发明名称 |
Fire retardant coating system utilizing polyurethane hydrogel |
摘要 |
A fire-retardant protective coating is produced by dissolving a water-soluble polyisocyanate prepolymer in either an aqueous slurry or solution of fire-retardant materials and/or intumescent materials. After mixing, the gel produced can be applied as a coating which is useful for protecting or holding together surfaces vulnerable to fire, heat, air or minor abrasion. After the water evaporates, the cross-linked polyurethane coating has a large solids content of the fire-retardant and/or intumescent materials uniformly dispersed throughout. Preferred prepolymers are liquid with a molecular weight greater than about 2,000 and are made of a random copolymer of ethylene oxide and other alkylene oxides with isocyanate capping.
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申请公布号 |
US4246146(A) |
申请公布日期 |
1981.01.20 |
申请号 |
US19790018974 |
申请日期 |
1979.03.09 |
申请人 |
W. R. GRACE & CO. |
发明人 |
WOOD, LOUIS L.;FULMER, GLENN E. |
分类号 |
C08K5/00;C08G18/00;C08G18/48;C08K5/17;C08L1/00;C08L7/00;C08L21/00;C08L23/00;C08L27/00;C08L67/00;C08L75/00;C08L77/00;C08L101/00;C09D5/18;C09D175/08;(IPC1-7):C08L1/02;C08L75/08 |
主分类号 |
C08K5/00 |
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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