Rubber composition and racing tire having tread comprising...

Details Rubber composition and racing tire having tread comprising... Rubber composition and racing tire having tread comprising...

2007-06-26

2007-06-26

Teskin, Fred (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S575000, C525S189000, C525S332600, C525S343000, C152S209100, C152S905000

Reexamination Certificate

active

11335543

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 m2/g based on 100 parts by weight of a rubber component comprising a solution polymerization styrene-butadiene rubber satisfying the formula below:in-line-formulae description="In-line Formulae" end="lead"?(Vinyl content)≧100−2×(styrene content),in-line-formulae description="In-line Formulae" end="tail"?30 to 170 parts by weight of a softener and 1 to 30 parts by weight of a compound satisfying the general formula (1):in-line-formulae description="In-line Formulae" end="lead"?—(R—Sx)n—  (1)in-line-formulae description="In-line Formulae" end="tail"?(wherein R isin-line-formulae description="In-line Formulae" end="lead"?—(CH2—CH2—O)m—CH2—CH2—in-line-formulae description="In-line Formulae" end="tail"?, 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.).

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Canning S P American Society for Testing and Materials: “1991 Annual Book of ASTM Standards, vol. 09.01” Rubber, Natural and Synthetic—General Test Methods; Carbon Black, Includes Standards on Following Committees: D11 on Rubber, D 24 on Carbon Black, Annual Book of ASTM Standards, Philadelphia, ASTM, US, vol. 9, p. 317, (1991), XP 002351270.

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