发明名称 |
Cured polyester plastic compositions derived from recycled polyurethanes |
摘要 |
<p>Cured, thermoset plastic articles derived from scrap polyehter-based polyurethanes are obtained by converting the polyurethane to a liquified mixture containing digested polyurethane and cyclic, unsaturated anhydride. A Lewis acid then catalyzes insertion of the cyclic, unsaturated anhydride into the polyether backbone of the polyurethane to give a liquid, unsaturated resin. The unsaturated resin can be cured with a vinyl monomer in the presence of a free-radical initiator to give a cured, thermoset plastic.</p> |
申请公布号 |
EP0633285(B1) |
申请公布日期 |
1997.09.03 |
申请号 |
EP19940304937 |
申请日期 |
1994.07.05 |
申请人 |
ARCO CHEMICAL TECHNOLOGY, L.P. |
发明人 |
YANG, LAU S.;KOOKER, DIANE A. |
分类号 |
C08F290/00;C08F290/14;C08G18/83;C08G63/676;C08J11/26;(IPC1-7):C08J11/26 |
主分类号 |
C08F290/00 |
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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