摘要:
Heat resistant polybenzoxazole resins useful as layer insulation films and protective films for semiconductor, layer insulation films for multilayer circuits, cover coats for flexible copper-clad sheets, solder resist films, liquid crystal-aligned films and the like. These resins have excellent thermal, electrical, physical and mechanical characteristics. Polybenzoxazole precursors are provided, represented by the general formula (A), and are used to obtain polybenzoxazole resins, represented by the general formula (D). In the formulas (A) and (D), n denotes an integer from 2-1000, and X denotes a structure having a formula selected from structures indicated at (B). In the formulas at (B), Y denotes a structure having a formula selected from those indicated at (C), and the hydrogen atom(s) on the benzene ring in these structures are optionally substituted.
摘要:
A power supply device in which bars BB extend in one direction and connect the terminals of the battery cells adjacent to each other. The lines (20) are electrically connectable to the bars BB. The tabs TB electrically connect the bars BB to the lines (20). The bar BB is formed of a clad plate formed of a first metal (3A) and a second metal (3B). The bar BB includes first and second holders (3a and 3b), and a tab holder. The first and second holders (3a and 3b) are arranged in the first and second metals, respectively, and hold the terminals at holding positions. The tab holder is arranged in the first metal (3A), and holds the tab TB at a holding position. The impedance between the first holder (3a) and the tab holder is substantially equal to the impedance between the tab holder and the second holder (3b).
摘要:
Supply of supplementary fuel is controlled by activation of a valve in response to certain engine operating conditions or parameters. For example, the supplementary fuel may be supplied to facilitate starting and warming up a cold engine, or to cool and/or slow down an engine operating above a threshold speed.
摘要:
To provide a catalytic converter that reduces non-uniformity of temperature of a catalyst support and that can approach a uniform temperature distribution, and a structural body for supporting a catalyst that structures this catalytic converter. At a catalyst support, gradually decreasing width portions, at which a width thereof gradually decreases toward electrode centers, are formed at regions where electrodes, are contactingly disposed, as seen in a cross-section orthogonal to a direction in which exhaust flows. The width is shorter than a length of a center line at a given position. Heat generation and heat dissipation of the catalyst support are balanced overall.
摘要:
A composition for forming a chemical mechanical polishing pad having polishing characteristics such as a high polishing rate, an excellent planarity of the polished object, and less scratches of the polished object. The composition includes (A) a polyurethane having a carbon-carbon double bond on a side chain and (B) a cross-linking agent. The polyurethane (A) is preferably a thermoplastic polyurethane (A′) obtained by mixing at least components (a11) to (a13) and component (a2) in a proportion satisfying the following conditions (1) and (2) and reacting them.
摘要:
There is provided a slurry for a secondary battery electrode and an electrode for a secondary battery that produce satisfactory charge-discharge characteristics for secondary batteries, as well as a secondary battery that exhibits satisfactory charge-discharge characteristics. The invention provides a slurry for a secondary battery electrode comprising an electrode active material and an ambient temperature molten salt composed of a cation component and an anion component, an electrode for a secondary battery wherein an electrode active material layer is formed by coating the slurry for a secondary battery electrode onto a current collector, a process for production of an electrode for a secondary battery whereby the slurry for a secondary battery electrode is coated onto a current collector metal foil to form a coated film, and a secondary battery comprising a positive electrode and/or negative electrode fabricated using the electrode for a secondary battery, and an electrolyte.
摘要:
[Problem] To provide a safe ocular lens material having high oxygen permeability, excellent surface wettability, the excellent lubricity/easy lubricating property of surface, little in surface adhesive and superior flexibility and stress relaxation, in addition, suppressing elution of a monomer from the final product.[Means for Solving the Problem] An ocular lens comprising a compound (A) having an ethylenically unsaturated group and polydimethylsiloxane structure through a urethane bond and an 1-alkyl-3-methylene-2-pyrrolidone (B).[Selected Figure] None
摘要:
A heat-resistant seal material includes 100 parts by weight of a ternary fluoroelastomer, 1 to 30 parts by weight of vapor-grown carbon fibers having an average diameter of more than 30 nm and 200 nm or less, and carbon black having an average particle diameter of 25 to 500 nm. The heat-resistant seal material contains the vapor-grown carbon fibers and the carbon black in an amount of 20 to 40 parts by weight in total. The heat-resistant seal material has a compression set when subjected to a compression set test at a compression rate of 25% and a temperature of 200° C. for 70 hours of 0 to 15% and a dynamic modulus of elasticity at 200° C. (E′/200° C.) of 30 to 100 MPa.
摘要:
The invention aims to improve the charge/discharge cycle characteristics of an anodic carbon material for a lithium secondary battery. An anodic carbon material for a lithium secondary battery according to the present invention comprises: particles containing carbon, or a metal or metalloid, or an alloy, oxide, nitride, or carbide thereof, the particle capable of absorbing and releasing lithium ions; a resinous carbon material enclosing the particles; and a network structure formed from carbon nanofibers and/or carbon nanotubes that bond to the surfaces of the particles and that enclose the particles.
摘要:
There is provided a slurry for a secondary battery electrode and an electrode for a secondary battery that produce satisfactory charge-discharge characteristics for secondary batteries, as well as a secondary battery that exhibits satisfactory charge-discharge characteristics.The invention provides a slurry for a secondary battery electrode comprising an electrode active material and an ambient temperature molten salt composed of a cation component and an anion component, an electrode for a secondary battery wherein an electrode active material layer is formed by coating the slurry for a secondary battery electrode onto a current collector, a process for production of an electrode for a secondary battery whereby the slurry for a secondary battery electrode is coated onto a current collector metal foil to form a coated film, and a secondary battery comprising a positive electrode and/or negative electrode fabricated using the electrode for a secondary battery, and an electrolyte.