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:
Dec. 13, 1983
Filed:
Jul. 19, 1982
Applicant:
Inventors:
Eric R Larsen, Midland, MI (US);
Ernest L Ecker, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C08G / ;
U.S. Cl.
CPC ...
502168 ; 252436 ; 528274 ;
Abstract
Unsaturated esters can be prepared from dicarboxylic acids and dibromoneopentyl glycol with improved resin color in a shorter reaction time with minimal corrosion of metallic reaction vessels and with a net energy saving by the process using an aryl sulfonic acid as the esterification catalyst and following completion of the reaction neutralizing the acid catalyst.