Nitrile rubber/vinyl chloride polymer/silica compositions
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United States of America Patent
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Sep 11, 1990
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N/A
app pub date -
Jun 7, 1989
filing date -
Jun 7, 1989
priority date (Note) -
Expired
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Abstract
The present invention provides a silica filled composition which contains vinyl chloride polymer and a nitrile rubber. The silica is characterized by being coated with a polymer which is prepared by the free radical emulsion polymerization of acrylate monomer. The compositions of the present invention have a good balance of physical properties and outstanding resistance to crack growth and hence are suitable for the manufacture of mechanical goods.
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