698results about How to "Improved shape stability" patented technology

A substrate for artificial leather comprising a nonwoven fabric of bundles of microfine filaments. The substrate for artificial leather simultaneously satisfies the following requirements 1 to 4: (1) the bundle of microfine filaments comprises 8 to 70 microfine filaments having a cross-sectional shape of nearly circle; (2) the bundle of microfine filaments has a cross-sectional area of 170 to 700 μm² and a flatness of 4.0 or less; (3) on a cross section parallel to a thickness direction of the nonwoven fabric body, cross sections of the microfine fiber bundles exist in a density of 1500 to 3000/mm²; and (4) on a cross section parallel to a thickness direction of the nonwoven fabric body, gaps between the microfine fiber bundles have a size of 70 μm or less. By satisfying the requirements, the substrate for artificial leather combines high level of sensuous qualities and high level of physical properties which have been considered to be mutually exclusive.

A geogrid using fiber-reinforced polymeric strips and its producing method are disclosed. The geogrid of a lattice shape includes plural longitudinal fiber-reinforced polymeric strips longitudinally arranged in parallel at regular intervals and formed by reinforcing fiber in a thermoplastic polymer resin, and plural lateral fiber-reinforced polymer strip laterally arranged in parallel at regular intervals and formed by reinforcing fiber in a thermoplastic polymer resin. Each longitudinal fiber-reinforced polymer strip has at lease one first contact point crossed with the lateral fiber-reinforced polymer strip on the upper surface and at least one second contact point crossed with the lateral fiber-reinforced polymer strips on the lower surface. The contact points are fixed by welding the longitudinal and lateral fiber-reinforced polymer strips. The geogrid is excellent in installation capacity, frictional feature and shape stabilisation and shows high tensile strength and low tensile strain and low creep deformation.

The present invention provides, as a separator for fuel cell which is lightweight, can be easily made thin, and which has superior corrosion resistance and shape stability, a fuel cell 100 containing a separator for fuel cell 10, wherein a conductor pattern 2 is formed on one principal plane 1A of an insulation layer 1 to form a groove for a gas flow path 3 sectioned by the conductor pattern 2 on this principal plane, a conductor terminal 4 is formed on the other principal plane 1B of the insulation layer 1, and this conductor terminal 4 and the conductor pattern 2 are electrically connected by a via hole 5 penetrating the insulation layer 1, and a membrane electrode assembly (complex having an electrolyte membrane and an electrode (fuel electrode, oxygen electrode) laminated thereon) 14 having the separator for fuel cell disposed on both surfaces.

In a nonwoven fiber assembly which comprises a fiber comprising a thermal adhesive fiber under moisture and in which the fiber are entangled with each other, the fibers are bonded at contacting points of the fibers by melting the thermal adhesive fiber under moisture to distribute the bonded points approximately uniformly, thereby obtaining a buffer substrate. The buffer substrate may further comprises a conjugated fiber comprising a plurality of resins which are different in thermal shrinkage and form a phase separation structure, and the conjugated fibers may have an approximately uniform crimps having an average curvature radius of 20 to 200 μm and are entangled with the fibers constituting the nonwoven fiber assembly. The buffer substrate can be obtained by a method comprising the steps of: forming a web from the fiber comprising the thermal adhesive fiber under moisture; and subjecting the obtained fiber web to a heat and moisture treatment with a high-temperature water vapor to melt the thermal adhesive fiber under moisture for bonding the fibers. The buffer substrate has a high air-permeability, an excellent cushion property and softness.

A resist composition for liquid immersion lithography process, which comprises: (A) a polymer comprising (a1) alkali-soluble constitutional units each comprising an alicyclic group having both (i) a fluorine atom or a fluoroalkyl group and (ii) an alcoholic hydroxyl group, wherein the polymer changes in alkali-solubility due to the action of acid; and (B) an acid generator which generates acid due to exposure to light, and a method for forming a resist pattern using the resist composition. By the resist composition or the method, an adverse effect of the immersion liquid can be avoided while achieving high resolution and high depth of focus.

