41results about How to "Poor workability" patented technology

Disclosed are a curable composition characterized by using a curable composition including an organic polymer (A1) having one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds in which the one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds are silicon-containing functional groups each having three or more hydrolyzable groups on one or more silicon atoms thereof; and a method for controlling the recovery properties, durability and creep resistance of the cured article. Herewith, the present invention provides a curable composition capable of giving a cured article excellent in recovery properties, durability and creep resistance, and a method for controlling the recovery properties, durability and creep resistance of the cured article.

A heat radiator 1 includes an insulating substrate 3 whose first side serves as a heat-generating-element-mounting side, and a heat sink 5 fixed to a second side of the insulating substrate 3. A metal layer 7 is formed on a side of the insulating substrate 3 opposite the heat-generating-element-mounting side. A stress relaxation member 4 intervenes between the metal layer 7 of the insulating substrate 3 and the heat sink 5. The stress relaxation member 4 is formed of an aluminum plate 10 having a plurality of through holes 9 formed therein, and the through holes 9 serve as stress-absorbing spaces. The stress relaxation member 4 is brazed to the metal layer 7 of the insulating substrate 3 and to the heat sink 5. This heat radiator 1 is low in material cost and exhibits excellent heat radiation performance.

A close-contact multi-layer type diffractive optical element having a homogeneous low-refractive-index and high-dispersion resin layer is produced with satisfactory workability. Among two optical members constituting a diffractive plane, a low-refractive-index and high-dispersion member is formed, using a resin precursor composition containing bifunctional fluorine-containing (meth)acrylate and bifunctional (meth)acrylate having a fluorene structure.

[Problem]A metal laminated substrate for an oxide superconducting wire is provided at a low cost. The metal laminated substrate has high strength, and stable high biaxial orientation in the longitudinal direction.[Means for Resolution]A metal laminated substrate for an oxide superconducting wire is manufactured such that a non-magnetic metal plate T1 having a thickness of not more than 0.2 mm and a metal foil T2 made of Cu alloy which is formed by cold rolling at a draft of not less than 90% and has a thickness of not more than 50 μm is laminated to each other by room-temperature surface active bonding, after lamination, crystal of the metal foil is oriented by heat treatment at a temperature of not less than 150° C. and not more than 1000° C. and, thereafter, an epitaxial growth film T3 made of Ni or an Ni alloy having a thickness of not more than 10 μm is laminated to the metal foil.

A lens unit includes a front group, a stop, and a rear group, in order from the object side toward the image side. The front group includes at least: a first lens having a negative meniscus shape; a negative second lens formed from a plastic and having an aspherical surface; and a positive third lens, in order from the object side toward the image side. The rear group includes at least: a positive first lens; and a negative second lens, in order from the object side toward the image side.

There is provided an endoscope which can perform non-contact electric power supply and non-contact signal transmission and of which assembly, repair, and maintenance can be easily performed. A power receiving unit, an image signal transmission unit, and an endoscope side signal transmission and reception unit are disposed in the space (hollow structure) of a first connector of an endoscope. The first connector of the endoscope includes a first connector case and a second connector case disposed in order from a side of the second connector, and a division line between the first and second connector cases includes an inclined portion that is inclined with respect to an insertion direction of the first and second connectors.

The present invention provides a β type titanium alloy characterized by consisting of, by mass %, V: 15 to 25%, Al: 2.5 to 5%, Sn: 0.5 to 4%, O (Oxygen): not more than 0.20%, H: not more than 0.03%, Fe: not more than 0.40%, C: not more than 0.05% and N: not more than 0.02%, and the balance Ti and impurities. The present invention also provides a method of manufacturing a β type titanium alloy characterized by comprising the following steps (a) to (c): (a) Preparing a β type titanium alloy consisting of, by mass %, V: 15 to 25%, Al: 2.5 to 5%, Sn: 0.5 to 4%, O (Oxygen): not more than 0.20%, H: not more than 0.03%, Fe: not more than 0.40%, C: not more than 0.05% and N: not more than 0.02%, and the balance Ti and impurities. (b) Pickling the B type titanium alloy in an aqueous solution including 3 to 40 mass % of HF, and (c) Further pickling the B type titanium alloy in an aqueous solution including 3 to 6 mass % of HF and 5 to 20 mass % of HNO3.

