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:
Jun. 06, 2017
Filed:
Oct. 17, 2014
Applicant:
Osaka Organic Chemical Industry Ltd., Osaka-shi, Osaka, JP;
Inventors:
Assignee:
OSAKA ORGANIC CHEMICAL INDUSTRY LTD., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/40 (2006.01); C07C 67/03 (2006.01);
U.S. Cl.
CPC ...
C07C 67/40 (2013.01); C07C 67/03 (2013.01);
Abstract
A process for preparing 4-hydroxybutyl acrylate by transesterifying an alkyl acrylate with 1,4-butanediol in the presence of a dialkyltin oxide such that each of the alkyl groups has 4 to 8 carbon atoms, characterized in that the amount of the dialkyltin oxide is adjusted to 0.00001 to 0.01 moles per one mole of the alkyl acrylate.