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. 21, 1993
Filed:
Apr. 24, 1992
Applicant:
Inventors:
Lawson G Wideman, Tallmadge, OH (US);
Paul H Sandstrom, Tallmadge, OH (US);
Denise J Keith, Akron, OH (US);
Assignee:
The Goodyear Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524275 ; 524271 ; 524272 ; 524273 ; 524274 ; 530210 ; 530215 ;
Abstract
The present invention relates to dicyclopentadiene alcohol resin acid derivatives which are useful as a rubber additive. In one embodiment, the ester linked rosin acid derivative may serve as a total or partial replacement for oil and/or wax. The dicyclopentadiene alcohol rosin acid derivatives are prepared by reacting abietic acid and/or dehydroabietic acid with dicyclopentadiene alcohol under esterification conditions.