Abstract: To provide a membrane electrode assembly capable of forming a fuel cell excellent in power generation efficiency, and a polymer electrolyte fuel cell. The membrane electrode assembly of the present invention comprises an anode having a catalyst layer containing a proton-conducting polymer and a catalyst, a cathode having a catalyst layer containing a proton-conducting polymer and a catalyst, and a solid polymer electrolyte membrane disposed between the anode and the cathode, wherein the proton-conducting polymer contained in the catalyst layer of at least one of the anode and the cathode, is a polymer (H) having a cyclic ether structural unit and an ion exchange group, and the solid polymer electrolyte membrane contains a fluorinated polymer (S) having an ion exchange group; and the thickness of the solid polymer electrolyte membrane is from 5 to 15 ?m, and the ratio of the content M1 [mol %] of the cyclic ether structure unit to the thickness T1 [?m] of the solid polymer electrolyte membrane is 4.5 or more.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: Provided is a wire grid polarizer showing a high degree of polarization, a high p-polarized light transmittance and a high s-polarized light reflectivity for light incident from a front surface and showing a low s-polarized light reflectivity for light incident from its rear surface, in the visible light region, and a process for producing such a polarizer.

Abstract: 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. On a light-transmitting substrate 14 having a surface on which a plurality of ridges 12 are formed, an underlayer 22, first fine metallic wires 24 and second fine metallic wires 30 are formed by a vapor deposition method satisfying the conditions (A) to (F). (A) The underlayer material was vapor-deposited on a top face 16 and a first side face 18 of each ridge 12 from a direction of an angle ?L. (B) The underlayer material is vapor-deposited on the top face of a first underlayer 22a and a second side face 20 from a direction of an angle of ?R on the opposite side to that of the condition (A). (C) ?L and ?R are from 60° to 90°. (D) The height Hma1 of the underlayer 22 is from 1 to 20 nm.

Abstract: A sanitary device comprising a urine receiver and a urine bag removably attached to the receiver. The urine receiver includes a receiver body forming an opening at least at both ends thereof, and adapted to accommodate the urine bag therein through the open ends. A receiver frame is adapted to rotatably support the receiver body by means of pivot pins and is equipped with grip means at a lower end thereof, adapted to press one side of the receiver body in abutment against the body of a user of the device. A grip handle portion is disposed at the upper end thereof. The urine bag is a hollow element having an opening at one end thereof and fitted with an elastic, hygroscopic abutting member configured to be complementary for the inguinal region of the body against which it is to be abutted, and it is adapted to be accommodated in the receiver body to thereby prevent leakage of urine during use of the device.