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US 5,852,148 AGranted
Perfluoroalkyl halides and derivatives
AssigneeMinnesota Mining and Manufacturing Company
InventorsFrederick E. Behr, Rudolf J. Dams, Johan E. DeWitte, Donald F. Hagen
Life of this patent
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Abstract
Novel mixtures of perfluoroalkyl halides and derivatives thereof are described. These mixtures contain some compounds with a straight perfluoroalkyl group and some with a branched perfluoroalkyl group. Methods of preparation and use are also described.
Claims42
A method for treating a substrate, comprising the steps of:
- providing a substrate;
- providing a polymer comprising a plurality of pendant saturated perfluoroalkyl groups, wherein some of said perfluoroalkyl groups are straight chain and some are branched chain;
- and
- applying the polymer to the substrate;
- wherein about 65 to about 85% of the perfluoroalkyl groups are straight chain and about 15 to about 35% of the perfluoroalkyl groups are branched chain.
2 more elements
A method for treating a substrate, comprising the steps of:
- providing at least one monomer of the formula R.sub.fsb --(Z), wherein Z is a polymerizable moiety, wherein R.sub.fsb represents a plurality of perfluoroalkyl groups pendant from Z, and wherein some of said perfluoroalkyl groups are straight chain and some are branched chain;
- providing a substrate;
- applying the at least one monomer to the substrate;
- and
- polymerizing the monomer on the substrate to produce a polymer.
2 more elements
A method for making a polymer, comprising the steps of:
- providing first and second monomers, wherein the first monomer comprises a straight chain perfluoroalkyl group, and wherein the second monomer comprises a branched chain perfluoroalkyl group;
- and
- copolymerizing the first and second monomers to produce a copolymer having both branched and straight chain perfluoroalkyl groups.
A method for making a polymer, comprising the steps of:
- providing a monomer containing both branched and straight chain perfluoroalkyl groups;
- and
- polymerizing the monomer to produce a polymer having both branched and straight chain perfluoroalkyl groups.
Dependencies are inferred from the claim text.