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US 12,122,929 B2Granted
Copolymers of perfluorocycloaliphatic methyl vinyl ether
Assignee3M Innovative Properties Company
InventorsMiguel A. Guerra, Tatsuo Fukushi, Bradford L. Ryland
Life of this patent
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Abstract
Described herein is a perfluoropolymer and compositions therefrom. The perfluoropolymer is derived from: (a) no more than 88 mol % tetrafluoroethylene monomer; and (b) a complementary amount of a perfluoro (cycloaliphatic methyl vinyl ether) monomer, and has substantially no melting point.
Claims19
A perfluoropolymer, wherein the perfluoropolymer is derived from at least:
- (a) no more than 88 mol % tetrafluoroethylene monomer;
- and
- (b) a complementary amount of a monomer according to Formula I
- Rf-CF2—[OCF(CF3)CF2]nO—CF═CF2
- wherein Rf is a perfluorinated group comprising 6 carbon atoms and 11 fluorine atoms and a cycloaliphatic group, and n is 0, 1, or 2;
- and
- wherein the perfluoropolymer has substantially no melting point.
4 more elements
A fluoropolymer comprising at least one interpolymerized monomeric unit of
- and combinations thereof wherein x, y, and z are independently at least 2 repeat units, and wherein the polymer has substantially no melting point.
Dependencies are inferred from the claim text.