92results about How to "Workability is degraded" patented technology

An epoxy resin composition having a low viscosity around a room temperature and excellent reinforcing fiber impregnating properties provides a composite material having excellent heat resistance and mechanical properties including compressive strength. The epoxy resin composition includes an aromatic epoxy resin having at least di-functionality, an aromatic amine compound and / or an alicyclic amine compound, wherein 5 minutes after the main agent comprising the epoxy resin and the curing agent comprising the aromatic amine compound and / or the alicyclic amine compound are mixed, the composition shows a viscosity at 25° C. in the range of from 1 to 1500 mPa sec, and Tc, tc, and Tg satisfy the following equation (1):wherein k=0 when 60<=Tc<90 and k=0.35 when 90<=Tc<=200;Tc is the highest temperature (°C.) during the curing process and is defined by the formula 60<=Tc<=200;tc is the retention time (min) at the highest temperature and is defined by the formula 1<=tc<=120; andTg is the glass transition temperature of the epoxy resin composition after a lapse of tc (min) at Tc (°C.).

Disclosed herein is a semiconductor integrated circuit, wherein a desired circuit is formed by combining and laying out a plurality of standard cells and connecting the cells together, of which the cell length, i.e., the gap between a pair of opposed sides, is standardized, the plurality of standard cells forming the desired circuit include complementary in-phase driven standard cells, each of which includes a plurality of complementary transistor pairs that are complementary in conductivity type to each other and have their gate electrodes connected together, and N (≧2) pairs of all the complementary transistor pairs are driven in phase, and the size of the standardized cell length of the complementary in-phase driven standard cell is defined as an M-fold cell length which is M (N≧M≧2) times the basic cell length which is appropriate to the single complementary transistor pair.

The present invention provides an aluminum composite material having neutron absorbing power that improves the ability to absorb neutrons by increasing the content of B, while also being superior to materials of the prior art in terms of mechanical properties and workability. The aluminum composite material having neutron absorbing power contains in Al or an Al alloy matrix phase B or a B compound having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 9% by weight or less, and the aluminum composite material has been pressure sintered.

A portable electric cutting apparatus includes a housing for housing an electric motor for rotating a saw blade a fan provided in the housing and driven by the electric motor, a saw cover attached to the housing and having a saw blade housing part having a shape to cover an upper half of the outer periphery of the saw blade for housing a part of the saw blade, a base formed with an opening for allowing the saw blade to project downward from a bottom face which is slidable on a cut material. A discharge passage for discharging a fan wind produced by driving the fan is formed along an outer periphery of the saw cover. The fan wind is discharged through the discharge passage toward a front side of the base in the cutting direction.

In an electroacoustic transducer, a pair of coil terminals elongating from a voice coil are electrically connected to a pair of terminal members attached to a frame via a flexible printed circuit board, respectively. According to the configuration, even in a case where an electroacoustic transducer is used at a high sound pressure, breakage of the coil terminals hardly occurs. In the flexible printed circuit board, the width of an intermediate portion is set to be smaller than the widths of an end portion on the side of the coil terminals and an end portion on the side of the terminal members. Therefore, the flexibility of the intermediate portion can be enhanced, whereby transmission of characteristic vibration of the flexible printed circuit board to a diaphragm, and stress concentration in the vicinity of the end portions are effectively suppressed.

An adhesive seal material for an end portion a solar cell panel is an adhesive seal material which is bonded to an end portion of a solar cell panel. The adhesive seal material includes a rubber-based adhesive layer, and a non-adhesive layer partially covering a surface of the rubber-based adhesive layer.

A bulldozer includes a blade, an engine, a first exhaust treatment device, a second exhaust treatment device, a relay connection pipe, and an engine cover. The first exhaust treatment device is disposed in front of the engine and lower than the upper surface of thereof. The second exhaust treatment device is disposed above the first exhaust treatment device. The relay connection pipe is disposed above the first exhaust treatment device and below the second exhaust treatment device. The longitudinal directions of the first and second exhaust treatment devices extend along the vehicle lateral direction. As seen from the top of the vehicle, the second exhaust treatment device overlaps at least a part of the first exhaust treatment device. As seen from the side of the vehicle, the front edge of the first exhaust treatment device is positioned forward of the front edge of the second exhaust treatment device.

