Rubber composition for inner liner and tire having inner liner comprising thereof
OwnerTatsuya Miyazakiinventor
Life of this patent
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Abstract
The present invention provides a rubber composition for an inner liner including 21 to 50 parts by weight of (B) carbon black and/or silica and 0.25 to 6 parts by weight of (C) an alkylphenol-sulfur chloride condensate indicated by the formula (C1): (Wherein R1 to R3 are same or different and either is an alkyl group having 5 to 12 carbons; x and y are same or different and either is an integer of 2 to 4; and n is an integer of 0 to 10.), wherein whole sulfur content is 0.3 to 1.5 parts by weight, based on 100 parts by weight of (A) a rubber component including 60 to 100% by weight of a butyl rubber for the purpose of keeping air permeation resistance and improving low heat build-up property and durability.
Claims6
1-3. (canceled)
A rubber composition for an inner liner comprising
- 21 to 50 parts by weight of (B) carbon black and/or silica and
- 0.25 to 6 parts by weight of (C) an alkylphenol-sulfur chloride condensate indicated by the formula (C1):
- (Wherein R1 to R3 are same or different and either is an alkyl group having 5 to 12 carbons;
- x and y are same or different and either is an integer of 2 to 4;
- n is an integer of 0 to 10.), and comprising 0.1 to 0.49 parts by weight of sulfur, wherein whole sulfur content is 0.3 to 1.5 parts by weight,
- based on 100 parts by weight of (A) a rubber component comprising 60 to 100% by weight of a butyl rubber.
Dependencies are inferred from the claim text.