C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/3052
C08F 255/06 (2006.01) C08L 25/12 (2006.01) C08L 25/14 (2006.01) C08L 51/06 (2006.01)
Patent
CA 1262978
- 1 - Abstract The invention provides a weather resistant thermoplastic resin composition which comprises (A) a graft polymer comprising a rubber (A-1) chosen from a copolymer of ethylene and propylene, a terpolymer of ethylene, propylene and a non-conjugated diene, a copolymer of ethylene and vinyl acetate, an alkyl acrylate or methacrylate polymer and a chlorinated polyethylene and (A-2) at least two kinds of monomers chosen from aromatic vinyl compounds, vinyl cyanide compounds and unsaturated carboxylic acid alkyl esters grafted thereon; and (B) a terpolymer comprising styrene aromatic compounds, vinyl cyanide compounds and unsaturated carboxylic acid alkyl esters. The weight proportion of the graft polymer (A) and the terpolymer (B) is from 10 : 90 to 90 : 10. The amounts of styrene, the vinyl cyanide compounds and the unsaturated carboxylic acid alkyl esters in the terpolymer (B) is preferably 3 to 65% by weight, 2 to 35% by weight and 3 to 95% by weight, respectively. The resin has improved color development, impact resistance and resistance to thermal decomposition.
481813
Hirai Mikio
Nishikubo Yoshiaki
Ochi Tsuneo
Yoshida Tomio
Kirby Eades Gale Baker
Sumitomo Dow Limited
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