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:
Feb. 15, 2000
Filed:
Nov. 16, 1998
Applicant:
Inventors:
Yoshiro Suzuki, Yokkaichi, JP;
Masahiko Yamagishi, Yokkaichi, JP;
Chikara Sugimoto, Yokkaichi, JP;
Norioki Mine, Yokkaichi, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560205 ;
Abstract
A method for preparing a (meth)acrylic acid ester, which comprises reacting (meth)acrylic acid with a C.sub.1-3 alcohol in the presence of a strongly acidic ion exchange resin as a catalyst, wherein the reaction is carried out under reduced pressure while the molar ratio of the alcohol to the (meth)acrylic acid is adjusted to be less than 1, whereby it is possible not only to improve the esterification yield by one pass but also to reduce the amount of a by-product alkoxypropionate which is problematic in the purification system.