Agc Inc.

Asahi Glass Company, Limited

Masako Kawamoto

Satoru Hommura

Hiroshi Sakamoto

Yasuhiro Ikeda

Yuriko Kaida

Eiji Shidoji

Takahira Miyagi

Hiromi Sakurai

The present invention provides a catalyst layer, a catalyst layer ink and a membrane-electrode assembly which enable provision of fuel cells with high power efficiency. The catalyst layer of the present invention comprises a carbon alloy catalyst and an ion exchange polymer which comprises at least one species of units having a cyclic ether structure selected from the group consisting of units represented by the formula (u11), units represented by the formula (u12), units represented by the formula (u21), units represented by the formula (u22) and units represented by the formula (u24).

Catalyst layer, catalyst layer ink and membrane-electrode assembly

To provide a catalyst layer, a catalyst layer forming liquid, and a membrane electrode assembly, capable of forming a fuel cell excellent in power generation efficiency. The catalyst layer of the present invention comprises a supported catalyst having a carrier containing a metal oxide and a catalyst supported on the carrier; and a polymer having at least one type of units containing a cyclic ether structure, selected from the group consisting of units (u11), units (u12), units (u21) and units (u22), and having an ion-exchange group, wherein the total of the content of the units containing a cyclic ether structure is at least 30 mol % to all units which the polymer contains:

Catalyst layer, catalyst layer forming liquid and membrane electrode assembly

Provided is a process for easily producing a wire grid polarizer showing a high polarization separation ability in the visible light region and having an improved transmittance in a short wavelength region.

Process for producing wire-grid polarizer

Growing community of inventors

Tokyo, Japan

Masako Kawamoto