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:
Aug. 06, 1996
Filed:
Jun. 05, 1995
Naoki Yamamoto, Otake, JP;
Akira Yanagase, Otake, JP;
Tadashi Iwasaki, Kawasaki, JP;
Masakazu Itoh, Otake, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
Graft copolymer particles obtained by graft-polymerizing one or more kinds of vinyl monomer onto a compound rubber comprising a polyorganosiloxane component and an alkyl (meth)acrylate rubber component, which graft copolymer particle has a number average particle size of 0.01 to 0.07 .mu.m, the volume of particles larger than 0.10 .mu.m being 20% or less of the whole particle volume, a method for producing the above graft copolymer particle, wherein one or more kinds of vinyl monomer are graft-polymerized onto a compound rubber obtained by polymerizing an alkyl (meth)acrylate rubber component comprising alkyl (meth)acrylate and a polyfunctional alkyl (meth)acrylate with a polyorganosiloxane having a number average particle size of 0.003 to 0.06 .mu.m, the volume of particles larger than 0.10 .mu.m being 20% or less of the whole particle volume, and thermoplastic resin compositions comprising the above graft copolymer and various thermoplastic resins. The present invention provides graft copolymer particles and their thermoplastic resin composition which can give molded products having both excellent pigment colorability and extremely high impact resistance.