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:
Sep. 11, 2001
Filed:
Dec. 05, 1997
Applicant:
Inventors:
Takeshi Moritani, Kurashiki, JP;
Kaoru Ikeda, Kurashiki, JP;
Akimasa Aoyama, late of Kurashiki, JP;
Takaharu Kawahara, Okayama, JP;
Yukihiro Ohara, Okayama, JP;
Naoshi Nakagawa, Osaka, JP;
Toshinori Tsugaru, Osaka, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/00 ;
U.S. Cl.
CPC ...
C08F 8/00 ;
Abstract
A process for producing vinyl acetate polymers comprises, after polymerization of at least one monomer comprising vinyl acetate, adding a conjugated polyene having a boiling point of at least 20° C. Saponified products of the vinyl acetate polymers obtained by this process can give molded articles causing little coloring and generation of gel-like agglomerates.