Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1987-05-28
1989-10-31
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568103, 568104, 568606, C07L 4311, C07L 4312
Patent
active
048779059
ABSTRACT:
Novel polyether intermediates having the general formula ##STR1## may be prepared by reaction of a fluoroalkene with a polyether of formula ##STR2## and may be fluorinated with elemental fluorine to yield novel perfluoropolyethers having the general formula ##STR3## In the above general formulae, the symbols R.sup.1 to R.sup.5 each represent the same or different substituted or unsubstituted hydrocarbon groups, the symbols R.sub.F.sup.1 to R.sub.F.sup.4 each represent the same or different fluorine-containing hydrocarbon groups with at least two carbon atoms and at least two fluorine atoms, or the combination R.sup.1 - R.sub.F.sup.1 and/or the combination R.sup.5 - R.sub.F.sup.4 represents a fluoroalkyl or fluoroalkenyl group, the symbols R.sup.6 to R.sup.14 each represents a fully fluorinated hydrocarbon group, x is an integer, each of y and z is zero or an integer, and the sum of x, y and z is from 2 to 100.
REFERENCES:
Translation of Japan 101307, supplied previously.
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