A driving mechanism comprises: (i) an actuator comprising: an electro-mechanical conversion element; and a driving member which moves according to the elongation or contraction of the electro-mechanical conversion element; and (ii) a driven member frictionally engaged with the driving member, wherein the actuator which allows the driven member to move along the driving member, and the driving member is a graphite composite.

On a seat base (11) of a floor member (10), a rear surface plate (11C), an operator's seat mounting plate (11D) on which an operator's seat (17) is mounted at a position higher than a footrest area (12) on which the foot is placed, and a duct accommodating space (14) formed in the vertical direction among the rear surface plate (11C), the operator's seat mounting plate (11D), and a rear position (12B) of the footrest area (12) are provided. An indoor air inlet duct (23) having the front surface side opened as a filter fitting hole (25) and introducing air in an occupying space (21) toward an indoor unit (22) of an air-conditioning unit is provided on the duct accommodating space (14). An indoor air filter (26) for catching dusts in the air is provided on the filter fitting hole (25) of the indoor air inlet duct (23).

The color image forming apparatus comprises a transfer belt device which feeds a transfer member such as a paper and a plurality of image forming units. The image forming units are disposed facing towards the transfer belt device. The transfer belt device, at least in a portion in which the image forming units have been disposed, is arranged such that it is inclined with respect to the ground. Each of the image forming unit forms a desired image and sequentially transfers the formed image on the transfer member fed by the transfer belt device.

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.

The invention belongs to the technical field of building materials, and particularly relates to SAP-based machine-made sand ultra-high performance concrete and a preparation method and application thereof. According to the invention, SAP and an expanding agent are co-doped, the self-shrinkage of the machine-made sand ultra-high performance concrete is compensated by utilizing the internal curing of the SAP and the characteristic that water released by the SAP can be utilized by the expanding agent, and the problem of water competition between the expanding agent and cement is solved. The ultra-high performance concrete provided by the invention has the characteristics of excellent working performance, relatively low apparent density, ultra-high strength, low shrinkage, relatively good durability and the like. The preparation process is simple, the problem of poor concrete workability caused by sharp machine-made sand particles can be solved, the problems of large additive adsorption capacity, difficult concrete pumping, large shrinkage cracking risk and the like caused by high stone powder content of machine-made sand are solved, the super high-rise concrete pumping performance canbe improved, the problems of large viscosity, large volume shrinkage and the like, caused by low water-binder ratio and high cementing material consumption, of an ultra-high-performance concrete mixture are solved, and the practical popularization value is achieved.

A method of preventing fouling structure including: preparing an antifouling pressure-sensitive adhesive tape including a base material layer (A) and a pressure-sensitive adhesive layer (A), and an easily adhering pressure-sensitive adhesive tape including a base material layer (B) easily adhering to the pressure-sensitive adhesive layer (A) and a pressure-sensitive adhesive layer (B); bonding the easily adhering pressure-sensitive adhesive tape to a surface of a structure, and bonding the antifouling pressure-sensitive adhesive tape onto the bonded easily adhering pressure-sensitive adhesive tape so that lengthwise directions of the tapes are non-parallel with each other, or bonding the two or more antifouling pressure-sensitive adhesive tapes and the at least one easily adhering pressure-sensitive adhesive tape onto a surface of a structure so that the antifouling pressure-sensitive adhesive tapes are prevented from overlapping each other and a junction between the antifouling pressure-sensitive adhesive tapes is on a surface of the base material layer (B).

In the electroconductive contact unit of the present invention, an electroconductive needle member 2 is made of a noble metal alloy having a high hardness and wear resistance, and formed with a gold plated layer 8 via a Ni under layer 7, and a flat surface 2e is formed by a tip portion thereof so as to expose the material of the needle member. Thereby, the durability of the needle member is ensured and the electroconductivity of the electric path between the needle member and coil spring is minimized on account of the gold plated layer. Even when the contact surface is soiled by solder deposition after repeated applications to contact objects such as solder balls, simply grinding the contact surface and revealing a new surface, the contact resistance between the contact surface and contact object can be kept unchanged by grinding so that the test can be conducted with the benefit of low resistance at all times.

