Polyurethanes containing poly(perfluoroalkylene oxides) units

Details Polyurethanes containing poly(perfluoroalkylene oxides) units Polyurethanes containing poly(perfluoroalkylene oxides) units

1973-10-03

1976-08-03

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

44 4, 44 7D, 260 775AM, 260 775AQ, C08G 1830, C08G 1848

Patent

active

039728560

ABSTRACT:
Low temperature flexible fluorine-containing, elastomeric polyurethane containing poly(perfluoroalkylene oxide) units, --CF.sub.2 O--(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n --CF.sub.2 --, are prepared, for example, by reacting hydroxy-terminated poly(perfluoroalkylene oxide) with polyisocyanate, said polyurethane being useful in the shape of a seal or gasket or useful as a structural adhesive or a solid propellant binder.

REFERENCES:
patent: 3810874 (1974-05-01), Mitsch et al.

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