Abstract: Copolymers containing at least one perfluoropolyether segment and multiple aminooxalylamino groups are described. Methods of making the copolymers are also described. The copolymers can be prepared by reacting an oxalylamino-containing compound and an amine compound having at least two primary amino groups, at least two secondary amino groups, or at least one primary amino group plus at least one secondary amino group.

Abstract: Described herein is a melt-processible polymer composition comprising: a non-fluorinated melt-processible polymer; and a fluoropolymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of: (a) CX1X3?CX2—(R)p—CZ1Z2—SO2M Formula (I) (b) Formula (II); and (c) combinations thereof, wherein X1, X2, and X3 are each independently selected from H, F, Cl, a C1 to C4 alkyl group, and a C1 to C4 fluorinated alkyl group; R is a linking group; Z1 and Z2 are independently selected from F, CF3, and a perfluoroalkyl group; R1 and R2 are end-groups; p is 0 or 1; m is at least 2; and M is a cation.

Abstract: Copolymers containing at least one perfluoropolyether segment and multiple aminooxalylamino groups are described. Methods of making the copolymers are also described. The copolymers can be prepared by reacting an oxalylamino-containing compound and an amine compound having at least two primary amino groups, at least two secondary amino groups, or at least one primary amino group plus at least one secondary amino group.

Abstract: Compounds containing at least one perfluoropolyether segment and at least two oxalylamino groups as well as methods of making these compounds are described. The compounds can be polymeric materials or can be used in the preparation of various copolymeric materials by reaction with compounds having at least two primary or secondary amino groups.

Abstract: There is provided a process for preparing a perfluorovinyl ether sulfinate, comprising: a) providing a perfluorovinyl ether sulfonyl halide; and (b) reducing the perfluorovinyl ether sulfonyl halide with a reducing agent in an organic protic solvent.

Abstract: Described herein is an oligomer according to formula I: (I) wherein Y is an anionic group selected from the group consisting of: sulfates, carboxylates, phosphate, phosphonate, and sulfonate, wherein each X1, X2, and X3 are independently selected from F, Cl, H, and CF3; R is a linking group; each Z1 and Z2 is independently selected from F and CF3; m is at least 2; and R1 and R2 are end groups, wherein the oligomer comprises substantially no pendant functional groups, except those selected from the group consisting of: sulfates, carboxylates, phosphate, phosphonate, and sulfonate.

Abstract: A method for preparing fluorinated carboxylic acids and theirs salts is described comprising subjecting a fluorinated to at least one first and at least one second oxidizing agent to produce a highly fluorinated carboxylic acid or their salts. The first oxidizing agent is a compound that can be converted, by action of the second oxidizing agent, into a reactive species capable of oxidizing the fluorinated alcohol.

Abstract: There is provided a curable composition comprising: a) fluoropolyethers having a molecular weight of from about 400 g/mole up to about 20,000 g/mole and containing moieties selected from (—(CF2)4O—), (—(CF2)2O—), (—CF2O—) or combinations thereof and further containing at least one nitrile group at a terminal position or at a position that is adjacent to the terminal position; and b) one or more curing agents selected from non-fluorinated compounds containing one or more functional group linked to a common residue, said residue containing at least three carbon atoms wherein the functional groups are selected from primary amines, secondary amines and functional groups that generate primary or secondary amines upon heat treatment, wherein the composition can be cured by generating groups having a triazine structure. Also provided are cured composition, methods of making cured compositions, articles made by curing the cured compositions and methods of making articles using the curable composition.

Abstract: A curable composition is provided. The curable composition has at least one functionalized fluoropolyether and at least one radical curing system. Further provided are fluoroelastomer compositions having a glass transition temperature of less than ?40° C. and shaped articles comprising fluoroelastomers having glass transition temperatures of less than ?40° C. obtained by curing the curable compositions. Also described are methods of making fluoroelastomer compositions having glass transition temperatures of less than ?40° C.

Abstract: Compounds represented by formula (Rf-Q-X)s—Z. Each Rf is independently a partially fluorinated or fully fluorinated group selected from Rfa-(O)r—CHF—(CF2)n—; [Rfb-(O)tC(L)H—CF2—O]m—W—; CF3CFH—O—(CF2)p—; CF3—(O—CF2)z—; and CF3—O—(CF2)3—O—CF2—. Methods of reducing surface tension of a liquid, making foams, and treating a surface using the compounds are also disclosed.

