3m Innovative Properties Company

Dyneon Gmbh

Denis Duchesne

Klaus Hintzer

Tatsuo Fukushi

Gregg D Dahlke

Tilman C Zipplies

Harald Kaspar

Zai-Ming Qiu

Kai Helmut Lochhaas

Werner M A Grootaert

Peter J Scott

Larry A Last

Miguel Antonio Guerra

Thomas J Blong

Gernot Loehr

Ludwig Mayer

Ralph Kaulbach

Lisa P Chen

Arne Thaler

Karl D Weilandt

Albert Killich

Claude Lavallée

Jens Schrooten

Friedrich Kloos

Michael H Mitchell

Attila A Molnar

Markus E Hirschberg

Steven Joseph Hamrock

Sean M Smith

Gernot L&ouml;hr

Maria P Dillon

Gernot Löhr

Erik Peters

Per Miles Nelson

Herbert Strasser

Kirsten J Fronek

William M Lamanna

Michael G Costello

Michael Andrew Yandrasits

Edward E Parsonage

Michael J Bulinski

Michael C Dadalas

Luke M B Rodgers

Michael J Parent

Mark W Muggli

Werner M Grootaert

Thorsten Gerdes

Achim Schmidt-Rodenkirchen

Dale E Hutchens

Terri A Shefelbine

Susan S Woods

Konstantin Mierdel

Matthew J Lindell

Werner Ma Grootaert

Miquel A Guerra

Cynthia N Ferguson

Yeng Moua

Muhammad Z Nawaz

Werner MA Grootaert

Claude LAVALÉE

Claude Lavalee

Claude LAVALLÉE

Attila Molnar

Gernot Lohr

The process produces a fluorinated olefin from a fluorinated copolymer having at least one of sulfonic acid groups, carboxylic acid groups, or salts thereof. The process includes heating the fluorinated copolymer at a first temperature not more than 450° C. to decompose at least one of the sulfonic acid groups, carboxylic acid groups, or salts thereof to form a partially pyrolyzed intermediate and subsequently heating the partially pyrolyzed intermediate at a second temperature of at least 550° C. to produce the fluorinated olefin.

Process of making fluoroolefins by thermal decomposition of fluorinated ionomers

The copolymer includes divalent units represented by formula —[CF—CF]—, at least one divalent unit represented by formula (I): and at least one divalent unit independently represented by formula (II): A is —N(RF)or a is non-aromatic, 5- to 8-membered, perfluorinated ring comprising one or two nitrogen atoms in the ring and optionally comprising at least one oxygen atom in the ring, each RFa is independently linear or branched perfluoroalkyl having 1 to 8 carbon atoms and optionally interrupted by at least one catenated O or N atom, each Y is independently —H or —F, with the proviso that one Y may be —CF, h is 0, 1, or 2, each i is independently 2 to 8, and j is 0, 1, or 2. A catalyst ink and polymer electrolyte membrane including the copolymer are also provided.

Fluorinated copolymer and compositions and articles including the same

The copolymer includes divalent units represented by formula &#x2014;[CF&#x2014;CF]&#x2014;, divalent units represented by formula; and one or more divalent units independently represented by formula: The copolymer has an &#x2014;SOX equivalent weight in a range from 300 to 2000. A polymer electrolyte membrane that includes the copolymer and a membrane electrode assembly that includes such a polymer electrolyte membrane are also provided.

Fluorinated copolymer having sulfonyl pendant groups and compositions and articles including the same

The copolymer includes divalent units represented by formula &#x2014;[CF&#x2014;CF]&#x2014;, divalent units represented by formula: (I), and one or more divalent units independently represented by formula: (II) When Z is hydrogen, the copolymer has an alpha transition temperature of up to 100 ?C. The copolymer has an &#x2014;SOZ equivalent weight in a range from 300 to 1400, and a variation of the copolymer in which &#x2014;SOZ is replaced with &#x2014;SOF has a melt flow index of up to 80 grams per ten minutes measured at a temperature of 265&#xb0; C. and at a support weight of 5 kg. A catalyst ink or polymer electrolyte membrane including the copolymer are also provided. 

There is provided a curable composition comprising a fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least a fluorinated monomer; and (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units that comprises at least a fluorinated monomer and a nitrile-containing cure-site monomer.

Fluorinated block copolymers derived from nitrile cure-site monomers

Described herein is a millable fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least TFE, HFP and VDF; (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units derived from at least HFP and VDF; and (c) a bisolefin monomer, wherein at least (i) the semi-crystalline segment of the A block comprises repeating divalent monomeric units derived from TFE, HFP, VDF, and the bisolefin monomer, (ii) the segment of the B block comprises repeating divalent monomeric units derived from HFP, VDF, and the bisolefin monomer, or (iii) a combination thereof; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100&#xb0; C.