Provided is a medicine cart (1) including a cassette (10) which is upwardly open and accommodates a plurality of medicine containers in an upright state in a row; a shelf plate (8) on which a plurality of the cassettes (10) are placed and which can be drawn out of a main body (3) of the medicine cart (1); and a pressing member (47) provided in each cassette (10) and adapted to forwardly press a rearmost medicine container, in which a locking means (61) for locking the pressing member (47) at a predetermined position in the cassette (10), and an unlocking means (62,63) for canceling the lock of the pressing member (47) by the locking means (61) if the shelf plate (8) is pushed in or drawn out, are provided.

An optical fiber manufacturing apparatus for manufacturing an optical fiber by drawing a optical fiber preform, including: a drawing furnace having therein a muffle tube into which the optical fiber preform is inserted and heating the optical fiber preform; and a first seal member which is disposed at an insert side of the drawing furnace so as to be coaxial with the drawing furnace and which seals the optical fiber preform inserted into an opening formed at the center thereof, wherein the first seal member includes a plurality of inner-circumference slits formed in the inner circumference thereof and a plurality of outer-circumference slits formed in the outer circumference thereof.

The invention discloses a viscosity-reducing type polycarboxylic acid water reducing agent preparation method, which comprises: (1) preparing an esterification monomer; (2) carrying out a copolymerization reaction; and (3) carrying out a neutralization reaction. According to the present invention, the viscosity-reducing type polycarboxylic acid water reducing agent is prepared by co-polymerizing 2-allyloxyethanol, a blend, VPEG, 2-methacryloyloxyethyl phosphorylcholine and an unsaturated acid, such that the phosphate radical, the carboxylate radical, the quaternary ammonium salt and the estergroup are introduced into the molecular structure of the polymer while the polymer structure is lightly cross-linked, wherein the product obtained by the esterification of the single carboxy in 2-phosphonobutane-1,2,4-tricarboxylicacid prepared by a 2-phosphonobutane-1,2,4-tricarboxylicacid esterification reaction, the product obtained by the esterification of the two carboxy in a small amount of2-phosphonobutane-1,2,4-tricarboxylicacid and the product obtained by the esterification of the three carboxy in a small amount of 2-phosphonobutane-1,2,4-tricarboxylicacid form the blend; and the prepared viscosity-reducing type polycarboxylic acid water reducing agent has advantages of viscosity reducing, water reducing, slump retaining and mud resistance, and can solve the problems of high viscosity, poor workability and rapid loss due to the high mud content in the current concrete raw materials.

Disclosed are a method of preparing a superabsorbent polymer, including adding a superabsorbent polymer with a water dispersion solution containing particles having i) a BET specific surface area of 300 to 1500 m2 / g and ii) a porosity of 50% or more, and a superabsorbent polymer prepared by the method.

There are provided a golf ball in which the depths of dimples after grinding, which greatly affect the trajectory of golf ball, can be controlled readily and exactly, and a golf ball molding die for manufacturing the golf ball. The golf ball molding die in accordance with the present invention comprises two die bodies in which a cavity for molding a golf ball is formed by joining the die bodies to each other; and a protrusion formed on the cavity side surface of at least one of the die bodies, the protrusion having a uniform height from the surface or an imaginary spherical surface on which the protrusion is assumed to be absent toward the center of the cavity, wherein when a parting line is at latitude zero degree, the protrusion is arranged in the range of from latitude about 10 degrees to latitude about 80 degrees.

There is provided a flexible wiring member capable of electrically connecting desired points separated in a length direction. The flexible wiring member includes conductor holding layers that are formed in a state of being stacked in a thickness direction and being electrically insulated from one another; power supply line conductors that have a wide width and are respectively disposed in both of a first conductor holding layer and a second conductor holding layer adjacent to each other in the thickness direction; and communication line conductors that have a width smaller than that of the power supply line conductors and are disposed in one of the first conductor holding layer and the second conductor holding layer, in which the conductor holding layers are formed by an insulating resin, and directly cover the power supply line conductors and the communication line conductors.