3m Innovative Properties Company

Hoechst Aktiengesellschaft

Dyneon Gmbh

Other

The South African Nuclear Energy Corporation Limited

3m Innovation Properties Company

Hoechst Aktiengelselschaft

Klaus Hintzer

Tilman C Zipplies

Harald Kaspar

Kai Helmut Lochhaas

Werner Schwertfeger

Michael C Dadalas

Werner M A Grootaert

Robert E Kolb

Denis Duchesne

Andreas R Maurer

Michael Jürgens

Markus E Hirschberg

Tatsuo Fukushi

Ludwig Mayer

Gernot L&ouml;hr

Arne Thaler

Oleg Shyshkov

Herbert Koenigsmann

Lisa P Chen

Gernot Loehr

Helmut Traunspurger

Florian D Jochum

Zai-Ming Qiu

George G I Moore

Miguel Antonio Guerra

Peter J Scott

Gernot Löhr

Bernhard Hirsch

Steven Joseph Hamrock

William D Coggio

Michael Juergens

Jay F Schulz

Richard M Flynn

Thorsten Gerdes

Karl D Weilandt

Albert Killich

Erik D Hare

Achim Schmidt-Rodenkirchen

Peter Blickle

Naiyong Jing

Peter Bissinger

Gregg D Dahlke

Sean M Smith

Allan T Worm

Gernot Lohr

André Streiter

Tho Q Nguyen

William M Lamanna

Michael G Costello

Reinhard Albert Sulzbach

Gerd-Volker Röschenthaler

Bernd Felix

Yuta Suzuki

Michael Andrew Yandrasits

Mark W Muggli

Maria P Dillon

Attila A Molnar

Xuan Jiang

Rudolf J Dams

Chetan P Jariwala

Cheng Li

Joachim Zech

Michael J Bulinski

Friedrich Kloos

Carsten Franke

Michael S Terrazas

Stephen E Amos

Michael H Mitchell

Ralph Kaulbach

James Arthur McDonell

Monika A Willert-Porada

Bernd Gangnus

Alain G Verschuere

Duane Douglas Fansler

Jayshree Seth

Robert J DeVoe

Jimmie Rae Baran, Jr

John G Owens

Sheng Ye

Robin Edgar Wright

Thomas J Blong

Peter Herbrechtsmeier

Rainer A Guggenberger

Malte Korten

Dennis Edward Vogel

Kim Marie Vogel

Gallus Schechner

David James Yarusso

Heinz Strutz

Gerhard Wieners

Michael J Parent

James Michael Larson

Henning Hoffmann

Yong K Wu

William J Hunt

Jochen Coutandin

Peter U Osswald

Hendrik M Grupp

Claude Lavallée

Christoph Schulte

The composition includes a curable fluoropolymer having nitrogen-containing cure sites and a curative including an organo onium cation and an anion represented by Formula (I) or Formula (II). The composition is free of metal cations or has not more than 20 parts per million metal cations and free of silicon dioxide or has less than 0.5 percent by weight silicon dioxide, based on the total weight of the composition. In some cases, the composition consists of the curable fluoropolymer and the curative. Shaped articles including the composition, a fluoroelastomer prepared by curing the composition, a method of making a fluoroelastomer article, and a process for making the composition are also described.

Composition including curable fluoropolymer and curative and methods of making and using them

A method of making a crosslinked fluoropolymer is described. The method comprises applying a composition to a substrate, wherein the composition comprises fluoropolymer and a fluorinated solvent, one or more curing agents comprising an ethylenically unsaturated group and an electron donor group or precursor thereof. The method further comprises removing the solvent and curing the fluoropolymer with actinic (e.g. ultraviolet 'UV') radiation. Also described is a composition comprising a fluoropolymer dissolved in a fluorinated solvent, and one or more curing agents comprising an ethylenically unsaturated group and an electron donor group or precursor thereof; and article comprising the crosslinked fluoropolymer.

Fluoropolymer compositions comprising a curing agent with ethylenically unsaturated and electron donor groups, and substrates coated therewith

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

Described herein is a latex blend comprising (i) an amorphous perfluoropolymer and (ii) an aqueous dispersion of semi crystalline fluoropolymer particles, wherein the particles comprise a TFE homopolymer or a TFE copolymer comprising no more than 1 wt % of a second fluorinated monomer, wherein the semi crystalline fluoropolymer particles (a) have an MFI (372° C. with 2.16 kg) of less than 50 g/10 min or (b) are not melt processible and have an SSG of less than 2.190, wherein the semi crystalline fluoropolymer particles have an average diameter greater than 100 nm.

