摘要:
A method for producing optical disks each by bonding two disk substrates to each other through an adhesive sheet, which comprises the steps of: preparing a tape which includes a release tape, and a plurality of disk-like adhesive sheets arranged under a lower surface of the release tape at predetermined intervals; pressing the tape against an upper surface of a first disk substrate by an elastic material to thereby temporarily bond the first disk substrate to one of the adhesive sheets under the lower surface of the tape so as to form a temporarily bonded article; separating the release tape from the temporarily bonded article to expose the adhesive sheet; putting a second disk substrate on the exposed adhesive sheet and pressing the second disk substrate against the exposed adhesive sheet by the elastic material to thereby stick the second disk substrate to the temporarily bonded article so as to form a stuck article; and keeping the stuck article under a pressure or heat and pressure atmosphere to thereby bond the first and second disk substrates.
摘要:
The present invention provides a damping member constituted of a viscoelastic member and a constraint member, each of which is formed on a brush made of thin metal plate, in a dc minimotor, the viscoelastic member comprising adhesive mass containing a copolymer of alkyl acrylate and acrylic acid. The present invention further provides a brush constituted of the above damping member and a dc minimotor equipped with the brush.
摘要:
A propylene resin composition featuring good flexibility and transparency without producing sticky feeling, and comprising a polypropylene component and a copolymer component of propylene and ethylene, wherein (I) the amount of the component (hereinafter referred to as medium- to low-temperature eluting component) that elutes out at temperatures of up to 90° C. by the temperature rising elution fractionation method by using an o-dichlorobenzene solvent is from 50 to 99% by weight of the whole amount, the amount of the component (hereinafter referred to as high-temperature eluting component) that elutes out at temperatures of not lower than 90° C. is from 50 to 1% by weight of the whole amount, and the amount of the component (hereinafter referred to as low-temperature eluting component) eluting out up to a temperature of 0° C. is not larger than 10% by weight of the whole amount, and (II) the content of the ethylene units in the component eluting up to the temperature of 90° C. is not smaller than 4% by weight but is smaller than 20% by weight, and the content of the propylene units in the component eluting at temperatures of not lower than 90° C. is from 97 to 100% by weight.
摘要:
An object of the present invention is to provide an electrolyte membrane-electrode membrane assembly for a solid polymer type fuel cell having superior characteristics, wherein a gas diffusion electrode membrane and a solid electrolyte membrane are well bonded, and electrode catalysts are uniformly-dispersed to obtain high electrode activity, a production method thereof and a fuel cell equipped therewith.The electrolyte membrane-electrode membrane assembly of the present invention is produced by jointing a molded membrane for forming a gas diffusion electrode membrane formed by a paste composition including a polymeric organic compound having a quaternary base forming functional group and an electrode catalyst, with a quaternary base type anion-exchange resin precursor membrane for forming a solid electrolyte membrane having a quaternary base forming functional group; forming of a quaternary base type anion-exchange group by bonding a polyfunctional quaternarizing agent to the quaternary base forming functional group included in each of said molded membrane and said precursor membrane via each functional group of the polyfunctional quaternarizing agent which is present around the bonded interface of both membranes to thereby crosslink the formed anion-exchange resins in both membranes via the polyfunctional quaternarizing agent simultaneously; and subjecting non-quaternarized residue of the quaternary base forming functional groups in thus-obtained assembly to a quaternary base forming treatment.A fuel cell comprising thus-produced electrolyte membrane-electrode membrane assembly is excellent in bonding property, durability and output voltage.
摘要:
The web tension control apparatus according to the present invention is provided with a biasing roller (6) adapted to be urged against the outer circumferential surface of a midway drag roller (4), a biasing means (7) adapted to apply an urging force in the biasing direction against the biasing roller (6) for the midway drag roller, a tension detecting means (7), (9) adapted to detect the tension of a running web (1) upstream and downstream of a printing unit (2), and a control means (10) adapted to control the urging force of the biasing device 7 in accordance with the signals from the tension detecting means (7), (9). If there is any difference in the signals from the tension detecting means (7), (9), the control device (10) controls the biasing roller (6) for the midway drag roller (4) by the aid of the biasing device (7) so as to eradicate the difference in the signals, so that the tensions web upstream and downstream of the printing unit (2) are equal with each other. Any losses of the tension in the web (1) as generated in the slotted section of a printing cylinder may be prevented from occurring, and any variations in the tensions of the web (1) may be relieved substantially so that defects in the printing such as the offset doubles and the deviations in cutting the printings, etc. may be obviated accordingly.
