassium are described. One process comprises the steps of forming a cyclic sulfur trioxide adduct; hydrolyzing the cyclic sulfur trioxide adduct to form an acesulfame-h composition comprising acesulfame-h; neutralizing the acesulfame-h in the acesulfame-h composition to form a crude acesulfame potassium composition comprising acesulfame potassium and less than 2800 wppm acetoacetamide-n-sulfonic acid, wherein the neutralizing step is conducted or maintained at a ph at or below 11.0; and treating the crude acesulfame potassium composition to form the finished acesulfame potassium composition comprising acesulfame potassium and less than 37 wppm acetoacetamide-n-sulfonic acid.. ... Celanese International Corporation

Waterborne copolymer dispersions with improved wet scrub resistance

An aqueous copolymer dispersion comprises at least one copolymer formed from a mixture comprising one or more main monomers selected from the group consisting of one or more vinyl esters of c1-c18 alkanoic acids, vinyl esters of aromatic acids, olefins, dienes, esters of ethylenically unsaturated carboxylic acids, vinylaromatics, and vinylhalogenides; from 0.05 to 5% by weight of one or more ethylenically unsaturated polycarboxylic acids or anhydrides thereof; from 0.05 to 10% by weight of one or more ethylenically unsaturated epoxy-containing compounds; and from 0.05 to 5% by weight of one or more hydrolyzable silicon compounds; wherein all percents are % by weight based on the total weight of the main monomers in the mixture.. . ... Celanese International Corporation

Low emission, high scrub vae latex paints

A water-based, low-emission latex paint formulation includes a vinyl acetate/ethylene (vae) latex including a vae resin with from 80 to 95 weight % vinyl acetate residue and from 5 to 20 weight % ethylene residue, optionally including additional monomers as well as a pigment composition including inorganic solids selected from inorganic pigments, inorganic fillers and mixtures thereof present in an amount such that the paint formulation has a pigment volume concentration (pvc) of from 25% to 85%. The formulations are suitable for eggshell and flat latex paints and exhibit surprising durability.. ... Celanese International Corporation

Method and apparatus for carbonylating methanol with acetic acid enriched flash stream

A carbonylation process for producing acetic acid including: (a) carbonylating methanol or its reactive derivatives in the presence of a group viii metal catalyst and methyl iodide promoter to produce a liquid reaction mixture including acetic acid, water, methyl acetate and methyl iodide; (b) feeding the liquid reaction mixture at a feed temperature to a flash vessel which is maintained at a reduced pressure; (c) heating the flash vessel while concurrently flashing the reaction mixture to produce a crude product vapor stream, wherein the reaction mixture is selected and the flow rate of the reaction mixture fed to the flash vessel as well as the amount of heat supplied to the flash vessel is controlled such that the temperature of the crude product vapor stream is maintained at a temperature less than 90° f. Cooler than the feed temperature of the liquid reaction mixture to the flasher and the concentration of acetic acid in the crude product vapor stream is greater than 70% by weight of the crude product vapor stream.. ... Celanese International Corporation

12/07/17 / #20170349522

Processes for producing an acetic acid product having low butyl acetate content

A process for producing an acetic acid product having low butyl acetate content via a carbonylation reaction. The carbonylation reaction is carried out at a temperature from 100 to 300° c., a hydrogen partial pressure from 0.3 to 2 atm, and a metal catalyst concentration from 100 to 3000 wppm, based on the weight of the reaction medium. ... Celanese International Corporation

09/28/17 / #20170275447

Aqueous cross-linkable polymer dispersions

An aqueous cross-linkable copolymer dispersion is formed by emulsion polymerization of a monomer mixture comprising at least one ethylenically unsaturated main monomer and at least one 1,3-dicarbonyl functionalized monomer and lysine or a salt thereof.. . ... Celanese International Corporation

06/08/17 / #20170158901

Cellulose acetate film forming compositions

A cellulose acetate lacquer composition comprises a film forming composition and a diluent. The film forming compositions comprise cellulose acetate, a plasticizer, a secondary film former, and at least one organic solvent. ... Celanese International Corporation

05/18/17 / #20170137661

Aqueous latex-based coating compositions

An aqueous coating composition comprises (a) an aqueous polymer dispersion formed by emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of a chain transfer agent, wherein the polymer has a fikentscher k value less than 60; (b) at least one organic pigment; and (c) at least one inorganic filler.. . ... Celanese International Corporation

05/18/17 / #20170137364

Processes for purifying acetic and hydrating anhydride

Processes for purifying acetic acid by distilling a process in a column in which acetic anhydride is formed in the lower portion of the column. The product stream withdrawn from the column comprises acetic acid, water at a concentration of no more than 0.2 wt. ... Celanese International Corporation

05/18/17 / #20170137361

Processes for producing acetic acid

Process for producing acetic acid are disclosed in which a vapor sidedraw is withdrawn from the second column in the primary purification train. The vapor sidedraw comprises acetic acid and lithium-containing compounds at a concentration of no more than 100 wppb. ... Celanese International Corporation

03/23/17 / #20170081544

Carpet coating compositions

An aqueous carpet coating composition comprises: (a) at least one particulate filler material; and (b) a stabilized copolymer dispersion comprising: (a) a copolymer formed by emulsion polymerization of a monomer mixture comprising a vinyl ester of an alkanoic acid having 1 to 18 carbon atoms and 1 to 25 pphm of ethylene, wherein the copolymer comprises particles having a weight average particle size, dw, of at least 200 nm as determined by beckman coulter ls 13320; (b) water; and (c) a stabilizing system comprising (i) 1 to 4 pphm of an emulsifier component consisting of at least one non-ionic surfactant and (ii) 0.5 to 4 pphm of at least one first polyvinyl alcohol component having a degree of hydrolysis greater than 92 mol %.. . ... Celanese International Corporation

01/12/17 / #20170009056

Anti-fog compositions and processes for making same

Anti-fog compositions comprising a primary film having opposing major planar surfaces and a central coplanar region disposed between the opposing major planar surfaces and comprising cellulose acetate and a plasticizer. The cellulose acetate may have a degree of substitution less than 2.6. ... Celanese International Corporation

01/12/17 / #20170006859

Agricultural adjuvants and processes for making and using same

An agricultural spray pre-mix composition, comprising from 0.01 wt % to 40 wt % of an agricultural spray adjuvant comprising a vinyl ester-based or vinyl acrylate-based polymer dispersion and greater than 15 wt % of a plasticizer and from 1 wt % to 50 wt % of a water conditioning agent.. . ... Celanese International Corporation

01/05/17 / #20170001938

Process for flashing a reaction medium

A process for producing acetic acid is disclosed in which the methyl iodide concentration is maintained in the vapor product stream formed in a flashing step. The methyl iodide concentration in the vapor product stream ranges from 24 to less than 36 wt. ... Celanese International Corporation

01/05/17 / #20170001937

Processes for producing acetic acid

A process for producing acetic acid is disclosed in which the water concentration is controlled in the side stream between two columns. Controlling the water concentration by the liquid light phase recycle controls the hydrogen iodide concentration in the side stream to be less than 50 wppm.. ... Celanese International Corporation








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