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. 26, 2007
Filed:
Jan. 20, 2006
Tetsuya Kunisawa, Kobe, JP;
Toshiro Matsuo, Kobe, JP;
Tetsuya Kunisawa, Kobe, JP;
Toshiro Matsuo, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Abstract
There is provided a racing tire improving grip performance, processability and rubber strength at a high temperature in highly good balance and a rubber composition capable of producing a tread having thereof. A rubber composition comprising 70 to 150 parts by weight of carbon black with a nitrogen adsorption specific area of 100 to 300 m/g based on 100 parts by weight of a rubber component comprising a solution polymerization styrene-butadiene rubber satisfying the formula below:(Vinyl content)≧100−2×(styrene content),30 to 170 parts by weight of a softener and 1 to 30 parts by weight of a compound satisfying the general formula (1):—(R—S)—  (1)(wherein R is—(CH—CH—O)—CH—CH—, x is an integer of 3 to 6, n is an integer of 10 to 400 and m represents an integer of 2 to 5.).