CHLOROPRENE RUBBER COMPOSITION, VULCANIZED MOLDED ARTICLE, AND ANTI-VIBRATION RUBBER
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United States of America Patent
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Oct 12, 2017
app pub date -
Oct 28, 2014
filing date -
Oct 28, 2014
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Abstract
Provided is a chloroprene rubber composition giving a vulcanized molded article improved further in heat resistance without deterioration in mechanical properties such as anti-vibration rubber properties, durometer hardness, and elongation at break, a vulcanized molded article prepared and an anti-vibration rubber prepared from the composition. A chloroprene rubber composition, comprising 100 parts by mass of a chloroprene rubber, 0.1 part or more by mass and 10 parts or less by mass of an active zinc white having an average particle diameter of 0.05 μm or more and 0.35 μm or less, a particle diameter range of 0.01 μm or more and 1.0 μm or less and a specific surface area of 10 m2/g or more and 150 m2/g or less, and 15 parts or more by mass and 200 parts or less by mass of a carbon black having an average particle diameter of 70 nm or more and 600 nm or less and a DBP oil absorption number of 15 ml/100 g or more and 60 ml/100 g or less.
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