发明名称 |
EPOXY ADHESIVE HAVING IMPROVED IMPACT RESISTANCE |
摘要 |
In the preparation of an improved adhesive composition, an epoxy-based prepolymer is obtained by the reaction of one or more epoxy resins with amino-terminated polyethers and/or carboxyl-terminated butadiene-nitrile rubbers. In one embodiment of the invention, both a solid epoxy resin and a liquid epoxy resin, each of which is a diglycidyl ether of a polyphenol such as bisphenol A, are used. The epoxy-based prepolymer is mixed with an acrylate-terminated urethane resin (preferably, one based on a polyol having a number average molecular weight of at least about 400) and a heat-activated latent curing agent to make an adhesive composition which can be pumpable at room temperature. Curable adhesives capable of expansion to about 100% with high impact resistance after curing may be obtained by inclusion of expanding agents such as expandable microspheres.
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申请公布号 |
WO03078163(A1) |
申请公布日期 |
2003.09.25 |
申请号 |
WO2003US07942 |
申请日期 |
2003.03.13 |
申请人 |
HENKEL KOMMANDITGESELLCHAFT AUF AKTIEN;SCHOENFELD, RAINER;HUBERT, JAMES, F.;ERMAN, MURTEZA |
发明人 |
SCHOENFELD, RAINER;HUBERT, JAMES, F.;ERMAN, MURTEZA |
分类号 |
C08G18/67;C08J9/32;C08L63/00;C08L71/02;C08L75/16;C09J163/00;C09J175/16;(IPC1-7):B32B27/38 |
主分类号 |
C08G18/67 |
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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