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:
Aug. 17, 1993
Filed:
Nov. 18, 1991
Applicant:
Inventor:
Ted W Bush, Carlisle, MA (US);
Assignee:
Cabot Corporation, Boston, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ;
U.S. Cl.
CPC ...
524495 ; 4234491 ;
Abstract
Novel carbon blacks having an I.sub.2 No. of 48-58 mg/g; a CTAB of 45-55 m.sup.2 /g; a Tint of 65-75%; a CDBP of 90-100 cc/100 g; and a DBP of 122-132 cc/100 g particularly well suited for use in the production of rubber compositions having reduced extrusion shrinkage properties. Also disclosed are rubber compositions containing the novel carbon blacks.