Icl ip America Inc patents

Process of preparing cyclic phosphonate ester, cyclic phosphonate ester prepared therefrom and industrial applications containing the same

There is provided herein a process for preparing cyclic phosphonate ester comprising reacting a glycol with at least one of phosphonic acid and phosphinic acid in the presence of a solvent. There is also provided a flame retardant comprising the cyclic phosphonate ester and industrial applications containing a flame retardant... Icl ip America Inc

Flame retardant additive composition comprising cyclic phosphonate blend and bis-phosphate ester, and polyurethane foam containing the same

There is provided herein a flame retardant additive composition comprising (a) a cyclic phosphonate mixture of (i) (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester of P-alkylphosphonic acid and (ii) bis[(5-ethyl-2-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl]ester of P-alkyl phosphonic acid; and, (b) an aryl bisphosphate ester of the general formula (I) herein. There is also provided herein a polyurethane foam... Icl ip America Inc

Method of making hydroxymethylphosphonate, polyurethane foam-forming compositions, polyurethane foam and articles made therefrom

There is provided herein a method of making hydroxymethylphosphonate comprising reading paraformaldehyde, at least one dialkyl phosphite and at least one trialkyl phosphite, in the presence of at least one amine catalyst... Icl ip America Inc

Non-halogenated flame retardant unsaturated polyester resins/composites containing metal phosphonate

Halogen-free flame retarded unsaturated polyester (UPE) composites are described, where aluminum methyl methylphosphonate (AMMP) was added to a UPE matrix in order to obtain a UL94-V0 formulation. The combustion properties of AMMP are improved to that of aluminum trihydrates (ATH) in cone calorimetry. The use of AMMP prepared with phosphonium... Icl ip America Inc