Fluorinated block copolymers

A method of making a copolymer is disclosed. The method includes copolymerizing components including tetrafluoroethylene and a compound represented by formula CF&#x2550;CF&#x2014;O&#x2014;(CF)&#x2014;SOX, wherein 'a' is a number from 1 to 4, and X is &#x2014;NZH, &#x2014;NZ&#x2014;SO&#x2014;(CF)&#x2014;SOX', or &#x2014;OZ, wherein Z is independently a hydrogen, an alkali metal cation, or a quaternary ammonium cation, and wherein X&#x2032; is independently &#x2014;NZH or &#x2014;OZ. The components include at least 60 mole % of tetrafluoroethylene based on the total amount of components. A copolymer prepared by the method is also provided. A method of making a membrane using the copolymer is also provided. The present disclosure also provides a polymer electrolyte membrane that includes a copolymer made by the method and a membrane electrode assembly that includes such a polymer electrolyte membrane.

Method of making a copolymer of tetrafluoroethylene having sulfonyl pendant groups

A copolymer having tetrafluoroethylene units and units independently represented by formula (I) in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more &#x2014;0&#x2014; groups, n is independently from 1 to 6, and z is 0, 1, or 2. The copolymer has a melt flow index in a range from 20 grams per 10 minutes to 40 grams per 10 minutes. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed. 

Tetrafluoroethylene and perfluorinated allyl ether copolymers

A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more &#x2014;O&#x2014; groups, n is from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has up to 50 unstable end groups per 10carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed. 

Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups and methods of making and using the same

A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more &#x2014;O&#x2014; groups, z is 1 or 2, each n is independently from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has a combined number of unstable end groups and &#x2014;CFH end groups in a range from 25 per 10carbon atoms up to 120 per 10carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed. 

Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups

A polymer composition includes a non-fluorinated, thermoplastic polymer and a minor amount of a fluoropolymer combined with the non-fluorinated polymer. A polymer processing additive composition that includes a fluoropolymer and a polymer processing additive synergist is also disclosed. The fluoropolymer includes diads represented by formula &#x2014;CF2-CF(R)&#x2014;CH(R')&#x2014;CF(R&#x2033;)&#x2014; in a range from about 23 mole percent to about 50 mole percent. Each R is independently &#x2014;CF, &#x2014;Rf, or &#x2014;ORf, each R&#x2032; and R&#x2033; are independently H, F, CF, or &#x2014;Rf, and each Rf is independently a perfluoroalkyl group having from 1 to 12 carbon atoms and optionally interrupted by one or more &#x2014;O&#x2014; groups. A method of reducing melt defects during the extrusion of a polymer is also disclosed.

Fluoropolymer processing additive, compositions, and methods

A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.001 to 2 mole percent, based on the total amount of the copolymer. In these units, a is 0 or 1, each b is independently from 1 to 4, c is 0 to 4, d is 0 or 1, and e is 1 to 6. In the &#x2014;SOX groups, X is independently &#x2014;F, &#x2014;NH, &#x2014;OH, or &#x2014;OZ, wherein Z is independently a metallic cation or a quaternary ammonium cation. The copolymer has a melt flow index in a range from 20 grams per 10 minutes to 40 grams per 10 minutes. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed. 

Tetrafluoroethylene/hexafluoropropylene copolymers having pendant sulfonyl groups

Described herein is a polymer comprising: interpolymerized units of (i) a fluorinated terminal alkene monomer and (ii) a tertiary amine-containing fluorinated monomer comprising at least one of a vinyl amine, a substituted vinyl amine, an allyl amine, a substituted allyl amine, and combinations thereof; wherein the polymer can be amorphous or semi-crystalline with a melting point no greater than 325&#xb0; C. Dispersions thereof and methods of making and using the same are also described.

Amine-containing polymers, dispersions thereof and methods of making and using the same

A composition of solid particles comprising substantially inorganic, electronically conductive particles and fluoropolymer particles, wherein the fluoropolymer is melt-processable and has a melting point between 100&#xb0; C. and 325&#xb0; C. and a melt flow index at 372&#xb0; C. and at 5 kg load (MFI 372/5) of at least 0.1 and up to 100 g/10 min, and wherein the fluoropolymer particles have a particle size of less than 500 nm and wherein the particles comprising the substantially inorganic, electronically conductive material is present in the form of particles having a particle size of less than 15,000 &#x3bc;m, and methods for producing such compositions and articles containing such compositions.

Conductive fluoropolymer compositions

A copolymer having tetrafluoroethylene units and units independently represented by formula (I) in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more &#x2014;O&#x2014; groups, each n is independently from 1 to 6, m is 0 or 1, and z is 0, 1, or 2. The copolymer has a melt flow index in a range from 20 grams per 10 minutes to 40 grams per 10 minutes and has in a range from 2 to 200 &#x2014;SOX groups per 10carbon atoms and up to 100 unstable end groups per 10carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed. 

Tetrafluoroethylene copolymers having sulfonyl groups

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Woodbury, MN, United States of America

Denis Duchesne