A bonding wire comprising a core and a coating layer formed on the core, wherein the coating layer is formed from a metal having a higher melting point than the core, and further has at least one of the following characteristics; 1. the wet contact angle with the coating layer when the core is melted is not smaller than 20 degrees; 2. when the bonding wire is hung down with its end touching a horizontal surface, and is cut at a point 15 cm above the end and thus let drop onto the horizontal surface, the curvature radius of the formed arc is 35 mm or larger;

3. the 0.2% yield strength is not smaller than 0.115 mN/μm² but not greater than 0.165 mN/μm²; or 4. the Vickers hardness of the coating layer is 300 or lower.

A radiation-emitting and/or radiation-receiving semiconductor component comprising a radiation-emitting and/or radiation-receiving semiconductor chip, a molded plastic part which is transparent to an electromagnetic radiation to be emitted and/or received by the semiconductor component and by which the semiconductor chip is at least partially overmolded, and external electrical leads that are electrically connected to electrical contact areas of the semiconductor chip. The molded plastic part is made of a reaction-curing silicone molding compound. A method of making such a semiconductor component is also specified.

The present invention relates to a conical component forming device capable of preventing floating zone from being broken when the conical component is formed by adopting liquid-charging and drawing process and its forming method. Said conical component forming device is characterized by that its rigid edge-pressing ring is set over a concave die, in said rigid edge-pressing ring interior a recessed groove is cut, a flexible supporting ring is placed in the recessed groove interior, said concave die is placed on the fluid medium cavity, and its liquid-injecting hole is connected with its hydraulic system. Its forming method includes the following steps; (1), making the liquid-injecting hole on the cavity body be communicated with the hydraulic system; (2), placing a plate blank on the concave die; (3), making the rigid edge-pressing ring be moved downwards and apply edge-pressing force; and (4), making convex die be downwards moved until the plate blank is drawn into the concave die interior with the convex die so as to obtain a formed conical component.

The invention provides 600 MPa-level thick-specification hot rolling spoke steel and a manufacturing method thereof. The spoke steel comprises the following chemical constituents in mass percent: 0.06-0.12% of C, 0.20-0.60% of Si, 0.80-1.20% of Mn, 0.02-0.06% of Alt, 0.50-1.00% of Cr, 0.03-0.08% of P, smaller than or equal to 0.005% of S, smaller than or equal to 0.006% of N, and the balance of Fe and inevitable impurities. In the manufacturing method of the spoke steel, the billet heating temperature is 1,150-1,250 DEG C, and the finish rolling temperature is 760-840 DEG C; after rolling, a conventional cooling technology is used to cool the steel at a cooling rate of 20-100 DEG C per second to 350 DEG C below, and then the steel is reeled. The steel plate is good in processability and fatigue performance, and free of Nb, V, Mo, Ni and other elements, so as to save the production cost. The steel plate provided by the invention can be widely applied to the spoke production of steel wheels of commercial vehicles.

The method for producing a modified conjugated diene based (co)polymer, according to the present invention comprises

• • (a) obtaining a primarily modified polymer by carrying out a primary modification reaction wherein at least one member selected from the group consisting of an alkoxysilane compound and a silanol compound is introduced into the active alkali metal terminal of a conjugated diene based (co)polymer having an active alkali metal terminal, and
  • (b) obtaining a secondarily modified polymer (a modified conjugated diene based (co)polymer) by subjecting the above-obtained primarily modified polymer to reactions comprising (b1) and (b2).
  • (b1): a reaction with a condensation accelerator comprising a metal element.
  • (b2): a reaction with at least one member selected from the group consisting of inorganic acids and metal halides.

An object of the present invention is to provide a high-performance bonding wire that is suitable for semiconductor mounting technology, such as stacked chip bonding, thinning, and fine pitch mounting, where wire lean (leaning) at an upright position of a ball and spring failure can be suppressed and loop linearity and loop height stability are excellent. This bonding wire for a semiconductor device includes a core material made of a conductive metal, and a skin layer formed on the core material and containing a metal different from the core material as a main component; wherein a relationship between an average size (a) of crystal grains in the skin layer on a wire surface along a wire circumferential direction and an average size (b) of crystal grains in the core material on a normal cross section, the normal cross section being a cross section normal to a wire axis, satisfies an inequality of a/b≦0.7.

