W. L. Gore & Associates, Inc.

Gore Enterprise Holdings, Inc.

Xin Kang Chen

Jack J Hegenbarth

Ping Xu

Huey Shen Wu

Charles W Martin

William B Johnson

Paul D Drumheller

Rachel Radspinner

Wen K Liu

Jian Guo Chen

Jian Hou

Charger with retractable charging head

Texture pattern cookie sheet

A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.

Expandable functional TFE copolymer fine powder, the expandable functional products obtained therefrom and reaction of the expanded products

Expandable functional TFE copolymer fine powder, expanded products and reacted products therefrom

Expandable functional TFE copolymer fine powder, the expanded functional products obtained therefrom and reaction of the expanded products

An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the invention is an ionomer having (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) acceptably low hydration (less than about 120 weight percent). These ionomers are capable of being processed into thin film and are extremely well-suited for low humidity or high temperature fuel cell applications.

Low equivalent weight ionomer

Crosslinkable perfluoroelastomer compositions having low metal content and low compression set when crosslinked, and processes for producing the same, are provided. Compositions comprising terpolymers of TFE, PAVE, and CNVE having a metal content of less than 3000 ppb may be formed into high purity transparent perfluoroelastomer parts.

High purity transparent perfluoroelastomer parts and a process to produce the same

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Shanghai, China

Xin Kang Chen