Abstract: There is provided herein a flame-retarded polyolefin composition comprising a thermoplastic polyolefin, an inorganic flame retardant filler and a metal phosphonate or metal phosphinate synergist of the general formula (A): where Me is a metal, R1 and R2 are the same or different linear or branched or cyclic alkyls having up to 6 carbon atoms, or benzyl, n is a metal valency and can be, 1, 2, 3 or 4, x is 1 for metal phosphonates and x is 0 for metal phosphinates. There is also provided a method for making a flame-retarded polyolefin composition comprising contacting at least one thermoplastic polyolefin polymer with at least one inorganic flame retardant filler and at least one metal phosphonate or metal phosphinate synergist and heating the mixture to above the melting temperature of the thermoplastic polyolefin.

Abstract: There is provided herein an epoxy laminate comprising (a) an epoxy resin composition further comprising (i) at least one curable epoxy resin, (ii) at least one curing agent, (iii) at least one curing catalyst; and, (iv) a flame retardant effective amount of at least one metal phosphonate represented by the general formula: where Me is a metal, n is equal to the valency of the metal which is in the range of from 1 to 4, R1 is a linear or branched alkyl of up to about 12 carbon atoms, R2 is a linear or branched alkyl of up to about 12 carbon atoms or a substituted aryl or unsubstituted aryl of general formula: where R3 hydrogen, or a branched or linear alkyl of up to about 4 carbon atoms, or NH2 or CN or NO2, (b) a reinforcing material; and, (c) a copper foil.

Abstract: Neopentyl glycol bis(diphenyl phosphate) liquid compositions are described that comprise from about 75% to about 90%, by weight, of neopentyl glycol bis(diphenyl phosphate), less than about 5% by weight of cyclic product, less than about 8% by weight of triphenyl phosphate, and with a P3 content of no less than about 1%, by weight. These compositions are made by continuously adding neopentyl glycol to a diaryl chlorophosphate mixture at elevated temperature, under vacuum, and in the presence of a catalyst.

Abstract: A process for the alkylation of triphenylphosphate by reaction of triphenylphosphate with an olefin in the presence of an effective amount of a solid acid catalyst selected from the group consisting of at least one zeolite, heteropolyacid or salt thereof, metal triflate, non-aryl group-containing metal sulfonic acid, metal halide Lewis acid, or compatible mixture of any such catalyst.

Abstract: A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises contacting the esters with an effective amount of a benzofuranone (e.g., is 5,7-di-t-butyl-3-(3,4 di-methylphenyl)3H-benzofuran-2-one) for a sufficient length of time to decolorize and stabilize the esters against subsequent color formation.

Abstract: A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises contacting the esters with an effective amount of a benzofuranone (e.g., is 5,7-di-t-butyl-3-(3,4 di-methylphenyl)3H-benzofuran-2-one) for a sufficient length of time to decolorize and stabilize the esters against subsequent color formation.

Abstract: A process for the alkylation of triphenylphosphate by reaction of triphenylphosphate with an olefin in the presence of an effective amount of a solid acid catalyst selected from the group consisting of at least one zeolite, heteropolyacid or salt thereof, metal triflate, non-aryl group-containing metal sulfonic acid, metal halide Lewis acid, or compatible mixture of any such catalyst.