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:
Sep. 16, 1980
Filed:
Jul. 30, 1979
Applicant:
Inventor:
John A Alford, Hanahan, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C09F / ;
U.S. Cl.
CPC ...
260107 ; 260 97 ; 260108 ;
Abstract
A process is disclosed for treating rosin with a zinc catalyst and a boric acid catalyst to improve the color and color stability of distilled products. The zinc catalyst is employed in an amount of from 0.01% to about 2.0% by weight of rosin and the boric acid in an amount from 0.001% to about 1.0% by weight of rosin. The rosin is treated with the zinc and boric acid catalyst at a temperature between 180.degree. C. and 250.degree. C.