Improved processability of silica-reinforced rubber...

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 3/00 (2006.01) B60C 1/00 (2006.01) B60C 15/06 (2006.01) C08J 3/24 (2006.01) C08K 3/36 (2006.01) C08K 5/00 (2006.01) C08K 5/20 (2006.01) C08K 5/5419 (2006.01) C08L 9/06 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2408824

The invention provides an amide compound as a processing aid to improve the dispersion of silica reinforcing filler in a rubber composition, while reducing or eliminating the use of expensive bifunctional silica coupling agents. The invention further provides a vulcanizable elastomeric composition and vulcanized elastomeric products, especially pneumatic tires that exhibit decreased rolling resistance, hysteresis, and improved snow, ice, and wet traction.

La présente invention concerne un composé amide en tant qu'agent de traitement en vue d'améliorer la dispersion d'une charge de renforcement à base de silice dans une composition de caoutchouc, tout en réduisant l'utilisation d'agents bifonctionnels de couplage à base de silice coûteux. L'invention concerne également une composition d'élastomère vulcanisable et des produits en élastomère vulcanisé, notamment des pneumatiques présentant un résistance au roulement, une hystérèse, et une traction dans la neige, la glace et l'eau améliorées.

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