Tire and tread comprising a bis-alkoxysilane tetrasulfide as...

Details Tire and tread comprising a bis-alkoxysilane tetrasulfide as... Tire and tread comprising a bis-alkoxysilane tetrasulfide as...

2007-05-15

2007-05-15

Mulcahy, Peter D. (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...

Reexamination Certificate

active

10681894

ABSTRACT:
A tire or tire tread incorporating an elastomeric composition having improved vulcanization kinetics, based on at least a diene elastomer, a reinforcing inorganic filler and, as (inorganic filler/elastomer) coupling agent, a bis-alkoxysilane tetrasulfide of the formula:in which:the symbols R1, which may be identical or different, each represent a monovalent hydrocarbon group selected from among the group consisting of alkyls, whether straight-chain or branched, having from 1 to 4 carbon atoms, and alkoxyalkyls, whether straight-chain or branched, having from 2 to 8 carbon atoms;R2and R3, which may be identical or different, each represent a monovalent hydrocarbon group selected from among the group consisting of alkyls, whether straight-chain or branched, having from 1 to 6 carbon atoms, and the phenyl radical; andx is between about 3 and about 5.

REFERENCES:
patent: 3873489 (1975-03-01), Thurn et al.
patent: 5650457 (1997-07-01), Scholl et al.

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