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:
Jun. 23, 1992
Filed:
Apr. 03, 1990
Applicant:
Inventors:
John M Branan, Jr, Amarillo, TX (US);
Chiung H Shieh, Lexington, MA (US);
Assignee:
Cabot Corporation, Boston, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524496 ; 524495 ; 423445 ;
Abstract
Improved treadwear/hysteresis carbon blacks having a CTAB of 120-160 m.sup.2 /g, a N.sub.2 SA of 125-180 m.sup.2 /g, a CDBP of 95-120 cc/100 g, a DBP of 110-145 cc/100 g, a Tint/CTAB ratio of 0.80-1.10, a .DELTA.D50 of 70-100 nm and a .DELTA.D50/Dmode ratio of 0.80-1.05. Also disclosed are rubber compositions containing the carbon blacks which exhibit superior treadwear/hysteresis performance properties.