Butyl rubber compounds comprising a three component mixed...

C - Chemistry – Metallurgy – 08 – L

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Details

C08L 23/28 (2006.01) C08J 3/20 (2006.01) C08K 3/36 (2006.01) C08K 5/17 (2006.01) C08K 5/50 (2006.01) C08K 5/548 (2006.01) C08K 13/02 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2701951

Rubber compounds containing a halobutyl elastomer, at least one additional elastomer, a mineral filler and at least a three component mixed modifier system comprising a silane compound, a phosphine compound and an additive containing at least one hydroxyl group and a functional group containing a basic amine. A process for preparing the compounds is also disclosed. The compounds are particularly useful in tire treads and exhibit improved processability, traction, rolling resistance and wear properties.

Les composés de caoutchouc décrits dans cette invention contiennent un élastomère halogénobutyle, au moins un autre élastomère, une charge minérale et au moins un système modificateur mixte à trois composants comprenant un composé de silane, un composé de phosphine et un additif contenant au moins un groupe hydroxyle et un groupe fonctionnel contenant une amine basique. Un procédé de préparation desdits composés est également décrit. Les composés de l'invention sont particulièrement utiles dans les bandes de roulement de pneus et manifestent une usinabilité, une résistance à la traction et au roulement et des propriétés d'usure améliorées.

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