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. 01, 1981
Filed:
Jun. 04, 1980
Applicant:
Inventors:
Mitchell S Dimitri, Charleston, SC (US);
Carlton G Force, Mount Pleasant, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
260 175 ; 1061 / ; 1061 / ; 260-5 ; 260758 ;
Abstract
Disclosed herein is a tackifying composition for rubber comprising an alkali lignin coprecipitated with a saponified tall oil pitch from an alkaline solution of the lignin and the pitch, the amount of saponified tall oil pitch being from 25% to 75% of the weight of said lignin. When the lignin-saponified pitch composite is added to a raw rubber stock in an amount of from 1 part to 50 parts per 100 parts of raw rubber stock the tack is improved.