摘要:
Conventionally, a maleic acid-modified polypropylene oligomer has been used as a dispersant of clay in resins, and a hydroxy-modified polypropylene containing a hydroxyl group has been known as a resin modifier for improving the coatability of resins. But a dispersant or coatability improver having the clay dispersion effect and coatability improving effect for resins with as small amount of addition without decreasing the resin properties has not been known. The present invention provides a modifier for resins which comprises a dispersant (I) or a coatability improver (II) comprising a modified polyolefin (A) containing a hydrophobic group comprising a polyolefin (a) having a number average molecular weight of 1,500 to 100,000 and 0.2 to 10 double bonds per 1,000 carbons at the molecular terminus and/or within the molecule, and a hydrophilic group containing at least one onium base (b), and a number average molecular weight per (b) being 750 to 50,000, and a filler in combination.
摘要:
The present invention relates to a highly-rigid, flame-resistant polyamide composite material that is applicable to various uses such as in materials for electric and electronic parts, automobile parts, materials for house appliances, mechanical parts, and the like. The polyamide composite material according to the present invention is characterized in comprising (a) polyamide resin; (b) silicate complex comprising a layered silicate and triazine compound; (c) fibrous reinforcement; and (d) flame retarder. The polyamide composite material according to the present invention exhibits a high flame resistance, a superior performance with respect to its mechanical property, thermal property, dimensional stability, and reduced warp.
摘要:
An interpolative PCM decoder converts PCM signals having polarity bits, segment selection bits and uniform quantization bits into an analog signal. The PCM decoder may be used both for .mu.-law and A-law conversion by use of simple circuits and includes an AND gate circuit which produces a logical product between a selection signal for selecting a minimum unit of an analog value of a lower end of a segment and a control signal for change-over between the .mu.-law and the A-law, and a circuit generating the same analog values as the minimum unit of the analog value in accordance with an output of the AND gate circuit.
摘要:
A nonvolatile semiconductor memory device comprises a cell array including a plurality of first lines, a plurality of second lines intersecting the plurality of first lines, and a plurality of memory cells arranged in matrix and connected at intersections of the first and second lines between both lines, each memory cell containing a serial circuit of an electrically erasable programmable variable resistive element of which resistance is nonvolatilely stored as data and a non-ohmic element; and a plurality of access circuits operative to simultaneously access the memory cells physically separated from each other in the cell array.
摘要:
A change of performance of an electromagnetic suspension unit is detected. When an integral Σ|Vs′−Vs*| of an absolute value of a difference between an actual value Vs* and an estimated value Vs′ of an expansion/contraction velocity of a shock absorber is larger than a performance change threshold value Sth, it is detected that the performance of the electromagnetic suspension unit is changed. Further, when an integral Σ|Vs*| of an absolute value of the actual value Vs* is larger than an integral Σ|Vs′| of an absolute value of the estimated value Vs′ by a predetermined value, performance of the shock absorber is changed such that a damping force of the shock absorber is reduced. Thus, the performance change of the electromagnetic suspension unit is detected based on the expansion/contraction velocity of the shock absorber.
摘要:
A semiconductor memory device in an embodiment comprises memory cells, each of the memory cells disposed between a first line and a second line and having a variable resistance element and a switching element connected in series. The variable resistance element includes a variable resistance layer configured to change in resistance value thereof between a low-resistance state and a high-resistance state. The variable resistance layer is configured by a transition metal oxide. A ratio of transition metal and oxygen configuring the transition metal oxide varies between 1:1 and 1:2 along a first direction directed from the first line to the second line.
摘要:
A nonvolatile semiconductor memory device comprises a semiconductor substrate; a cell array block formed on the semiconductor substrate and including plural stacked cell array layers each with a plurality of first lines, a plurality of second lines crossing the plurality of first lines, and memory cells connected at intersections of the first and second lines between both lines; and a plurality of via-holes extending in the stacked direction of the cell array layers to individually connect the first or second line in the each cell array layer to the semiconductor substrate. The via-holes are formed continuously through the plural cell array layers, and multiple via-holes having equal lower end positions and upper end positions are connected to the first or second lines in different cell array layers.
摘要:
It is an object of the invention to improve utility in a suspension apparatus for a vehicle having an electromagnetic actuator and a hydraulic damper. In the suspension apparatus, a hydraulic damper is disposed between an electromagnetic actuator and a wheel-holding portion, and a cover tube is provided for accommodating a seal provided between a piston rod and a housing of the hydraulic damper. In the suspension apparatus according to the present invention wherein the hydraulic damper is disposed between the wheel-holding portion and the electromagnetic actuator, it is possible to effectively mitigate not only transmission of vibrations to the vehicle body from the wheel via the electromagnetic actuator but also transmission of vibrations to the electromagnetic actuator. Further, owing to the presence of the cover tube, entry of dust and the like into the hydraulic damper through the seal can be effectively prevented.
摘要:
The thermosetting resin composition according to the present invention includes a resin (A) containing two or more carboxyl groups and having a polyurethane structure, a strongly basic nitrogen-containing heterocyclic compound having pKa of 10.0 to 14.0 as a curing accelerator (B) and a curing agent (C). A cured product of the thermosetting resin composition is used as an insulating protective film for printed wiring boards, flexible printed wiring boards, chip-on-films, etc. The thermosetting resin composition of the invention has improved low-temperature curability and instantaneous curability, can realize tack-free property, can simultaneously realize low warpage property and electrical insulation property, does not contaminate a curing oven and the like by outgassing during heating, has a sufficient pot life, can form excellent cured products and insulating protective films, and can form solder resists and insulating protective films at low cost with good productivity.
摘要:
According to one embodiment, a semiconductor memory device includes: word lines; bit lines; an insulating film; an interlayer insulating film; and a resistance varying material. The word lines, the bit lines and the insulating film configure a field-effect transistor at each of the intersections of the word lines and the bit lines. The field-effect transistor has one of the word lines as a control electrode and one of the bit lines as a channel region. The field-effect transistor and the resistance varying material configure a memory cell having the field-effect transistor and the resistance varying material connected in parallel. Each of the bit lines includes a first surface opposing the word lines, and a second surface on an opposite side to the first surface. The resistance varying material is disposed in contact with the second surface and has a portion thereof in contact with the interlayer insulating film.