Tear propagation-resistant rubber compound

Details Tear propagation-resistant rubber compound Tear propagation-resistant rubber compound

1998-04-24

2000-09-05

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253307, 525193, 525100, 524456, C08F 1416, C08F11416, C08F 800, C08L 8300

Patent

active

061144657

ABSTRACT:
The invention relates to a highly tear propagation-resistant rubber compound, particularly for sealing and expansion bellows, containing an elastomer, fillers and other auxiliaries. In order to achieve high tear-propagation resistance with high imperviousness, dynamic stress resistance and chemical resistance, a rubber compound is proposed which contains polychloroprene as the elastomer and amorphous silica as the filler, and which is obtained by silanising in the presence of the acid acceptor and the silica, prior to adding other additives.

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