The invention relates to an airship airbag with shape-control frames. The airship airbag with the shape-control frames comprises an airbag casing (1) and the shape-control frames; the airtight flexible airbag casing (1) is arranged on the outer layer of the air bag, is of a laminated structure on the whole and consists of a plurality of layered structures; the inside of every layered structure is fixedly connected with the shape-control frames which comprises a plurality of pairs of vertically-arranged folding frames (2) and two pairs of shaping frames (3) respectively hinged to two ends of the folding frames (2); the airbag casing (1) of every layered structure (4) is formed by splicing the airtight film covering pieces (91) of a plurality of convex curved surface unit (9), and every convex curved surface unit (9) not only comprises one elongated airtight film covering piece (91) but also comprises a pair of end-edge fixing parts (92) on the shaping frames (3) and a pair of pulling-resistant straps (93). The airship airbag with the shape-control frames can make full use of the space inside an airship, is good in regularity of expansion and shrinkage deformation and good in repeatability and stability, and can bear relative large overpressure when being inflated and expanded fully.

Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.

The invention discloses high air permeability non-woven base wallpaper. The traditional non-woven wallpaper has the defects of insufficient flexibility, poor paper surface third dimension and lower opacity. The high air permeability non-woven base wallpaper comprises the following components in percent by mass of 20-72 percent of plant fiber, 10-40 percent of non-plant fiber, 10-30 percent of pigment, 2.5-10 percent of adhesive and 0.1-1.5 percent of chemical addition agent, wherein the mass percent of the components is 100 percent in sum; the plant fiber contains chemical wood pulp, the non-plant fiber contains chemical fiber, and the pigment contains at least one inorganic pigment or organic pigment with covering function. The non-woven wallpaper contains the long fiber, can be directly printed, and has the advantages of high air permeability, natural grains in paper surface, soft hand feel of finished paper, good processing property, better shape stability, good printing effect, rich color, clear pattern and strong three dimension.

A plastic sheet having a plurality of creasing lines. Each creasing line is formed of a groove having a bottom surface and a pair of opposed side surfaces each slanting at a certain angle. A plurality of substantially semi-cylindrical ribs are formed on the bottom surface at substantially equal intervals along the longitudinal direction such that the ribs connect the opposed side surfaces. The area of a portion of the bottom surface not occupied by the ribs accounts for about 90% to about 95% the entire area of the bottom surface as measured when the ribs are not present.

The invention relates to an electromagnetism-assisted forming device and method for dissimilar metal composite boards and aims to solve the problem that existing metal composite boards are severely lapped and even broken in a drawing process. According to the forming device, a coil is arranged in an annular coil groove, a liquid channel is disposed between the inner wall of a blank holder and a cylinder, an upper liquid inlet channel is transversely arranged on the side wall of the blank holder, and a lower liquid inlet channel is transversely arranged on the side wall of a female die. The method includes placing the composite boards on the bottom surface of the blank holder; filling forward liquids into the liquid channel, filling reverse liquids into the female die, and exerting radial electromagnetic force Fd on the periphery of a flange of the composite board through the coil; forming the composite board under the combined action of a reverse pressure Fp2, a forward pressure Fp1 and the radial electromagnetic force Fd; and unloading a forward liquid pressure P1 and then a reverse liquid pressure P2, returning a male die and taking the formed part.

The method for producing a modified conjugated diene based (co)polymer, according to the present invention comprises a step of reacting a conjugated diene based (co)polymer with a metal halide compound to obtain a modified conjugated diene based (co)polymer, the conjugated diene based (co)polymer having a weight-average molecular weight of 150,000 to 2,000,000 and being obtained by bonding, to a polymer having at least a conjugated diene unit, an alkoxysilyl group and an optionally protected primary amino group. The method can satisfactorily produce a conjugated diene based (co)polymer which has a high Mooney viscosity, excellent shape stability and good processability.

The present invention relates to an active energy ray-curable organopolysiloxane resin composition that comprises an organopolysiloxane resin having an epoxy group and an aromatic hydrocarbon group and a photopolymerization initiator, as well as to a light-transmitting component that comprises cured bodies produced by irradiating the aforementioned organopolysiloxane resin with active-energy rays in the presence of the aforementioned photopolymerization initiator, and to a method for manufacturing the aforementioned light-transmitting component.