Nitrile rubber composition, highly saturated nitrile rubber latex composition, and crosslinked rubber
2015
The present invention provides a nitrile rubber composition which contains: (A) a highly saturated nitrile rubber in which the content of α,β-ethylenically unsaturated nitrile monomer units is 8-60 wt.% and the iodine value is 120 or lower; and (B) an alkylated phenol compound. The content of the alkylated phenol compound (B) is 0.01-1 wt.% relative to the total content of the highly saturated nitrile rubber (A) and the alkylated phenol compound (B). The nitrile rubber composition is characterized in that the difference between the plasticity number η2 after being stored for seven days at 70oC in the form of an aqueous dispersion obtained by dispersing the composition in water and the plasticity number η1 prior to storage (η2-η1) is 12 or lower.
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