发明名称 |
Polyurethane binder compositions |
摘要 |
A foundry binder composition which provides foundry cores and molds of superior hot strength comprises a polyisocyanate, a polyhydroxy component and a catalyst. The polyhydroxy component is an alkoxy modified phenolic resole resin containing at least one alkoxy methylene group for every six phenolic nuclei in the resin.
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申请公布号 |
US4546124(A) |
申请公布日期 |
1985.10.08 |
申请号 |
US19840660170 |
申请日期 |
1984.10.12 |
申请人 |
ACME RESIN CORPORATION |
发明人 |
LAITAR, ROBERT A.;GOMEZ, EDUARDO |
分类号 |
C08G18/00;B22C1/22;C08G8/10;C08G18/54;C09J175/00;C09J175/04;(IPC1-7):C08G18/06 |
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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