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:
Apr. 27, 1993
Filed:
Jun. 14, 1991
Applicant:
Inventors:
Toshihiro Sato, Otake, JP;
Masao Kobayashi, Otake, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560224 ; 560205 ;
Abstract
4-Hydroxybutyl (meth)acrylate is prepared by reacting (meth)acrylic acid with 1,4-butanediol in the presence of an acidic catalyst. 1,4-Butanediol di(meth)acrylate is added at the beginning of the reaction and the ratios of the butanediol to the acid and of the ester to the acid are kept within specified ranges during the course of the reaction.