发明名称 |
Fire-fighting foam compositions |
摘要 |
A method of fighting fires which comprises applying to the fire a foam produced from an aqueous composition comprising as a surface-active agent the residue of a branched oligomer of tetrafluoroethylene (C2F4)n wherein n is 4, 5, or 6 having a hydrophilic group attached to the residue of the oligomer, said oligomer having at least three CF3 groups and being characterized by a formula selected from the group consisting of: <IMAGE> <IMAGE> <IMAGE> and <IMAGE> The surfactants are particularly effective when incorporated in foams derived from other foam-producing materials.
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申请公布号 |
US4020903(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19760667013 |
申请日期 |
1976.03.15 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES LIMITED |
发明人 |
FIELDING, HAROLD CROSBIE;HUTCHINSON, JOHN;WEBSTER, SAMUEL JOHN |
分类号 |
A62D1/02;(IPC1-7):A62B1/12 |
主分类号 |
A62D1/02 |
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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