发明名称 |
PERFLUORPOLYETHER-OLIGOMERE UND -POLYMERE. |
摘要 |
Perfluoropolyether oligomers or block polymers, having a backbone with one or a plurality of perfluoropolyether segments each consisting essentially of (1) at least one perfluoroisopropyleneoxy unit, (2) a bis(perfluoromethyleneoxy-terminated) unit, and (3) a perfluoroethylidene unit terminating each segment, the backbone of the perfluoropolyether being terminated with COF and/or a functional or nonfunctional derivative thereof, said perfluoropolyethers being made by reacting a perfluoroaliphatic diacid fluoride with hexafluoropropylene epoxide to produce an acid fluoride-terminated perfluoropolyether adduct or oligomer which then can be photopolymerized to yield an acid fluoride-terminated perfluoropolyether block polymer. These oligomers and block polymers are useful as high temperature lubricants, hydraulic fluids, gaskets, adhesives and coatings as well as co-reactants wtih urethane in forming propellant binders. |
申请公布号 |
DE3484737(D1) |
申请公布日期 |
1991.07.25 |
申请号 |
DE19843484737 |
申请日期 |
1984.12.10 |
申请人 |
MINNESOTA MINING & MFG. CO., SAINT PAUL, MINN., US |
发明人 |
SAVU, PATRICIA M. MINNESOTA MINING AND, P.O. BOX 33427 ST. PAUL MINNESOTA 55133, US |
分类号 |
C08G65/26;C07C59/315;C07D239/26;C08G65/22;C08G65/32;C08G65/323;C08G65/331;(IPC1-7):C08G65/00;C08J3/28 |
主分类号 |
C08G65/26 |
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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