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:
Nov. 12, 1991
Filed:
Jan. 31, 1991
Applicant:
Inventors:
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525237 ; 525 51 ; 525192 ; 525194 ; 525196 ;
Abstract
The present invention relates to an elastomeric composition suitable for tire treads comprising 1) 10-90% wt of a copolymr of a mono-aromatic vinyl compound and a conjugated diene having a vinyl content of .gtoreq.50% wt and a Tg >-35 degree C, and 2) 90-10% wt of a homopolymer of a conjugated diene or a copolymer of a mono-aromatic vinyl compound and a conjugated diene, containing <25% wt of mono-aromatic vinyl compound and having a vinyl content <25% wt and a Tg <-55 degree C, both polymers having a differential content of mono-aromatic vinyl compound which is <5 percentage points.