Abstract A thermoplastic resinous composition (D) comprising A. a resin obtained by graft polymerizing 90 - 10 parts by weight of a monomeric mixture consisting of 90 - 10 percent by weight of a monomeric methacrylic acid ester and 10-90 percent by weight of an aromatic vinyl monomer, in the presence of 10 90 parts by weight of a polybutadiene or butadiene copolymer containing at least 50 percent by weight of butadiene unit; B. a thermoplastic resin obtained by copolymerizing an aromatic vinyl monomer with 15 - 70 percent by weight of said aromatic monomer of a vinyl cyanide monomer; and C. a polycarbonate resin derived from a (4,4''-dihydroxy diphenyl)alkane; WITH THE PROVISION THAT THE RATIO OF THE TOTAL AMOUNT CONTAINED OF THE RESIN (A) and the thermoplastic resin (B) to resin (C) is in the range of 70:30 - 10:90, and that polybutadiene or the butadiene copolymer component containing at least 50 percent by weight of butadiene unit is contained in an amount of 5 - 50 percent by weight of the total amount contained of the resin (A) and the thermoplastic resin (B).
A THERMOPLASTIC COMPOSITION (D) COMPRISING A. A RESIN OBTAINED BY GRAFT POLYMERIZING 90-10 PARTS BY WEIGHT OF A MONOMERIC MIXTURE CONSISTING OF 90-1O PERCENT BY WEIGHT OF A MONOMERIC METHACRYLIC ACID ESTER AND 10-90 PERCENT BY WEIGHT OF AN AROMATIC VINYL MONOMER, IN THE PRESENCE OF 10-90 PARTS BY WEIGHT OF A POLYBUTADIENE OF BUTADIENE-STYRENE COPOLYMER CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF BUTADIENE UNIT; B. A THERMOPLASTIC RESIN OBTAINED BY COPOLYMERIZING AN AROMATIC VINYL MONOMER WITH 15-70 PERCENT BY WEIGHT OF SAID AROMATIC MONOMER OF A VINYL CYANIDE MOBOMER; AND C. A POLYCARBONATE RESIN DERIVED FROM A (4,4''-DIHYDROXY DIPHENYL) ALKANE BY THE ESTER EXCHANGE OR PHOSGENE METHOD; WITH THE PROVISION THAT THE RATIO OF THE TOTAL AMOUNT CONTAINED OF THE RESIN (A) AND THE THERMOPLASTIC RESIN (B) TO RESIN (C) IS IN THE RANGE OF 70:30-10-90, AND THAT POLYBUTADIENE OR THE BUTADIENE COPOLYMER COMPONENT CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF BUTADIENE UNIT IS CONTAINED IN AN AMOUNT OF 5-50 PERCENT BY WEIGHT OF THE TOTAL AMOUNT CONTAINED OF THE RESIN (A) AND THE THERMOPLASTIC RESIN (B).
Claim 2
Dependent Claim
180 words
A THERMOPLASTIC COMPOSITION (D) COMPRISING A. A RESIN OBTAINED BY GRAFT POLYMERIZING 90-10 PARTS BY WEIGHT OF A MONOMERIC MIXTURE CONSISTING OF 90-1O PERCENT BY WEIGHT OF A MONOMERIC METHACRYLIC ACID ESTER AND 10-90 PERCENT BY WEIGHT OF AN AROMATIC VINYL MONOMER, IN THE PRESENCE OF 10-90 PARTS BY WEIGHT OF A POLYBUTADIENE OF BUTADIENE-STYRENE COPOLYMER CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF BUTADIENE UNIT; B. A THERMOPLASTIC RESIN OBTAINED BY COPOLYMERIZING AN AROMATIC VINYL MONOMER WITH 15-70 PERCENT BY WEIGHT OF SAID AROMATIC MONOMER OF A VINYL CYANIDE MOBOMER; AND C. A POLYCARBONATE RESIN DERIVED FROM A (4,4''-DIHYDROXY DIPHENYL) ALKANE BY THE ESTER EXCHANGE OR PHOSGENE METHOD; WITH THE PROVISION THAT THE RATIO OF THE TOTAL AMOUNT CONTAINED OF THE RESIN (A) AND THE THERMOPLASTIC RESIN (B) TO RESIN (C) IS IN THE RANGE OF 70:30-10-90, AND THAT POLYBUTADIENE OR THE BUTADIENE COPOLYMER COMPONENT CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF BUTADIENE UNIT IS CONTAINED IN AN AMOUNT OF 5-50 PERCENT BY WEIGHT OF THE TOTAL AMOUNT CONTAINED OF THE RESIN (A) AND THE THERMOPLASTIC RESIN (B).
Claim 3
Dependent Claim
37 words
A composition according to claim 1 wherein said resinous composition (D) further contains a flame retardant agent selected from the group consisting of hexabromobenzene, tetrabromobisphenol A, tetrabromophthalic anhydride and a carbonate oligomer derived from halogenated bisphenol A.