Fibrillated ptfe modified rubber

Details Fibrillated ptfe modified rubber Fibrillated ptfe modified rubber

C - Chemistry, Metallurgy

08

L

C08L 9/00 (2006.01)

Patent

CA 2062997

ABSTRACT OF THE DISCLOSURE Low strain modulus of a sulfur cured rubber is improved by incorporating a fibrillated polytetrafluoroethylene (PTFE) into uncured rubber. Other compounding ingredients may be conventional and in conventional amounts. The amount of fibrillated PTFE is typically from about 0.5 to about 8 phr; the amount required will vary from grade to grade of PTFE. The resulting vulcanized rubber is particularly useful as a tire tread stock, the vulcanized rubber has a higher low strain modulus (e.g., modulus taken at either 50% or 100% elongation) than does otherwise similar rubber containing no PTFE.

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