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. 12, 2003
Filed:
Jun. 06, 2001
Akira Takaki, Kobe, JP;
Toshio Mizuta, Takasago, JP;
Tomomichi Hashimoto, Takasago, JP;
Toshiyuki Mori, Akashi, JP;
Kaneka Corporation, Osaka, JP;
Abstract
There is provided an excellent impact modifier for a vinyl chloride resin. There is used, as an excellent impact modifier, a copolymer which is prepared by polymerizing 10 to 70% by weight of a monomer or monomers containing 60 to 100% by weight of at least one vinyl monomer selected from the group consisting of a (meth)acrylate compound, an aromatic vinyl compound, a vinyl cyanide compound and vinyl chloride, and 0 to 40% by weight of the other monomer copolymerizable therewith, in the presence of 30 to 90% by weight of a hollow rubber particle of which glass transition temperature Tg is at most 0° C. and a void ratio is 3 to 90% by volume in a latex state, and which contains a cross linking agent in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total rubber component monomer.