Abstract: There are provided microemulsions derived from compositions containing oligomeric fluorosulfinic compounds and/or ethylenically unsaturated, polymerizable monomeric fluorosulfinic compounds and to their uses in (co)polymerization processes in aqueous emulsion of fluorinated monomers.

Abstract: Described herein is a composition comprising a fluorinated polysulfinic acid or a salt thereof having the following formula (I): wherein X1, X2, and X3 are independently selected from H, F, CI, Br, I, CF3, and CH3 and wherein at least one of X1, X2, or X3 is H; R1 is a linking group; Z1 and Z2 are independently selected from Br, CI, I, F, CF3, and a perfluorinated alkyl group; M is a cation; p is 0 or 1; and n is at least 2. Also described is a method of making the partially fluorinated polysulfinic acid or salt thereof.

Abstract: There is provided oligomers comprising a highly fluorinated sulfinate oligomers.

Abstract: There is provided a process for preparing a perfluorovinyl ether sulfinate, comprising: a) providing a perfluorovinyl ether sulfonyl halide; and (b) reducing the perfluorovinyl ether sulfonyl halide with a reducing agent in an organic protic solvent.

Abstract: Copolymers containing at least one perfluoropolyether segment and at least one polydiorganosiloxane segments are described. The copolymers further contain multiple aminooxalylamino groups that link the various segments together. Methods of making the copolymers are also described.

Abstract: Described herein is a composition according to formula I or its precursor, formula II: CX1X3?CX2—(R1)p—CZ1Z2-SO2M (I) wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3 and CH3, and wherein at least one of X1, X2, or X3 is a H; R1 is a linking group; Z1 and Z2 are independently selected from F, Cl, Br, I, CF3, and a perfluoroalkyl group; p is 0 or 1; and M is a cation; and CX4X1X3—CX5X2—(R1)p—CZ1Z2-SO2M (II) wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3 and CH3, wherein at least one of X1, X2, or X3 is a H, and X4 and X5 are independently selected from H, F, Cl, Br and I; R1 is a linking group; Z1 and Z2 are independently selected from F, Cl, Br, I, CF3, and a perfluoroalkyl group, p is 0 or 1; and M is selected from F, and a cation.

Abstract: Described herein is a composition having a fluoropolymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of Formula (I), Formula (II); and combinations thereof, wherein X1, X2, and X3 are each independently selected from H, F, Cl, a C1 to C4 alkyl group, and a C1 to C4 fluorinated alkyl group; R is a linking group; Z1 and Z2 are independently selected from F, CF3, and a perfluoroalkyl group; R1 and R2 are end-groups; p is 0 or 1; m is at least 1; and M is a cation. Also disclosed are methods of making and articles thereof.

Abstract: A composition including at least one first divalent unit represented by formula: Each Rf is independently selected from the group consisting of Rfa—(O)t—CHF—(CF2)n—; [Rfa—(O)t—C(L)H—CF2—O]m—W—; Rfb-O—(CF2)p-; F(CkF2k)—(O—CkF2k)P—O—CF2—; and CF3—O—(CF2)3—(OCF(CF3)—CF2)Z—O-L1-. Each Q is independently selected from the group consisting of a bond, —C(O)—N(R1)—, and —C(O)—O—. Each X is independently selected from the group consisting of alkylene and arylalkylene, wherein alkylene and arylalkylene are each optionally interrupted by at least one ether linkage and optionally terminated by —N(R1)—C(O)— or —O—C(O)—. R and R1 are each independently selected from the group consisting of hydrogen and alkyl having from 1 to 4 carbon atoms. Rfa represents a partially or fully fluorinated alkyl group having from 1 to 10 carbon atoms and optionally interrupted with at least one oxygen atom. Rfb is selected from the group consisting of CF3CFH— and F(CjF2j)-.

Abstract: A curable adhesive composition is disclosed comprising: at least one free radically polymerizable oligomer component; optionally at least one diluent monomer; at least one perfluorinated ether monomer; and a photoinitiator. The curable liquid adhesive is easily removable with low force and low adhesive transfer.

Abstract: Compounds containing at least one perfluoropolyether segment and at least two oxalylamino groups as well as methods of making these compounds are described. The compounds can be polymeric materials or can be used in the preparation of various copolymeric materials by reaction with compounds having at least two primary or secondary amino groups.