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:
Jul. 05, 2011
Filed:
Aug. 11, 2005
Kenichi Hamada, Tsukuba, JP;
Yoshihiro Morishita, Tsukuba, JP;
Tatsufumi Watanabe, Tsukuba, JP;
Kazushige Ishiura, Tokyo, JP;
Kenichi Hamada, Tsukuba, JP;
Yoshihiro Morishita, Tsukuba, JP;
Tatsufumi Watanabe, Tsukuba, JP;
Kazushige Ishiura, Tokyo, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
A continuous production process, for producing an (meth)acrylic ester (co)polymer comprises the step of continuously feeding an organoaluminum compound-containing polymerization initiator solution and an (meth)acrylic ester into a reactor to continuously obtain a living polymer-containing polymer reaction liquid. The {[molar quantity of methacrylic ester or acrylic ester]/([molar quantity of organoaluminum compound]−[molar quantity of polymerization initiator])} fed into the reactor is regulated to be 15 to 80, and the content of the (meth)acrylic ester in the total feed amount of a polymerization initiator solution and an (meth)acrylic ester fed into the reactor is regulated to not more than 5% by mass.