The invention provides a deep groove ball bearing which exhibits a long life even in a high-temperature environment or an environment involving the penetration of water in spite of its low alloying element content. The outer race, inner race and ball constituting the bearing are made of a steel which contains 0.3 to 0.4% of carbon, 0.3 to 0.7% of silicon, 0.3 to 0.8% of manganese, 0.5 to 1.2% of nickel, 1.6 to 2.5% of chromium, 0.1 to 0.7% of molybdenum and 0.2 to 0.4 of vanadium with the balance consisting of iron and impurities and in a total content of silicon and manganese of 1.0% or below, a total content of nickel and chromium of 2.3% or above and a total content of chromium, molybdenum and vanadium of 3.0% or below. Surface hardened layers are formed in the outer race, inner race and ball respectively and the surface hardened layers exhibit hardness of 725 to 800 HV, while the maximum particle size of carbides dispersed in the surface hardened layers is 10 μm or below and the area ratio thereof is 7 to 25%. Further, the inner parts exhibit hardness of 450 to 650 HV.

A cast material is formed, the cast material having a chemical component composition that contains at least one additional element selected from the group consisting of Fe, Ti, Sn, Ag, Mg, Zn, Cr, and P in an amount of at least 1.0 mass % and not more than 2.0 mass % in total, and in which a remaining portion includes Cu and inevitable impurities. An expanded material is formed by subjecting the cast material to plastic forming. An intermediate wire material is formed by wiredrawing the expanded material. The intermediate wire material is annealed. A single wire is formed by wiredrawing the annealed intermediate wire material at a cold deformation degree in a range of at least 77% and less than 99%. A twisted wire is formed by twisting a plurality of single wires, and the twisted wire is heated. Accordingly, a copper alloy twisted wire is obtained.

An optical cable comprises an optical fiber ribbon, a tension member and a sheath. The optical fiber ribbon is constructed by integrating a plurality of optical fibers arranged in parallel. The sheath is provided so as to surround the optical fiber ribbon. The sheath is used for protecting the optical cable. One optical fiber ribbon is arranged twistably within an inner space surrounded by the sheath.

A backlight unit 12 according to the present invention includes LEDs 17 as light sources, an LED board 18 mounting the LEDs 17 thereon, a chassis 14 that stores the LED board 18 therein and includes an attachment hole 14e, a body portion 24 that sandwiches the LED board 18 between the body portion 24 and the chassis 14 and holds the LED board 18, and a board holding member 20 including an attachment portion 25 that is protruded from the body portion 24 toward the chassis 14 to be inserted into the attachment hole 14e, and the board holding member 20 is configured to be rotatable along a plate surface of the chassis 14 between a holding position at which the attachment portion 25 overlaps with an edge of the attachment hole 14e in a plan view and sandwiches the edge of the attachment hole 14e between the attachment portion 25 and the body portion 24 and a non-holding position at which the attachment portion 25 does not overlap with the edge of the attachment hole 14e in a plan view and attaching and detaching of the attachment portion 25 from the attachment hole 14e is allowed.

An object of the invention is to provide a liquid resin composition with low viscosity while containing polymer particles. Further, another object of the invention is to provide a liquid resin composition containing a large quantity of polymer particles without increasing the viscosity of the liquid resin composition. A liquid resin composition of the invention is comprising a liquid resin component and polymer particles each having an elastic core layer, an intermediate layer formed with a monomer having two or more double bonds and coated on the core layer, and a shell layer coated on the intermediate layer; wherein the polymer particles are dispersed at a ratio of their volume average particle diameter (Mv) to their number average particle diameter (Mn) of 3 or lower.

A first exhaust treatment device, a second exhaust treatment device, and a relay connection pipe are disposed in front of an engine of a bulldozer. A relay connection pipe connects the first and second exhaust treatment devices. An injector assembly is attached to the relay connection pipe. The first exhaust treatment device, the relay connection pipe, and the second exhaust treatment device are arranged in sequence such that longitudinal directions thereof extend along the vehicle lateral direction. An attachment surface for the injector on the relay connection pipe is provided on an offset portion of the relay connection pipe at a connection portion between the first exhaust treatment device and the relay connection pipe. The distance between the injector assembly and a first side surface of the engine cover closest to the injector assembly is substantially equal to the distance between the first side surface and the first exhaust treatment device.

A prepreg comprising composite woven cloth or non-woven cloth composed of glass fiber and polyolefin fiber that are a main part of the cloth and a thermosetting resin composition that gives a cured product having a low thermal expansion coefficient, wherein the thermal expansion coefficient of the cured resin composition at 50 to 100 ° C. is 50 ppm / ° C. or less. A printed circuit board, multi layered circuit board, and electronic part are disclosed.