Latex blends of amorphous perfluorinated polymers and articles derived therefrom

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

Compositions are described comprising at least one fluoropolymer, a solvent and an amino compound. The fluoropolymer comprises at least 90% by weight based on the total weight of the fluoropolymer of polymerized units derived from perfluorinated monomers selected from tetrafluoroethene (TFE) and one or more unsaturated perfluorinated alkyl ethers. The fluoropolymer typically comprises one or more cure sites, such as nitrile or halogenated cure sites. The solvent typically comprises a branched, partially fluorinated ether. In preferred embodiments the amine compound further comprises a silane group. Also described are methods of making the coating composition, methods of coating a substrate with UV and/or thermal curing, and the coated substrate.

Fluoropolymer coating compositions comprising amine curing agents, coated substrates and related methods

Method of reducing the amount of a fluorinated acid or its salts from a fluoropolymer, the method comprises: (i) providing a composition containing particles of the fluoropolymer, (ii) contacting the fluoropolymer particles with a treatment composition comprising at least one organic liquid; and, optionally, further comprising (iii) isolating, washing and subjecting the fluoropolymer to drying treatment, and wherein the fluoropolymer contains units derived from tetrafluoroethene (TFE) and is selected from the group of fluoroelastomers and the group of fluoropolymers having a melting point of less than 150° C. Also provided are fluoropolymer and compositions containing such polymers that are essentially free of fluorinated acids and their salts.

Fluoropolymers with very low amounts of a fluorinated alkanoic acid or its salts

A curable composition comprising a fluorinated amorphous fluoropolymer, and a blend of polysulfonamide and polyol crosslinking agents.

Blends of crosslinking agents for fluoroelastomers

Methods of converting a variety of fluorinated materials into anhydrous hydrogen fluoride are described. The methods include thermally decomposing the fluorinated materials into a gaseous effluent comprising hydrogen fluoride and carbon dioxide. This gaseous effluent is then treated with carbon at a temperature of at least 830° C., converting the carbon dioxide to carbon monoxide (CO) and producing a gaseous product comprising the hydrogen fluoride, which can be condensed to generate anhydrous hydrogen fluoride. These methods can also be used to convert water contained in the gaseous effluent into hydrogen.

Converting fluorinated materials into anhydrous hydrogen fluoride

A composition is described comprising at least one fluoropolymer. The fluoropolymer comprises at least 90% by weight based on the total weight of the fluoropolymer of polymerized units derived from perfluorinated monomers selected from tetrafluoroethene (TFE) and one or more unsaturated perfluorinated alkyl ethers and a fluorinated additive having a Mw of no greater than 50,000 g/mole comprising a partially fluorinated or perfluorinated alkyl or ether group. In some embodiments, the composition further comprises a fluorinated solvent. Also described are substrates comprising a coated surface of the fluoropolymer composition described herein.

Fluoropolymer compositions comprising fluorinated additives, coated substrates and methods

Provided is a curable composition comprising a partially fluorinated fluoropolymer, optionally an organo-onium accelerator an acid acceptor; and a crosslinking component of the formula.

Curable fluoroelastomer composition

Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.

Upcycling perfluoropolymers into fluorinated olefins

Electronic telecommunication articles are described comprising a crosslinked fluoropolymer layer. In typical embodiments, the crosslinked fluoropolymer layer is a substrate, patterned (e.g. photoresist) layer, insulating layer, passivation layer, cladding, protective layer, or a combination thereof. Also describes are methods of making an electronic telecommunications article and method of forming a patterned fluoropolymer layer. The fluoropolymer preferably comprises at least 80, 85, or 90% by weight of polymerized units of perfluorinated monomers and cure sites selected from nitrile, iodine, bromine, and chlorine. Illustrative electronic communication articles include integrated circuits, printed circuit boards, antennas, and optical fiber cables. Fluoropolymer compositions are also described.

Electronic telecommunications articles comprising crosslinked fluoropolymers and methods

Provided are methods for making shaped fluoropolymer by additive processing using fluoropolymer particles, polymerizable binder and extraction with supercritical fluids. Also provided are 3D printable compositions for making shaped fluoropolymer articles and articles comprising a shaped fluoropolymer.

Additive processing of fluoropolymers

A perfluorinated 1-alkoxypropene represented by general Formula (I), compositions that include such compounds, and methods and systems that include such compositions are provided, wherein Formula (I) is represented by: RO&#x2014;CF&#x2550;CFCFwherein Ris a linear, branched, or cyclic perfluoroalkyl group having 2 to 10 carbon atoms and optionally further including 1 to 3 nitrogen and/or 1 to 4 oxygen catenary heteroatoms.

Perfluorinated 1-alkoxypropenes, compositions, and methods and apparatuses for using same

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Kastl, Germany

Klaus Hintzer