Rubber composition and method of making same

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 5/38 (2006.01) C08K 9/04 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2389431

Process of producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises mixing a composition comprising unvulcanized rubber, carbon black and xanthogen polysulfide at an elevated temperature in a non-productive stage and composition suitable for producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises unvulcanized rubber, a filler comprising carbon black and xanthogen polysulfide.

L'invention concerne un procédé de production de caoutchouc non vulcanisé permettant de fabriquer du caoutchouc vulcanisé avec une meilleure hystérésis. Ce procédé consiste à mélanger une composition comprenant du caoutchouc non vulcanisé, du noir de carbone et du polysulfide de xanthogène à une température élevée dans une étape non productive avec une composition appropriée pour produire du caoutchouc non vulcanisé, permettant de produire du caoutchouc vulcanisé avec une meilleure hystérésis et comprenant du caoutchouc non vulcanisé, un agent de remplissage à base de noire de carbone et de polysulfide de xanthogène.

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