E.i. Dupont De Nemours and Company

Toyota Jidosha Kabushiki Kaisha

The Chemours Company Fc, LLC

The Johns Hopkins University

The Dupont Merck Pharmaceutical Company

Robert Clayton Wheland

Roger Harquail French

Colin Anolick

Andrew Edward Feiring

Walter R Hertler

Bruce E Smart

Viacheslav Alexandrovich Petrov

William Brown Farnham

Paul Douglas Brothers

Weiming Qiu

Carl G Krespan

Charles W Stewart, Sr

Richard Douglas Bauer

Christopher John Bish

Gwendyline Y Chen

Charles Winfield Stewart

Che-Hsiung Hsu

Sheng Peng

Daniel David Lecloux

Eric Maurice Smith

Kiu-Seung Lee

David Lincoln Thorn

Ronald Earl Uschold

Hjalti Skulason

Owen W Webster

John Russell Crompton, Jr

Gregory D Cramer

Shawn Yeisley

Ramdas Dujari

Jon Lee Howell

Clay Woodward Jones

Mark Gerrit Roelofs

Albert Gordon Anderson

William Howard Tuminello

Charles Joseph Noelke

Ralph Munson Aten

Fredrick Claus Zumsteg, Jr

Joy Sawyer Bloom

Masanori Aimu

Edgar W Slocum

Yuan Yu Chen

Randal Lewis Perry

Aquiles C Sobrero

Brian Edward Kipp

Leo Ernest Manzer

Ming-Hong Hung

Paul R Resnick

Peter Arnold Morken

Frank L Schadt, Iii

Carmine C Torardi

Kenneth George Sharp

Nobuaki Nonoyama

Jeffrey Scott Meth

Ralph Birchard Lloyd

Walter Mahler

William George O'Brien

Sundar M Rao

Sung Jin Chung

Donald Frederick Lyons

Geoffrey Nunes

Xudong Chen

Gregory Alan Bell

Theodore Arthur Treat

Thomas William Harding

Gregory T Dee

George Francis Diffendall

Sina Ebnesajjad

Curtis R Fincher

Mureo Kaku

John F Buzinkai

Jeffrey A Hrivnak

Win-Chung Lee

Satoko Iwato

Frederick Claus Zumsteg, Jr

Joseph Norman Hockman

James F Ryley

Mark A McHugh

David Joseph Jones

Ivan K Miller

Takahasi Tatsuhiro

Marion R DeWitt, Jr

Timothy Edward Hopkins

James M Donatello

Matthew John Targett

Vadim Leonidovitch Lichtchinski

The present disclosure relates to solutions for forming a fluoropolymer coatings, comprising: i) an organic solvent, and dissolved therein ii) a fluoropolymer comprising repeat units arising from specific fluoroolefin, alkyl or aryl vinyl ether and alkenyl silane monomers. The present fluoropolymer solutions have long shelf stability life, minimal to no formation of insoluble residue or gel over the period between their manufacture and use, are of a viscosity that allows for facile filtration and so are substantially free from undesirable submicron size particles, have a dissolved polymer content such that the solutions are of utility in commercial single-coat coating processes, and afford fluoropolymer coatings on substrates that have excellent adhesion to the substrate during use and over the lifetime of the electronic device.

Fluoropolymer solution for forming a fluoropolymer coating

The present disclosure relates to a passivation layer comprising a photocrosslinked fluoropolymer and a process for forming the layer. Passivation layers comprising the crosslinked fluoropolymer have low dielectric constants, low water absorptivity and are able to be photoimaged so as to provide the very fine features needed for modern electronic equipment.

Passivation layer comprising a photocrosslinked fluoropolymer

This invention pertains to a novel perfluoroalkyl-crosslinked fluoropolymer with perfluoroether pendant groups. The perfluoroalkyl-crosslinked fluoropolymer hereof is particularly well-suited for use in chemically and thermally aggressive environments, in part by virtue of the highly stable perfluoroalkyl crosslink. The perfluroalkyl-crosslinked fluoropolymer hereof can be prepared by crosslinking in situ a crosslinkable precursor in the form of a shaped article. A crosslinkable precursor is a fluoropolymer having a dichloroamino-functionalized functionalized perfluoroether pendant group.

