发明名称 |
Polyisocyanate compositions and their use |
摘要 |
This invention relates to polyisocyanate compositions comprising (a) polyisocyanate, and (b) a monomeric carbodiimide. The polyisocyanate compositions are particularly useful in phenolic urethane foundry binder systems. The invention also relates to foundry mixes prepared with (a) a phenolic urethane binder containing the polyisocyanate composition, and (b) a foundry aggregate, as well as foundry shapes prepared by the no-bake and cold-box processes, which are used to make metal castings.
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申请公布号 |
US2003173055(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20020075975 |
申请日期 |
2002.02.14 |
申请人 |
CHEN CHIA-HUNG;KROKER JORG |
发明人 |
CHEN CHIA-HUNG;KROKER JORG |
分类号 |
B22C1/22;B22C9/00;(IPC1-7):B22C1/22 |
主分类号 |
B22C1/22 |
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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