Sulfur vulcanizable polymer compositions

C - Chemistry – Metallurgy – 08 – F

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402/333, 402/340

C08F 8/34 (2006.01) A61B 19/00 (2006.01) C08C 19/02 (2006.01) C08L 15/00 (2006.01)

Patent

CA 1227597

SULFUR VULCANIZABLE POLYMER COMPOSITIONS Abstract of the Disclosure Sulfur vulcanizable polymer compositions are provided comprising (i) a conjugated diene-unsaturated nitrile copolymer, the carbon-carbon double bond unsaturation of which has been selectively hydrogenated such that the remaining unsaturation is from less than about 1 to about 0.05 mole per cent of the copolymer and (ii) a sulfur vulcanization system. The vulcanizates of the polymer compositions exhibit a good combination of resistance to oils, ozone and elevated temperature aging under oxidizing conditions.

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