发明名称 |
CHLORINATED VINYL CHLORIDE RESIN COMPOSITION |
摘要 |
2 to 30 parts by weight of a core/shell graft copolymer is compounded as an impact modifier with 98 to 70 parts by weight of a chlorinated vinyl chloride resin to give a chlorinated vinyl chloride resin composition having excellent impact resistance and more improved transparency. The core/shell graft copolymer is obtained by graft-polymerizing at least one monomer selected among alkyl methacrylates in which each alkyl has 1 to 4 carbon atoms, alkyl acrylates in which each alkyl has 1 to 8 carbon atoms, acrylonitrile, and styrene compounds in one or more steps onto cores made of a copolymer obtained from 30 to 80 wt.% of 1,3-butadiene and 70 to 20 wt.% of at least one vinyl monomer selected among styrene compounds and alkyl (meth)acrylates. The core/shell copolymer satisfies the following requirements (1) and (2): A-B >/= -0.005; 1.542 </= B </= 1.565; wherein A is the refractive index of the cores and B is the refractive index of the core/shell graft copolymer.
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申请公布号 |
WO9903925(A1) |
申请公布日期 |
1999.01.28 |
申请号 |
WO1998JP03104 |
申请日期 |
1998.07.10 |
申请人 |
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA;SAKABE, HIROSHI;HOSOKAWA, TOSHIO;HAGIWARA, HIROSHI |
发明人 |
SAKABE, HIROSHI;HOSOKAWA, TOSHIO;HAGIWARA, HIROSHI |
分类号 |
C08L27/24;C08L51/00;(IPC1-7):C08L27/24 |
主分类号 |
C08L27/24 |
代理机构 |
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