摘要:
A hydrophilic polymer alloy which has a permanent hydrophilic nature, a sufficient mechanical strength and a high safety and which is suitable for the formation of hydrophilic porous membranes manufacturable by an industrially advantageous process can be prepared by blending an amorphous hydrophilic copolymer (X) containing 10 mole % or more of an ethylene unit, 10 to 60 mole % of a vinyl alcohol unit and 1 mole % or more of a vinyl acetate unit with a polyolefin (Y). Furthermore, this polymer alloy is also suitable for the formation of hydrophilic (porous) fibers having a sufficient mechanical strength and antistatic function.
摘要:
Detecting means for detecting driving conditions of a vehicle such as engine load such as throttle opening, vehicle speed, gear position or gear ratio and so on and memory means for storing characteristics of the vehicle such as engine power characteristic, torque converter characteristic, fuel consumption rate characteristic and so on are provided. Driving shaft torques before and after gear shift, an estimating value of fuel consumption rate and a gear shift point of a transmission are calculated in real time to perform transmission control using the signals from said detecting means and the signals from said memory means. With the construction according to the present invention described above, an automatic transmission can be controlled in real time by calculating a gear shift point of the transmission in a short time through estimating the driving shaft torques before and after gear shift.
摘要:
A method for culturing cells by supplying oxygen to a culture medium through a multilayer composite membrane consisting of a porous layer(s) and a nonporous layer(s) having a thickness of less than 10 micrometers laminated one after the other. By using this multilayer composite membrane for supplying oxygen to the culture medium, oxygen can be supplied to the culture medium and/or the culture broth without causing foaming in the culture medium, cell growth inhibition or reduction in productivity of cellular products.
摘要:
An automatic developing apparatus for developing photosensitive materials, wherein a water supply tank for storing water used to dilute or dissolve processing agents and a waste fluid tank for storing waste fluids after the processes thereof are housed therein. The waste fluid tank is removably incorporated in the apparatus.
摘要:
The present invention relates to a fiber comprising a heat curable polyamide resin composition containing both a) a phenolic hydroxy group-containing polyamide and b) an epoxy resin having two or more epoxy groups in one molecule, a nanofiber comprising said resin composition obtained by electrospinning method, a nonwoven fabric obtained by applying heat treatment to a laminate of said nanofiber, a method for producing said nanofiber by electrospinning method and a heat curable polyamide resin composition for fiber. A nonwoven fabric can be obtained only by subjecting a deposit of the nanofiber obtained by electrospinning method to heat treatment, nanofibers in the obtained nonwoven fabric are bonded to each other by heat-curing, and the nonwoven fabric has such characteristics that its mechanical strength, heat resistance and chemical resistance are excellent and that it has a high strength.
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:
The present invention relates to a primer resin for semiconductor devices which comprises a polyamide resin represented by the following formula (1): (wherein, R1 represents a tetravalent aromatic tetracarboxylic acid residue selected from the group consisting of pyromellitic acid, 3,4,3′,4′-diphenyl ether tetracarboxylic acid, 2,3,6,7-naphthalenetetracarboxylic acid and 3,4,3′,4′-benzophenone tetracarboxylic acid, R2 represents at least one kind of divalent diamine residue selected from the group consisting of diamino-4,4′-hydroxydiphenylsulfone, 4,4′-diamino-3,3′5,5′-tetraethyldiphenylmethane and 1,3-bis-(aminophenoxy)benzene, and n is a repeating number and represents a positive number of 10 to 1000) and has a lead frame comprising copper or 42 alloy, a semiconductor device having said primer resin layer between a lead frame comprising copper or 42 alloy and a cured product of a sealing resin, and a semiconductor sealing epoxy resin composition containing said primer resin; and said semiconductor device has an extremely improved adhesiveness between said lead frame and a cured product of a sealing resin composition and also is excellent in heat resistance and low moisture absorption.
摘要:
The present invention relates to a positive type photosensitive polyimide resin composition comprising a phenolic hydroxy group-containing soluble polyimide resin (A) formed from a tetrabasic acid dianhydride (a), an aminophenol compound having at least two amino groups and at least one phenolic hydroxy group in one molecule (b), and a diamino compound (c); a diazo-based positive type photosensitizer (B); and an epoxy resin (C). Using the positive type photosensitive polyimide resin composition of the present invention, a resin composition which allows easy patterning, satisfies various properties such as flame retardancy, heat resistance, mechanical properties and flexibility, and is capable of coping with high functionalization of various electronic devices, and a cured product thereof can be provided.
摘要:
To provide a polymer electrolyte membrane having excellent size stability and excellent mechanical strength that can sufficiently prevent the size change due to the swelling condition, the displacement of the polymer electrolyte membrane and the formation of wrinkles during the production of the polymer electrolyte fuel cell, and can prevent damage during the production and operation of the polymer electrolyte fuel cell. In a composite electrolyte membrane including a porous reinforcement layer made of a resin and an electrolyte layer made of a polymer electrolyte and laminated at least one main surface of the reinforcement layer, the direction having a high tensile modulus of elasticity in the reinforcement layer is substantially corresponded with the direction having a high rate of size change in the electrolyte layer.
摘要:
The invention relates to an epoxy resin composition containing (a) an epoxy resin and (b) a phenolic hydroxy group-containing polyamide resin having the structure represented by Formula (1), a method of curing the composition, a varnish, prepreg, or sheet using the composition, and an epoxy resin composition having the polyamide resin represented by Formula (1) as the active component.Cured products of the epoxy resin composition according to the present invention have a sufficient high flexibility when formed into a thin film, have a flame resistance even though the cured compositions do not contain a halogen flame retardant, an antimony compound, or the like and are superior in heat resistance and adhesiveness, and thus are extremely useful in a wide range of applications, for example, as molded materials, cast materials, laminate materials, paints, adhesives, resists, and the like. (wherein, l and m are averages, satisfying the formula: m/(l+m)=0.01; and l+m is a positive number of 2 to 200. Ar1 represents a bivalent aromatic group; Ar2 represents a phenolic hydroxyl group-containing bivalent aromatic group; and Ar3 represents: -ph(R1)n- or -ph(R2)n-X-ph(R3)n-, wherein, -ph(R1)n-, -ph(R2)n- and -ph(R3)n- represent respectively R1-substituted, R2-substituted and R3-substituted phenylene groups, or an unsubstituted phenylene group; n is an integer of 0 to 3; R1, R2 and R3 each independently represent a C1 to C3 alkyl group or a C1 to C3 alkoxy group; and X represents O, S, CO, SO2 or a single bond).