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:
Oct. 23, 1979
Filed:
Apr. 24, 1978
Applicant:
Inventors:
Roland P Scharrer, Pelham, NY (US);
Martin Epstein, Norwalk, CT (US);
Assignee:
Arizona Chemical Company, Wayne, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09F / ;
U.S. Cl.
CPC ...
260104 ; 260103 ; 09F / ;
Abstract
There are provided oxygen stable rosin-primary polyhydric alcohol esters and a process for esterifying a rosin with a primary polyhydric alcohol in the presence of catalytic amounts of an arylsulfonic acid added either simultaneously or subsequent to the initial rosin-polyhydric alcohol reaction to complete esterification and to obtain a rosin ester having markedly improved oxidation stability and good color.
Scharrer, Roland. (1979). Oxygen-stable rosin-primary polyhydric aliphatic alcohol esters and a (U.S. Patent No. 4172070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4172070
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile