发明名称 |
Process for preparing a urethane coating comprising freezing a premix of an isocyanate and a polyol in a solvent |
摘要 |
A frozen urethane premix coating material is prepared by mixing together an isocyanate, a hydroxy terminated aliphatic polyol, and an organic solvent in an amount of at least 75 percent by weight of the total weight of the premix, and then freezing the mixture. The storage life of the mixture is several months, after which it is thawed and used as a coating material. In one form, the premix includes 4,4'-diphenyl methane diisocyanate as the isocyanate and a mixture of toluene and methyl ethyl ketone as the solvent.
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申请公布号 |
US4788270(A) |
申请公布日期 |
1988.11.29 |
申请号 |
US19870058476 |
申请日期 |
1987.06.05 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
ANDERSON, EDWARD A.;MICULS, IVARS;TOMIKAWA, KOJI |
分类号 |
C08G18/08;H05K3/28;(IPC1-7):C08G18/32;C08F6/00;C08G18/34;C08K5/06 |
主分类号 |
C08G18/08 |
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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