Hydroxyl group-containing diene rubber

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 19/00 (2006.01) B60C 1/00 (2006.01) C08C 19/20 (2006.01)

Patent

CA 2372507

The invention relates to rubber mixtures containing diene rubbers which contain 0.1 - 2 wt. % primary hydroxyl groups and have a glass transition temperature of -120 to -50 ~C. The invention also relates to mixtures comprising filling materials, optionally other rubbers and rubber adjutants and vulcanizates produced therefrom. The inventive rubber mixtures are suitable for use in the production of fully reinforcing, abrasion-resisting shaped bodies, especially in the production of tyres which exhibit a particularly high degree of anti-skid resistance in wet driving conditions.

L'invention concerne des mélanges de caoutchouc contenant des caoutchoucs diéniques d'une teneur en groupes hydroxyle primaires de 0,1 à 2 % en poids et d'une température de transition vitreuse de -120 à -50 ·C, ainsi que leurs mélanges avec des charges, éventuellement, avec d'autres caoutchoucs et adjuvants de caoutchouc, et les vulcanisats obtenus à partir de ces produits. Les mélanges de caoutchouc selon l'invention sont utilisés pour la fabrication de pièces profilées hautement renforcées, résistant à l'usure, en particulier pour la fabrication de pneumatiques présentant d'excellentes propriétés d'antidérapage dans les conditions humides.

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