摘要:
An actuator used for an automatic cruising control device and possible to be assembled very easily, which comprises an electric motor, reduction gear, an electromagnetic clutch provided with a clutch yoke and a bobbin formed with a coil, an output pulley to be connected to a throttle valve of the engine of the motor vehicle through a throttle cable, and the clutch yoke and the bobbin are provided with coupling means composed of, for example, a hook formed to the bobbin, a hook-insertion hole formed in the clutch yoke and a hook-engaging part formed in the vicinity of the hook-insertion hole of the clutch yoke. The bobbin is easily fastened to the clutch yoke through the coupling means by snap action.
摘要:
Provided herein are a phenolic hydroxyl group-containing aromatic polyamide resin and a resin composition containing the resin, such as an epoxy resin composition containing an epoxy resin. The phenolic hydroxyl group-containing aromatic polyamide resin has a structure represented by the following formula (1): wherein m and n are average values satisfying the following formula: 0.005≦n/(m+n)
摘要:
The invention provides a phenolic hydroxyl group-containing rubber-modified polyamide resin capable of providing a cured product with excellent heat resistance, adhesion properties, electrically insulating property and flame retardance and having a sufficient flexibility when being shaped into a film, which is characterized by having in its molecule (a) a phenolic hydroxyl group-containing aromatic polyamide segment represented by the following formula (1): (in the formula (1), m and n are average values and satisfy a relationship of 0.005≦n/(m+n)≦1.00 and m+n is an integer of 2-200, and Ar1 is a bivalent aromatic group, Ar2 is a bivalent aromatic group having a phenolic hydroxyl group and Ar3 is a bivalent aromatic group) and (b) a hydrogenated butadiene polymer segment.
摘要翻译:本发明提供一种含酚羟基的橡胶改性聚酰胺树脂,其能够提供具有优异的耐热性,粘合性,电绝缘性和阻燃性的固化产物,并且当成形为膜时具有足够的柔韧性,其特征在于 在其分子(a)由下式(1)表示的含酚羟基的芳族聚酰胺链段:(式(1)中,m和n是平均值,满足0.005≦̸ n /( m + n)≦̸ 1.00,m + n为2〜200的整数,Ar 1为二价芳香族基团,Ar 2为具有酚性羟基的二价芳香族基团,Ar 3为二价芳香族基团),(b) 氢化丁二烯聚合物链段。
摘要:
In a conventional polymer membrane electrode assembly, particularly when operated for a long period of time, a portion of the polymer electrolyte membrane to be in contact with the gas diffusion layer has suffered significant degradation. In order to address this, in a membrane electrode assembly including a hydrogen ion conductive polymer electrolyte membrane, a pair of catalyst layers arranged on both surfaces of the polymer electrolyte membrane, and a pair of gas diffusion layers, each including a fibrous substrate, arranged on the outer surfaces of the catalyst layers, a thickness TA of a center portion that faces the catalyst layer and a thickness TB of a peripheral portion surrounding the center portion are set to satisfy a expression (1): 0.7≦TB/TA≦0.9.
摘要:
The present invention relates to a phenolic hydroxy group-containing rubber-modified polyamide resin which has, in the molecule, a phenolic hydroxy group-containing aromatic polyamide segment having a structure represented by the following formula (A) (wherein, m and n are average values and Ar represents a divalent aromatic group) and a butadiene (co)polymer segment selected from the following formula (B-1) or (B-2), —(CH2—CH═CH—CH2)X— (B-1) —(CH2—CH═CH—CH2)Y—(CH2—CH(CN))Z— (B-2) (wherein, each of x, y and z is an average value and 0.01≦z/(y+z)≦0.13, x represents a positive number of 5 to 200, and also y+z is a positive number of 10 to 200), and a resin composition containing said resin, in particular an epoxy resin composition; a cured product of said epoxy resin composition is excellent in flexibility, heat resistance and electrical properties especially at high temperature and high humidity.
