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:
Aug. 17, 1998
Keishi Koizumi, Settsu, JP;
Shigemi Matsumoto, Akashi, JP;
Takao Okimi, Settsu, JP;
Juuichi Nishimura, Takatsuki, JP;
Kaneka Corporation, Osaka, JP;
Abstract
A methacrylate, resin composition having an excellent processability and capable of providing films having excellent impact resistance, transparency, weatherability, solvent resistance and plasticizer migration resistance, which comprises (A) 5 to 50% by weight of a crosslinked acrylate elastomer having a two layer structure of a crosslinked polymer component (a-1) having a glass transition temperature of −30 to 10° C. and a crosslinked polymer component (a-2) having a glass transition temperature of less than −30° C. wherein the component (a-1) is located on the inner side or the outer side and the component (a-2) is located on the outer side or the inner side, and (B) 95 to 50% by weight of an alkyl methacrylate polymer prepared by polymerizing an acrylic monomer containing 80 to 100% by weight of an alkyl methacrylate and 20 to 0% by weight of an alkyl acrylate in the presence of a chain transfer agent and in the presence or absence of the elastomer (A). The composition may further contain a core-shell polymer prepared by graft-polymerizing a monomer containing a major amount of an alkyl methacrylate onto a crosslinked acrylate polymer, whereby molded articles having a matt surface and an excellent flex whitening resistance are obtained.