Patent ID: 9458315
Filing Date: 2016-10-04
CPC Classification: C08K,C08L

Claim Text:
1. A thermoplastic composition comprising 80 to 95 weight percent of a polycarbonate; 3 to 7 weight percent of a talc having an average particle size less than or equal to 5.0 micrometers; an inorganic acid or acid salt comprising a phosphorous containing oxy-acid, a mono zinc phosphate, a mono calcium phosphate, a mono natrium phosphate, or a combination comprising one or more of the foregoing; 0.10 to 0.50 weight percent of an encapsulated fluoropolymer; and greater than 0.40 to 1.00 weight percent of a perfluoroalkyl sulfonate salt, wherein weight percent is based on the total weight of the composition and the weight ratio of inorganic acid or acid salt to talc is 0.01 to 0.04; wherein the thermoplastic composition has a flame retardancy rating of V0 when in the form of a sheet having a thickness of 0.43 mm according to UL94; and wherein the thermoplastic composition is free of an aromatic phosphate ester and a polycarbonate-siloxane block copolymer.