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AssigneeCabot Corporation
InventorsKhaled Mahmud, Meng-Jiao Wang, Robert A. Francis, James A. Belmont
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Disclosed are elastomeric compounds including an elastomer and a silicon-treated carbon black, and optionally including a coupling agent. The elastomeric compound exhibits poorer abrasion resistance in the absence of a coupling agent, lower hysteresis at high temperature and comparable or increased hysteresis at low temperature compared to an elastomer containing an untreated carbon black. A variety of elastomers and formulations employing such elastomers are contemplated and disclosed. Elastomeric compounds incorporating an elastomer and an oxidized, silicon-treated carbon black are also disclosed. Also disclosed are methods for preparing elastomers compounded with the treated carbon black.
An elastomeric compound comprising an elastomer and a silicon-treated carbon black, wherein said silicon-treated carbon black imparts to the elastomer poorer abrasion resistance, comparable or higher loss tangent at low temperature and a lower loss tangent at high temperature, compared to an untreated carbon black.
An elastomeric compound comprising an elastomer and silicon-treated carbon black, wherein said elastomer is ethylene propylene diene monomer rubber, poly chloroprene, natural rubber, hydrogenated nitrile butadiene rubber, nitrile butadiene rubber, chlororinated polyethylene, styrene butadiene rubber, butyl rubber, polyacrylic rubber, polyepichlorohydrin, ethylene vinyl acetate or blends of the foregoing.
A method for improving the hysteresis of an elastomeric compound comprising compounding an elastomer with a silicon treated carbon black and optionally a coupling agent, wherein said silicon-treated carbon black imparts to the elastomer poorer abrasion resistance, comparable or higher loss tangent at low temperature and a lower loss tangent at high temperature, compared to an untreated carbon black.
A method of preparing an elastomeric compound, comprising:
Silicon-treated carbon black, which when compounded with an elastomer imparts to the elastomer poorer abrasion resistance, comparable or higher loss tangent at low temperature arid a lower loss tangent at high temperature, compared to an untreated carbon black.
A reinforcing agent, comprising:
An elastomeric compound comprising:
A method of improving cut-chip resistance in an elastomer comprising adding an effective amount of a silicon-treated carbon black to the elastomer.
An elastomeric compound comprising:
A method of improving adhesion of an elastomer to a tire cord comprising adding an effective amount of a silicon-treated carbon black to the elastomer.
A method of increasing electric resistivity in an elastomer comprising adding an effective amount of a silicon-treated carbon black to the elastomer.
A method of lowering spring rates for a given tan δ in an elastomer comprising adding an effective amount of a silicon-treated carbon black to the elastomer.
A method of improving tensile strength, elongation at break, or tear strength in an elastomer comprising adding an effective amount of a silicon-treated carbon black to the elastomer.
A method for increasing the CDBP of carbon black comprising introducing into said carbon black process a silicon containing compound to form a carbon black having silicon-containing regions.
A formulation for making an elastomeric composition comprising an elastomer and a silicon-treated carbon black.
Dependencies are inferred from the claim text.