3m Innovative Properties Company

Michael C Dadalas

Klaus Hintzer

Tilman C Zipplies

Ludwig Mayer

Kai Helmut Lochhaas

Werner Schwertfeger

Richard M Flynn

George G I Moore

Harald Kaspar

Michael Jürgens

Jay F Schulz

Herbert Koenigsmann

Peter Bissinger

Gernot Loehr

Michael H Mitchell

Tatsuo Fukushi

Rainer A Guggenberger

Malte Korten

Denis Duchesne

Gallus Schechner

Andreas R Maurer

Leonard W Harvey

Friedrich Kloos

Mark W Muggli

Carsten Franke

Michael Juergens

James Arthur McDonell

Arne Thaler

Bernd Gangnus

Rebekka Epsch

Brandon Alan Bartling

Kevin Wilmot Eberman

André Streiter

Helmut Traunspurger

Jeffrey N Bartow

Egon Obermaier

Oliver Frey

Andreas M Geldmacher

Per Miles Nelson

Fee Zentis

Gabriele H Gottschalk-Gaudig

Sebastian F Zehentmaier

Philipp Doebert

Arnd Kurz

Muhammad Z Nawaz

Tilman C Zipples

Michael JÜRGENS

James A Mcdonell

George GI Moore

Werner Schwertferger

Methods of preparing a dry powder blend co-coagulating conductive carbon black particles and fibrillizable polytetrafluoroethylene particles from an aqueous dispersion and drying the co-coagulate are described. Dry powders prepared by such methods and electrodes prepared from such powders are also described.

Battery electrode binder material

An aqueous dispersion comprising a tetrafluoroethylene core-shell polymer and at least one surfactant corresponding to the general formula R0-[CHCH0][R0]-Rwherein Rrepresents a linear or branched aliphatic hydrocarbon group having at least 8 carbon atoms, preferably 8 to 18 carbon atoms, R2 represents an alkylene having 3 carbon atoms, R3 represents hydrogen, a C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group, n has a value of 0 to 40, m has a value of 0 to 40 and the sum of n+m is at least 2, wherein the dispersion is free of fluorinated emulsifiers or contains them in an amount of less than 50 ppm based on the weight of the dispersion and wherein the core-shell polymer contains an outer shell of tetrafluoroethylene homopolymer. Further provided are methods of making the dispersions, coating compositions comprising the dispersions and article coated by the coating composition.

Tetrafluoroethylene polymer dispersions stabilized with aliphatic non-ionic surfactants

A fluoropolymer composition particles comprising electro-active material, wherein the electro-active material comprises graphite and metal compounds and combinations thereof. The compositions also comprise water and an organic liquid having a boiling point between 70 C and 200 C. Also provided are methods of making a paste and methods of making electrodes and electrodes made with the paste.

Fluoropolymer compositions with high content of inorganic material

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

Described herein is multilayer article made by the process comprising: delivering particles comprising a silicon compound from at least one fluid jet to a metal surface to embed the metal surface with the silicon compound to form a silicon compound layer; coating the silicon compound layer with an aqueous fluoropolymer dispersion to form a fluoropolymer layer and thereby forming a multilayered article, wherein the aqueous fluoropolymer dispersion comprises (i) a modifying agent; and (ii) a fluorinated polymer, wherein the fluorinated polymer comprises at least one of (a) a partially fluorinated polymer capable of forming a carbon-carbon double bond, (b) a functionalized fluorinated polymer, and (c) combinations thereof; and sintering the multilayered article to form the release surface coated substrate.

Multilayer articles comprising a release surface and methods thereof

Provided are processes for upconcentrating fluoropolymer dispersions. Also provided are upconcentrated dispersions and substrates coated with such dispersions.

Method for reducing fluorinated emulsifiers from aqueous fluoropolymer dispersions using sugar-based emulsifiers

Provided are aqueous fluoropolymer dispersions containing at least one tetrafluoroethene homopolymer or tetrafluoroethene copolymer and at least one non-aromatic polyhydroxy surfactant. The dispersions contain from 0 to 100 ppm based on the total weight of the dispersion of fluorinated surfactants. Also provided are methods of coating using the dispersions and substrate coated with the dispersions.

Fluoropolymer compositions containing a polyhydroxy surfactant

Provided is an article comprising a bearing, wherein the bearing has disposed upon it a fluoropolymer composition. The fluoropolymer composition comprises a fluoropolymer and a pH-dependent surfactant.

Fluoropolymer coated articles

There are provided compositions comprising (i) at least one non-aromatic polyol compound containing at least one polyol unit having at least two hydroxyl groups and at least one long chain unit containing at least 6 carbon atoms; and (ii) at least one fluoropolymer comprising repeating units derived from a fluorinated olefin. There are also provided methods of improving the shear stability of fluoropolymer dispersions, methods of coating substrates, and substrates coated with the above described composition.

Fluoropolymer compositions containing a polyol compound and methods of making them

A method of making a fluoropolymer dispersion by first providing a fluoropolymer dispersion comprising fluoropolymer particles and one or more fluorinated surfactants selected from fluorinated carboxylic acids or salts thereof having the general formula:[R&#x2014;O-L-COO]X&#x2003;&#x2003;(I)

Method of making fluoropolymer dispersion

The present invention provides a fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of 10 to 400 nm dispersed in water whereby the dispersion is free of fluorinated surfactant having a molecular weight of less than 1000 g/mol or contains the fluorinated surfactant having a molecular weight of less than 1000 g/mol in an amount of not more than 0.025% by weight based on the total weight of solids in the dispersion. The dispersion further comprises a non-ionic surfactant and an anionic surfactant selected from fluorinated anionic surfactants having a molecular weight of at least 1000 g/mol, non-fluorinated anionic surfactants and mixtures thereof.

Fluoropolymer dispersion containing no or little low molecular weight fluorinated surfactant

A process of reducing the amount of fluorinated emulsifiers in fluoropolymer dispersions by contacting the fluoropolymer dispersion with an anion exchange resin in the presence of a pH-dependent surfactant, and fluoropolymer dispersion containing the pH-dependent surfactant and uses thereof.

Process for removing fluorinated emulsifier from fluoropolymer dispersions using an anion-exchange resin and a pH-dependent surfactant and fluoropolymer dispersions containing a pH-dependent surfactant

A coating composition having (i) an aqueous dispersion of fluoropolymer particles comprising a non-melt processible polymer of tetrafluoroethylene, (ii) a fluorinated surfactant, (iii) a non-ionic non-fluorinated surfactant and (iv) a non-fluorinated polymer, wherein the fluorinated surfactant is selected from fluorinated carboxylic acids or salts thereof of the general formula (I):[R&#x2014;O-L-COO]X&#x2003;&#x2003;(I)wherein L represents a linear partially or fully fluorinated alkylene group or an aliphatic hydrocarbon group, Rrepresents a linear partially or fully fluorinated aliphatic group or a linear partially or fully fluorinated aliphatic group interrupted with one or more oxygen atoms, Xrepresents a cation having the valence i and i is 1, 2 or 3.

Coating composition

Provided is a method comprising polymerizing at least one fluorinated monomer in an aqueous emulsion polymerization in the presence of a carbosilane surfactant having at least one hydrophobic part, wherein the hydrophobic part has at least one silicon atom, and having at least one hydrophilic part, with the proviso that the carbosilane contains no Si&#x2014;O bonds.

Preparation and stabilization of fluoropolymer dispersions

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Eggenfelden, Germany

Michael C Dadalas