Vinyl chloride resin composition
AssigneeKaneka Corporation
InventorKenji Takamizu
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Abstract
A vinyl chloride resin composition includes 100 parts by weight of a vinyl chloride resin (A) and 0.1 to 20 parts by weight of a processing aid (B), wherein the processing aid (B) includes 50 to 95% by weight of a first polymer (b1) and 5 to 50% by weight of a second polymer (b2) and has a weight average molecular weight of 100,000 to 4,000,000. The first polymer (b1) has Tg of 5 to 110° C. and is polymerized with 12 to 28 w % of a vinyl cyanide compound, 32 to 88 w % of an aromatic vinyl compound, 0 to 40 w % of an alkyl acrylate, and 0 to 30 w % of other vinyl compound copolymerizable with the vinyl cyanide compound, the aromatic vinyl compound, and the alkyl acrylate, per 100 w % of the first polymer (b1).
Claims21
A vinyl chloride resin composition comprising:
- 100 parts by weight of a vinyl chloride resin (A);
- and 0.1 to 20 parts by weight of a processing aid (B), wherein
- the processing aid (B) comprises 50 to 95% by weight of a first polymer (b1) and 5 to 50% by weight of a second polymer (b2) and has a weight average molecular weight of 100,000 to 1,500,000, and wherein
- the first polymer (b1) has Tg of 5 to 110° C. and is polymerized with 12 to 28% by weight of a vinyl cyanide compound, 32 to 88% by weight of an aromatic vinyl compound, 0 to 40% by weight of an alkyl acrylate, and 0 to 30% by weight of other vinyl compound copolymerizable with the vinyl cyanide compound, the aromatic vinyl compound, and the alkyl acrylate, per 100% by weight of the first polymer (b1),
- the second polymer (b2) has Tg of −40 to 50° C., and
- the first polymer (b1) has Tg of 40° C. or higher than Tg of the second polymer (b2).
Dependencies are inferred from the claim text.