Perfluoroalkyl-crosslinked fluoropolymer with perfluoroether pendant groups

This invention pertains to a novel fluoropolymer characterized by a dichloroamino-functionalized perfluoroether pendant group that terminates in &#x2014;CFNCl. The polymer so formed is crosslinkable and useful for the preparation of shaped articles and photo-imaged coatings. The novel fluoropolymer can be thermally treated to form crosslinked fluoropolymers with highly stable perfluoroalkylene crosslinks. The novel fluoropolymer is conveniently prepared by treating a cyano-functionalized fluoropolymer with Cl&#x2014;F.

Dichloroamino-functionalized fluoropolymer and process for preparing

This invention pertains to a novel thermal process for converting a fluoropolymer having cyano-functionalized perfluoroether pendant groups into a novel perfluoroalkyl-crosslinked fluoropolymer having perfluoroether pendant groups. The process comprises heating the fluoropolymer having cyano-functionalized perfluoroether pendant groups in the presence of Cl&#x2014;F to a temperature in the range of 200 to 300&#xb0; C. The fluoropolymer having cyano-functionalized perfluoroether pendant groups can first be formed into a shaped article, and the shaped article then subject to treatment in situ with Cl&#x2014;F.

Direct crosslinking process for preparing perfluoroalkyl-cross-linked fluoropolymer having perfluoroether pendant groups

An electrode () for fuel cell comprises: a catalyst carrier () that is an electrically-conductive carrier () with a catalyst () supported thereon; a first electrolyte resin (); and a second electrolyte resin (). The first electrolyte resin has oxygen permeability of less than 2.2&#xd7;10mol/(m s Pa) in an environment having temperature of 80 degrees Celsius and relative humidity of 50%. The second electrolyte resin has oxygen permeability of not less than 2.2&#xd7;10mol/(m s Pa) in the environment having temperature of 80 degrees Celsius and relative humidity of 50%.

Electrode for fuel cell, manufacturing method of electrode for fuel cell, polymer electrolyte fuel cell and catalyst ink

A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cmof a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.

Cathode catalyst layer, membrane electrode assembly and polymer electrolyte fuel cell and manufacturing method thereof

This invention pertains to an azo-crosslinked fluoropolymer with perfluoroether pendant groups. The polymer so formed is highly useful in the form of shaped articles with excellent chemical and thermal stability, including photoimaged coatings. The azo-crosslinked fluoropolymer hereof is advantageously formed by exposure to UV radiation of a fluorinated polymer having dichloroamino-functionalized perfluoroether pendant groups. In one embodiment, a fluorinated polymer having dichloroamino-functionalized perfluoroether pendant groups is formed into a shaped article that is then UV-treated in situ.

Azo-crosslinked fluoropolymer with perfluoroether pendant groups, process for preparing, and method for forming imaged article therewith

This invention relates to certain photocrosslinkable fluoropolymers, processes for crosslinking the fluoropolymers using UV radiation, and the photocrosslinked fluoropolymers produced.

Photocrosslinkable fluoropolymers, UV processes and photocrosslinked polymers

Amorphous hydrofluoroolefin telomers are prepared by a free-radical polymerization process conducted at high temperature and pressure in the presence of non-monomeric chain transfer agent.

Processes for preparing low molecular weight hexafluoropropylene-olefin cotelomers

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazide curatives. The hydrazide is of the general formula R(C(O))NHNHR, wherein n is 1 or 2; Ris NH, NHNH, NHR, NR, NHNHC(O)NH, NHNHC(O)NHNH, NHNHR, or NHC(O)NHNH; Ris H, alkyl, aryl, heterocycle, COR, C(O)R, CHR, or C(O)R; Ris alkyl, aryl, heterocycle, or CHR; and Ris a fluoroalkyl group.

Curable fluoroelastomer composition

Liquid hydrofluorocarbons provide low corrosivity lubrication of metallic surfaces especially at elevated temperatures.

Lubricated metal article

There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.

Transparent composite conductors having high work function

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Wilmington, DE, United States of America

Robert Clayton Wheland