Styrenic resin composition

Details Styrenic resin composition Styrenic resin composition

2007-05-01

2007-05-01

Teskin, Fred (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S086000, C428S035200, C428S036920, C428S517000

Reexamination Certificate

active

10543402

ABSTRACT:
Surface impact strength in a molded article of an impact-resistant styrene resin composition, and balance between the surface impact strength and the rigidity is improved. Disclosed is a styrene resin composition comprising a styrene copolymer (A), and a block copolymer (B) comprising a polymer block (b1) of a styrene monomer and a polymer block (b2) of a conjugated diene monomer, wherein the styrene copolymer (A) is a copolymer of a styrene monomer (a), a butyl acrylate (b) and a methyl methacrylate (c), the block copolymer (B) forms a multi-layered structure in which a layer of the polymer block (b1) and a layer of the polymer block (b2) of the diene monomer are alternately laminated, and the styrene resin composition has 9 to 25%, on a weight basis, of structural units derived from the conjugated diene monomer.

REFERENCES:
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International Search Report dated Apr. 27, 2004.

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