A room temperature-curable organopolysiloxane composition is provided. The composition comprises(A) 100 parts by weight of a organopolysiloxane represented by the following general formula (1):wherein R is a monovalent hydrocarbon group containing 1 to 5 carbon atoms, R1 is independently a substituted or unsubstituted monovalent hydrocarbon group containing 1 to 10 carbon atoms; n is an integer of at least 10; X is oxygen atom or an alkylene group containing 2 to 5 carbon atoms, and m is independently an integer of 0 or 1; or a mixture of such organopolysiloxane;(B) 50 to 150 parts by weight of a colloidal calcium carbonate having a specific surface area measured by BET method of at least 10 m2 / g;(C) 100 to 200 parts by weight of a heavy calcium carbonate having a specific surface area measured by BET method of up to 8 m2 / g;(D) 1 to 25 parts by weight of an organosilicon compound having at least 3 hydrolyzable groups bonded to silicon atom in one molecule represented byR2aSi(OR3)4-a wherein R2 is a monovalent hydrocarbon group containing 1 to 12 carbon atoms, R3 is a monovalent hydrocarbon group containing 1 to 5 carbon atoms, and a is 0 or 1; or its partial hydrolysate; and(E) 0.01 to 10 parts by weight of a curing catalyst. The mass ratio of the component (B) to the component (C) is less than 1.

Disclosed herein is a semiconductor integrated circuit, wherein a desired circuit is formed by combining and laying out a plurality of standard cells and connecting the cells together, of which the cell length, i.e., the gap between a pair of opposed sides, is standardized, the plurality of standard cells forming the desired circuit include complementary in-phase driven standard cells, each of which includes a plurality of complementary transistor pairs that are complementary in conductivity type to each other and have their gate electrodes connected together, and N (≧2) pairs of all the complementary transistor pairs are driven in phase, and the size of the standardized cell length of the complementary in-phase driven standard cell is defined as an M-fold cell length which is M (N≧M≧2) times the basic cell length which is appropriate to the single complementary transistor pair.

The invention relates to a pressure-sensitive adhesive for an optical film, comprising 0.02 to 2 parts by weight of a peroxide (B) and 0.01 to 5 parts by weight of an isocyanate-based compound (C) contained in 100 parts by weight of a (meth)acrylic polymer (A) consisting primarily of an alkyl(meth)acrylate and not containing a functional group reactive with an isocyanate group. By using the invented pressure-sensitive adhesive for an optical film, there can be obtained a pressure sensitive adhesion type optical film that can suppress warping and light leakage caused by a stress accompanying a dimensional change of members such as an optical film, has high durability, is excellent in handling ability in the manufacturing process and is excellent in quality.

The present invention provides a high tensile cold-rolled steel sheet having superior ductility, strain age-hardening characteristics, and crash resistance properties, and also provides a manufacturing method therefor. As a particular means, a thin cold-rolled steel sheet containing 0.05% to 0.30% of C, 0.4% to 2.0% of Si, 0.7% to 3.0% of Mn, 0.08% or less of P, 0.02% or less of Al, and 0.0050% to 0.0250% of N on a mass % basis is manufactured in which N / Al is 0.3 or more. This thin cold-rolled steel sheet is heated to a temperature between (an Ac1 transformation point) and (an Ac3 transformation point+50° C.), is cooled at a cooling rate of 5 to 150° C. / second in the range of at least 600 to 500° C., and is held in the temperature range of 350 to 500° C. This steel sheet has superior ductility, strain age-hardening characteristics having a DELTATS of 50 MPa or more, and crash resistance properties.

A prepreg comprising composite woven cloth or non-woven cloth composed of glass fiber and polyolefin fiber that are a main part of the cloth and a thermosetting resin composition that gives a cured product having a low thermal expansion coefficient, wherein the thermal expansion coefficient of the cured resin composition at 50 to 100° C. is 50 ppm / ° C. or less, is disclosed. A printed circuit board, multi layered circuit board, and electronic part are disclosed.

To provide a rubber composition having excellent wet grip performance while maintaining low heat build-up characteristics without lowering processability, abrasion resistance and rolling resistance. The rubber composition of the present invention comprises, based on 100 parts by weight of a diene rubber (A), 5 to 150 parts by weight of particular inorganic filler (B), 5 to 150 parts by weight of carbon black (C) having a nitrogen adsorption specific surface area of 70 to 300 m2 / g, and 1 to 20 % by weight of a silane coupling agent (D). The pneumatic tire of the present invention is obtained by using the rubber composition for the tread rubber.