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:
Apr. 18, 1989
Filed:
Apr. 13, 1987
Applicant:
Inventors:
Daniel F Graves, Clinton, OH (US);
Hans-Wilhelm Engels, Kerpen, DE;
Assignee:
The Firestone Tire & Rubber & Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08C / ;
U.S. Cl.
CPC ...
524519 ; 152548 ; 152564 ; 524 92 ; 524496 ; 524523 ; 524525 ; 524526 ; 524552 ; 524555 ; 524560 ; 524565 ; 524566 ; 524573 ;
Abstract
It now has been found that uncured rubber composition comprising rubbers having an unsaturated carbon chain and at least one carbon black can be improved by including therein, a minor property-improving amount of at least one aromatic heterocyclic di-N-oxide compound of the partial formula ##STR1## wherein the depicted carbon atoms are part of an optionally substituted aromatic ring, and R.sup.1 and R.sup.2 are each independently hydrogen, hydrocarbyl, halohydrocarbyl, hydrocarbyloxy, hydrocarbyl sulfonyl, hydrocarbyl thio, hydrocarbylsulfoxidyl, halogen, amino,