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US 9,790,308 B2Granted
Alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer with improved low-temperature impact strength and polycarbonate composition comprising the same
AssigneeLG Chem, Ltd.
InventorsHye Kyung Han, Yong Yeon Hwang, Min Jung Kim, Chun Ho Park, Sang Mi Lee
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Abstract
Disclosed are an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer which is prepared using a polyalkylene cross-linking agent such as polyethylene glycol diacrylate or polyethylene glycol dimethacrylate for a core of the alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer and thus advantageously improves low-temperature impact strength of resins when the copolymer is applied to a polycarbonate resin composition, and the polycarbonate resin composition comprising the copolymer.
Claims12
An alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer comprising:
- (A) a seed comprising 4 to 30 parts by weight of at least one selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound and alkyl acrylate;
- (B) a rubber core surrounding the seed, the rubber core comprising 20 to 80 parts by weight of alkyl acrylate and 0.01 to 3 parts by weight of a polyalkylene glycol-based cross-linking agent;
- and
- (C) a graft shell surrounding the rubber core, the graft shell comprising 10 to 70 parts by weight of at least one selected from the group consisting of an aromatic vinyl compound and a vinyl cyanide compound, and 0.01 to 3 parts by weight of the cross-linking agent,
- with respect to 100 parts by weight in total of the alkyl acrylate, the aromatic vinyl compound and the vinyl cyanide compound,
- wherein the polyalkylene glycol-based cross-linking agent comprises at least one selected from the group consisting of polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, polypropylene glycol diacrylate and polypropylene glycol dimethacrylate, and
- wherein the polyalkylene glycol-based cross-linking agent has a number average molecular weight of 575 to 1,000 g/mol.
4 more elements
A polycarbonate resin composition comprising:
- 1 to 20% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer;
- and
- 80 to 99% by weight of a polycarbonate resin,
- wherein the alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer comprises:
- (A) a seed comprising at least one selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound and alkyl acrylate;
- (B) a rubber core surrounding the seed, the rubber core comprising alkyl acrylate and a polyalkylene glycol-based cross-linking agent;
- and
- (C) a graft shell surrounding the rubber core, the graft shell comprising at least one selected from the group consisting of an aromatic vinyl compound and a vinyl cyanide compound,
- wherein the polyalkylene glycol-based cross-linking agent comprises at least one selected from the group consisting of polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, polypropylene glycol diacrylate and polypropylene glycol dimethacrylate, and
- wherein the polyalkylene glycol-based cross-linking agent has a number average molecular weight of 575 to 1,000 g/mol.
7 more elements
A polycarbonate resin composition comprising:
- 1 to 20% by weight of Ma an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer;
- 62 to 97% by weight of a polycarbonate resin;
- and
- 1 to 20% by weight of an acrylonitrile-styrene copolymer,
- wherein the alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer comprises:
- (A) a seed comprising at least one selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound and alkyl acrylate;
- (B) a rubber core surrounding the seed, the rubber core comprising alkyl acrylate and a polyalkylene glycol-based cross-linking agent;
- and
- (C) a graft shell surrounding the rubber core, the graft shell comprising at least one selected from the group consisting of an aromatic vinyl compound and a vinyl cyanide compound,
- wherein the polyalkylene glycol-based cross-linking agent comprises at least one selected from the group consisting of polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, polypropylene glycol diacrylate and polypropylene glycol dimethacrylate, and
- wherein the polyalkylene glycol-based cross-linking agent has a number average molecular weight of 575 to 1,000 g/mol.
8 more elements
Dependencies are inferred from the claim text.