发明名称 |
Impact resistant acrylic sheet. |
摘要 |
<p>A cast acrylic sheet of RV at least 1.0 dl/g containing at least 0.25% but less than 4% by weight of the cast sheet of a multi-stage, emulsion polymerised, acrylic additive comprising at least two stages wherein the final stage is a polymer of glass transition temperature (Tg) of at least 25 DEG C formed from monomers containing at least 50% by weight of methyl methacrylate which final stage is formed by polymerising the final stage in an emulsion polymerisation process in the presence of a preformed polymer which contains at least one rubbery stage having a Tg less than 25 DEG C prepared by polymerising at least 50% by weight of a C1 to C8 alkyl acrylate, and at least 0.05% by weight of a cross-linking agent or graft linking agent.</p> |
申请公布号 |
EP0297706(A2) |
申请公布日期 |
1989.01.04 |
申请号 |
EP19880304223 |
申请日期 |
1988.05.10 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BROWN, DAVID THOMAS;WOOD, RICHARD |
分类号 |
C08J5/18;C08F2/00;C08F2/02;C08F2/22;C08F20/00;C08F20/12;C08F285/00 |
主分类号 |
C08J5/18 |
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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