摘要翻译:本发明涉及一种含酚羟基的橡胶改性聚酰胺树脂,其分子中含有具有由下式(A)表示的结构的含酚羟基的芳族聚酰胺链段(其中m和n分别为 平均值,Ar表示二价芳族基团)和选自下式(B-1)或(B-2)的丁二烯(共)聚合物链段,<?在线公式描述=“在线公式” 末端=“铅”→>(CH2-CH-CH-CH2)X-(B-1)<?在线公式描述=“在线公式”end =“tail”?> - (CH2-CH-CH-CH2)Y-(CH2-CH(CN))Z-(B-2)<?line line line line line line -formulae description =“In-line Formulas”end =“tail”?>(其中,x,y和z各自为平均值,0.01 <= z /(y + z)<= 0.13,x表示正数 数量为5〜200,y + z为10〜200的正数),以及含有所述树脂,特别是环氧树脂组合物的树脂组合物; 所述环氧树脂组合物的固化物的柔软性,耐热性和电特性优异,特别是在高温高湿下。
摘要:
A process for producing a microparticulate hardening catalyst, comprising the steps of jetting a liquid composition containing epoxy resin hardening catalyst (A), monomer having an ethylenically unsaturated group (B) and photopolymerization initiator (C) through a minute nozzle into a gas so as to form microparticles; and while the microparticles are floating, irradiating the same with high-energy rays to thereby effect polymerization of the monomer having an ethylenically unsaturated group (B).
摘要:
An air purifying apparatus for a fuel cell is provided on a flow route of air supplied to the fuel cell. The air purifying apparatus includes a first pollutant-removing means that oxidizes a pollutant in the air and a second pollutant-removing means that adsorbs and removes the pollutant. The first pollutant-removing means includes a catalyst that oxidizes the pollutant by means of oxygen in the air, and the catalyst has an oxidizing activity with respect to at least one selected from the group consisting of organic substances, nitrogen oxides, sulfur oxides, ammonia, hydrogen sulfide, and carbon monoxide. The first pollutant-removing means may include an ozone generator. The second pollutant-removing means adsorbs and removes the pollutant by means of a porous material carrying at least one selected from the group consisting of permanganates, alkali salts, alkaline hydroxides, and alkaline oxides.
摘要:
A porous supporting carbon body of a gas diffusion layer is provided with a larger number of smaller pores at its catalyst layer side and a smaller number of larger pores at the other side, particularly with an appropriate distribution of finer mesh at its catalyst layer side and coarser mesh at the other side. As a result, a high performance polymer electrolyte fuel cell is obtained in which water generated at the catalyst layer is quickly sucked out to the gas diffusion layer, and is evaporated at the gas diffusion layer to be effectively exhausted to outside the fuel cell, so that excessive water can be prevented from retaining in the gas diffusion electrode, with the polymer electrolyte membrane being maintained at an appropriately wet condition.
摘要:
It has been difficult to keep the voltage of a polymer electrolyte fuel cell stable for a long period of time because uniform water content control over the plane of the membrane-electrode assembly is impossible. A gas diffusion electrode is produced by forming a conductive polymer layer composed of conductive particles and a polymer material on a porous material composed of carbon fiber, and forming a catalyst layer composed of platinum-carried carbon particles on the plane of the conductive polymer layer. The conductive polymer layer is composed of conductive particles different in particle size, and the content of the conductive particles having the smaller particle size is decreased from one end towards the other end of the gas diffusion electrode.
摘要:
In order to obtain an electrolyte membrane-electrode assembly using a thin electrolyte membrane, the present invention provides a production method of an electrolyte membrane-electrode assembly comprising: a step of forming a hydrogen ion-conductive polymer electrolyte membrane on a base material; a treatment step of reducing adhesion force between the base material and the hydrogen ion-conductive polymer electrolyte membrane; a step of separating and removing the base material; and a step of bonding a catalyst layer and a gas diffusion layer onto the hydrogen ion-conductive polymer electrolyte membrane, and, in order to obtain an electrolyte membrane-electrode assembly which has a catalyst without clogging and is excellent in electrode characteristics, the present invention provides a production method of an electrolyte membrane-electrode assembly comprising: a step of bonding a hydrogen ion-conductive polymer electrolyte membrane and a catalyst layer via a coating layer; a step of removing the coating layer; and a step of obtaining an electrolyte membrane-electrode assembly by forming a gas diffusion layer on the catalyst layer.