The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2001
Filed:
Mar. 28, 2000
Dainippon Ink and Chemicals, Ltd., Tokyo, JP;
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.