Patent Number: 6,310,148

Title: Stryrene resin composition and process for producing the same

Abstract: A styrene resin composition excellent in luster, rigidity and surface impact strength is provided. A mixed solution of (b1) a homopolymer of a diene monomer or (b2) a copolymer of a styrene monomer and a diene monomer, the copolymer having 15% or less on a weight basis of the styrene structure units, (b3) a copolymer of a styrene monomer and a diene monomer, the copolymer having 20 to 50% on a weight basis of the styrene structure units, (a1) a styrene monomer, and (a2) a (meth)acrylic acid alkyl ester is continuously bulk polymerized in a continuous bulk polymerization line having incorporated therein a tubular reactor with a plurality of mixing elements that have no mobile part fixed inside thereof.

Inventors: Morita; Tsuyoshi (Chiba, JP), Fujihira; Mamoru (Funabashi, JP), Matsuo; Jiro (Chiba, JP)

Assignee: Dainippon Ink and Chemicals, Ltd.

International Classification: C08L 55/02 (20060101); C08F 257/00 (20060101); C08F 279/02 (20060101); C08L 55/00 (20060101); C08L 51/00 (20060101); C08L 53/00 (20060101); C08L 53/02 (20060101); C08L 51/04 (20060101); C08F 279/00 (20060101); C08F 257/02 (20060101); C08L 051/04 (); C08L 051/00 ()

Expiration Date: 10/30/2018