发明名称 |
RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES |
摘要 |
<p>RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES (D#75, 797-F) The invention covers a method for making reaction injection molded polyurethanes of improved properties. The elastomeric products having superior heat distortion and tear properties comprise the reaction product of an aromatic polyisocyanate, a high molecular weight polyol and a chain extending agent. Said polyol providing said improved properties is a poly(oxybutyleneoxyethylene) glycol having a molecular weight range of about 2,000-6,000. The polyurethane elastomer is prepared by injecting the above three agents through a RIM head into a mold cavity of the desired configuration. Reaction injection molded elastomers are useful as molded articles of commerce including, but not limited to, vehicle body parts. -I-</p> |
申请公布号 |
CA1171622(A) |
申请公布日期 |
1984.07.31 |
申请号 |
CA19810382332 |
申请日期 |
1981.07.23 |
申请人 |
TEXACO DEVELOPMENT CORPORATION |
发明人 |
CUSCURIDA, MICHAEL;DOMINGUEZ, RICHARD J.G.;RICE, DORIS M. |
分类号 |
C08G18/00;C08G18/48;C08G18/65;C08G18/66;(IPC1-7):B29F1/00 |
主分类号 |
C08G18/00 |
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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