发明名称 |
IMPACT RESISTANT RIGID PVC COMPOSITIONS USING HYDROCARBON RUBBERS AND CHLORINATED POLYETHYLENE AS IMPACT MODIFIERS |
摘要 |
The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a) a vinyl chloride polymer, b) at least one ethylene/alpha-olefin copolymer, said copolymer having a density of 0.858 to 0.91 g/cc and having a melt index from an I10 value of 0.1 to an I2 value of 10, and c) at least one randomly chlorinated olefin polymer having a chlorine content of from 20-40 percent by weight, the feedstock for said chlorinated olefin polymer having a melt index from an I10 value of 0.1 to an I2 value of 10. Optionally, these impact resistant polyvinyl chloride compositions may have inorganic filler levels from 5 to 50 parts per hundred relative to the polyvinyl chloride polymer. |
申请公布号 |
CA2457886(C) |
申请公布日期 |
2011.07.12 |
申请号 |
CA20022457886 |
申请日期 |
2002.08.23 |
申请人 |
DUPONT DOW ELASTOMERS L.L.C. |
发明人 |
MARCHAND, GARY ROBERT;BERARD, MARK THOMAS |
分类号 |
C08L27/06;C08K3/26;C08L23/00;C08L23/04;C08L23/08;C08L23/28 |
主分类号 |
C08L27/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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