Nitrile rubber composition, vulcanizable nitrile rubber...

Details Nitrile rubber composition, vulcanizable nitrile rubber... Nitrile rubber composition, vulcanizable nitrile rubber...

2005-08-23

2005-08-23

Wu, David W. (Department: 1713)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S432000, C524S451000, C524S492000, C524S571000, C524S572000, C524S493000

Reexamination Certificate

active

06933339

ABSTRACT:
A vulcanizable nitrile rubber composition comprising 100 parts by weight of a nitrile rubber, 0.1 to 20 parts by weight of a metal silicate and 0.1 to 10 parts by weight of a vulcanizing agent. Vulcanization of this vulcanizable rubber composition gives a vulcanizate exhibiting enhanced heating aging resistance when it is kept in a hot air atmosphere, especially at a high temperature.

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European Office Action dated Nov. 30, 2004.

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