摘要:
The present invention aims at providing an optimal constitution and production method for an OH-type anion-exchange hydrocarbon-based elastomer used when manufacturing a catalyst electrode layer of a solid polymer type fuel cell, in view of a balance of stability, durability and flexibility. Also, the present invention aims to provide an ion-conductivity imparting agent comprising the OH-type anion-exchange hydrocarbon-based elastomer, wherein the elastomer is uniformly dissolved or dispersed and has appropriate viscosity even with a high concentration. The anion-exchange hydrocarbon-based elastomer of the present invention has an iodine value of 3 to 25, contains an anion-exchange group having OH−, CO32− and/or HCO3− as a counterion in its molecule and is poorly-soluble in water. The hydrocarbon-based elastomer can preferably be used as an ion-conductivity imparting agent for forming a catalyst electrode layer by mixing an organic solvent.
摘要:
An object of the present invention is to provide an electrolyte membrane-electrode membrane assembly for a solid polymer fuel cell having superior characteristics, wherein a gas diffusion electrode membrane and a solid electrolyte membrane are well bonded, and electrode catalysts are uniformly-dispersed to obtain high electrode activity, a production method thereof and a fuel cell equipped therewith.The electrolyte membrane-electrode membrane assembly of the present invention is produced by jointing a molded membrane for forming a gas diffusion electrode membrane formed by a paste composition including a polymeric organic compound having a quaternary base forming functional group and an electrode catalyst, with a quaternary base anion-exchange resin precursor membrane for forming a solid electrolyte membrane having a quaternary base forming functional group; forming of a quaternary base anion-exchange group by bonding a polyfunctional quaternarizing agent to the quaternary base forming functional group included in each of said molded membrane and said precursor membrane via each functional group of the polyfunctional quaternarizing agent which is present around the bonded interface of both membranes to thereby crosslink the formed anion-exchange resins in both membranes via the polyfunctional quaternarizing agent simultaneously; and subjecting the non-quaternarized residue of the quaternary base forming functional groups in thus-obtained assembly to a quaternary base forming treatment.A fuel cell comprising thus-produced electrolyte membrane-electrode membrane assembly is excellent in bonding property, durability and output voltage.
摘要:
There is provided an ion exchange membrane and preparation process thereof. The membrane has a porous film layer having pores with an average pore diameter of 0.01 to 2 μm and a surface layer existent on at least one side of the porous film. The pores of the porous film layer are filled with an ion exchange resin and the surface layer contains (a) an inorganic filler having an average primary particle longest diameter which is 0.1 time or more the average pore diameter of the pores of the porous film layer and 50 μm or less and (b) an ion exchange resin. The membrane is useful for a diaphragm of a direct methanol type fuel cell.
摘要:
There is provided an ion exchange membrane and preparation process thereof. The membrane has a porous film layer having pores with an average pore diameter of 0.01 to 2 μm and a surface layer existent on at least one side of the porous film.The pores of the porous film layer are filled with an ion exchange resin and the surface layer contains (a) an inorganic filler having an average primary particle longest diameter which is 0.1 time or more the average pore diameter of the pores of the porous film layer and 50 μm or less and (b) an ion exchange resin. The membrane is useful for a diaphragm of a direct methanol type fuel cell.
摘要:
The present invention aims at providing an optimal constitution and production method for an OH-type anion-exchange hydrocarbon-based elastomer used when manufacturing a catalyst electrode layer of a solid polymer type fuel cell, in view of a balance of stability, durability and flexibility. Also, the present invention aims to provide an ion-conductivity imparting agent comprising the OH-type anion-exchange hydrocarbon-based elastomer, wherein the elastomer is uniformly dissolved or dispersed and has appropriate viscosity even with a high concentration.The anion-exchange hydrocarbon-based elastomer of the present invention has an iodine value of 3 to 25, contains an anion-exchange group having OH−, CO32− and/or HCO3− as a counterion, in its molecule, and is poorly-soluble in water. The hydrocarbon-based elastomer can preferably be used as an ion-conductivity imparting agent for forming a catalyst electrode layer by mixing an organic solvent.