Cross-linking compositions

Details Cross-linking compositions Cross-linking compositions

C - Chemistry, Metallurgy

08

K

C08K 13/08 (2006.01) C08J 3/20 (2006.01) C08K 3/26 (2006.01) C08K 3/36 (2006.01) C08K 5/14 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2291171

This application relates to compositions of cross-linking peroxides which have excellent storage stability, without exudation of peroxide taking place, which contain the organic peroxide in a high concentration, and which are easily blendable with a rubber to be cross-linked. The compositions are obtained by mixing a softening agent with a Brookfield viscosity of 10,000 poises or less at 60 °C with an organic peroxide, preferably in the presence of a filler, and optionally with further ingredients.

Cette application concerne des compositions de péroxydes de réticulation. Ces compositions présentent une excellente stabilité au stockage, sans exsudation de péroxyde, une forte teneur en péroxyde organique, et peuvent être aisément mélangées au caoutchouc pour subir une réticulation. Ces compositions sont obtenues par un mélange d'un plastifiant dont la viscosité Brookfield est inférieure ou égale à 10 000 poises à 60 DEG C, et d'un péroxyde organique, de préférence, en présence d'un agent de remplissage, et éventuellement, d'autres ingrédients.

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