Patent ID: 8975320
Filing Date: 2015-03-10
Classification: C08K,C09K

Abstract:
1. A flame retardant composition, comprising: at least one polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, polyurethane, polycarbonate and polycarbonate/acrylonitrile/butadiene/styrene block copolymer; and a flame retardant additive comprising a polyacrylate which is a salt of a polyacrylic acid, a salt of a crosslinked polyacrylic acid, a salt of a copolymer of acrylic acid with an olefin or other monomer, a salt of a crosslinked copolymer of acrylic acid with an olefin or other monomer or a salt of a graft copolymer of acrylic acid with an olefin or other monomer improving the compatibility of the additive with the polymer, in combination with a) at least one zinc borate, b) at least one silicone resin, and c) alumina trihydrate or magnesium hydroxide or a mixture thereof, said additive being free of halogens, antimony oxide and phosphorus-containing substances.