Perfluoropolyether oligomers and polymers

Details Perfluoropolyether oligomers and polymers Perfluoropolyether oligomers and polymers

1984-01-20

1987-03-03

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

558444, 260544Y, 558445, 558447, 540596, 562452, 562463, 548950, 562470, 562567, 560 45, 562577, 562582, 560 53, 564160, 564165, 560 60, 564169, 564170, 560111, 548962, 564194, 560170, 564199, 564200, 560174, 564201, 564202, 560180, 568308, 568336, 560184, 568413, 568416, 560223, 568607, 568615, 560264, 560356, 528402, 544182, 544216, 546262, 546275, 546281, 546314, 548406, 548518, 548565, 548571, 556413, 556414, 556416, 556417, 556419, 558389, 558440, 558441, 564193, C07C 5350, C07C 4311, C08G 5900

Patent

active

046474137

ABSTRACT:
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.

REFERENCES:
patent: 2717871 (1955-09-01), Scholberg et al.
patent: 3125599 (1964-03-01), Warnell
patent: 3250807 (1966-05-01), Fritz et al.
patent: 3250808 (1966-05-01), Moore et al.
patent: 3392097 (1968-07-01), Gozzo et al.
patent: 3442942 (1969-05-01), Sianesi et al.
patent: 3505411 (1970-04-01), Rice
patent: 3637842 (1972-01-01), Stump et al.
patent: 3660315 (1972-05-01), Hill et al.
patent: 3699145 (1972-10-01), Sianesi et al.
patent: 3715378 (1973-02-01), Sianesi et al.
patent: 3810875 (1974-05-01), Rice et al.
patent: 3845051 (1974-10-01), Zollinger
patent: 3849504 (1974-11-01), Mitsch
patent: 3950588 (1976-04-01), McDougal
patent: 3972856 (1976-08-01), Mitsch et al.
patent: 4094911 (1978-06-01), Mitsch et al.
patent: 4239828 (1980-12-01), Knope et al.
Hackh's Chemical Dictionary 4th Ed. (1969) McGraw-Hill Publ. p. 203.
College Dictionary (1973) Random House, Publ. at p. 692.
G. Caporiccio et al., Ind. Eng. Chem. Prod. Res. Dev. 1982, 21, 515-519.
J. F. Harris, Jr., J. Org. Chem. 30, 2182 (1965).
R. A. Mitsch, J. Org. Chem. 35, 2816 (1970).

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