Non-agglomerating elastomeric particles

Details Non-agglomerating elastomeric particles Non-agglomerating elastomeric particles

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) C08J 3/12 (2006.01)

Patent

CA 2196507

Elastomeric particles, which have a tendency to agglomerate, are rendered non-agglomerating by contacting those particles with an aqueous solution or dispersion of a polyurethane rubber, a high Mooney viscosity, high gel content rubber and/or a soap, and optionally a polar binder, separating the coated elastomeric particles from the solution or dispersion, and then drying the elastomeric particles while keeping the coated particles in motion.

Des particules élastomères ayant tendance à s'agglomérer sont rendues non agglomérantes en les mettant en contact avec une solution ou une dispersion aqueuses d'un caoutchouc de polyuréthane, un caoutchouc à haute teneur en gel possédant une plasticité Mooney élevée et (ou) un savon, et, facultativement, un liant polaire séparant les particules élastomères ainsi revêtues, de la solution ou de la dispersion, puis en faisant sécher les particules élastomères tout en gardant en mouvement les particules revêtues.

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