Rubber powders and methods of producing and using rubber...

Details Rubber powders and methods of producing and using rubber... Rubber powders and methods of producing and using rubber...

C - Chemistry, Metallurgy

08

C

117/46.8

C08C 4/00 (2006.01) C08J 3/12 (2006.01)

Patent

CA 1226178

ABSTRACT OF THE DISCLOSURE Rubber powders comprising unvulcanized rubber particles with an anti-tack agent covering are disclosed. These powders are made directly from rubber and anti-tack agent mixtures by mechanical action at a temperature above the glass transition temperature of the rubber. Typical rubbers used include NR, SBR, EPDM, BR and blends thereof and typical anti-tack agents include carbon black, silica and the like.

430856

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