Abstract: There are here disclosed a resin composition comprising a block or a graft copolymer (A) having a polyamino acid as a hydrophilic segment (a-1), and a degradable polymer as a hydrophobic segment (a-2), and a resin (B); and a method of accelerating the hydrolysis of a resin and inhibiting the heat deterioration thereof by mixing this copolymer (A) with the resin (B).

Abstract: An electricity leading method for a gas diffusion electrode is provided, by which a gas diffusion electrode is easily fixed to a cathode current collecting frame, the contact part has reduced electrical resistance, even an electrically insulating mesh sheet can be utilized as a gas chamber, and only the gas diffusion electrode can be replaced in renewal of the electrode. The method includes preparing a gas diffusion electrode by sandwiching a conductor made of a highly conductive metallic mesh or spongy processed material in catalyst layers or attaching a catalyst layer onto the conductor while leaving the conductor exposed in the outer periphery of the electrode, and electrically connecting the exposed part of the conductor to a cathode chamber current collecting frame.

Abstract: A vehicle door latch device comprises a block member (66) displaceable between a blocking position (B) for restricting a displacement of a lock lever (23) to an unlocked position (UL) by a mechanical engagement with the lock lever (23) and an unblocking position (UB), a connecting lever (72) connected to an inside lock button (36) with no substantial lost-motion, and a connecting spring (73) for connecting the connecting lever (72) and the lock lever (23). The connecting lever (72) is substantially displaceable integrally with the lock lever (23) by an action of the connecting spring (73) when the block member (66) is located at the unblocking position (UB). The connecting lever (72) is displaced with respect to the lock lever (23) against a spring force of the connecting spring (73) when the unlocking operation of the inside lock button (36) is carried out at a state where the block member (66) is located at the blocking position (B).

Abstract: A method for preparing a glass substrate for use in making a magnetic recording medium is herein disclosed and the method is characterized in that an abrasive liquid containing a CeO2-base abrasive having an average particle size, D50, of not more than 0.5 &mgr;m in an amount of not more than 1% by mass and an abrasive cloth are used in a step for final polishing the glass substrate for magnetic recording media. The method permits easy preparation of a glass substrate for use in making a magnetic recording medium, which has a uniform surface, is substantially free of any surface defect and has a smooth surface having an extremely low surface roughness.

Abstract: The present invention discloses a hydrogenated ring-opening metathesis polymer comprising at least unit (A) of formula (1), unit (B) of formula (2) and unit (c) of formula (3): wherein a constituent molar ratio of the structural unit (A)/(B) is from 1/99 to 99/1 and a constituent molar ratio of the structural unit (B)/(C) is from 30/70 to 100/0 and, furthermore, a ratio of a weight-average molecular weight Mw to a number-average molecular weight Mn, that is Mw/Mn is from 1.0 to 2.0.

Abstract: To reduce warping of a copper clad laminate coated with copper foils of different thicknesses on both sides, and thereby to improve production efficiency of the printed-wiring boards, there is provided a copper clad laminate coated with copper foils of different thicknesses on both sides, wherein a first copper foil on one side of the laminate is not recrystallizable by hot pressing for production of said laminate and a second foil on the other side is recrystallizable by the hot pressing and thicker than the first foil.

Abstract: A laminated film comprises at least an aluminum layer and, superimposed on one side thereof by extrusion lamination, a linear low-density polyethylene layer, this linear low-density polyethylene layer prepared with the use of a metallocene olefin polymerization catalyst and having a density of 0.895 to 0.930 g/cm3 and an MFR (190° C.) of 0.1 to 100 g/10 min, wherein the linear low-density polyethylene layer at its surface exhibits an oxygen concentration of linear low-density polyethylene per se ranging from 1.0 to 1.4 atomic %. The laminated film which has an excellent balance of aluminum bond strength and heat sealing properties of linear low-density polyethylene layers and it can be provided at low cost. Further, a laminated film comprising at least the linear low-density polyethylene layer, the aluminum layer and a substrate layer arranged in this order can be provided at low cost by adding a layer or layers to the laminated film obtained by the extrusion lamination.

Abstract: A paste to be fired at a temperature lower than melting point of silver for forming a circuit board comprising surface-modified silver powder consisting essentially of metal silver particles having an average particle size of not more than 10 &mgr;m and at least one member selected from the group consisting of oxides and double oxides containing at least one metal element selected from the group consisting of those belonging to Groups 2 to 14 of Periodic Table whose atomic number falls within the range of from 12 to 82, which is adhered to the surface of the individual metal silver particles. The surface-modified silver powder has an elevated sintering-initiation temperature and a reduced rate of heat shrinkage due to sintering. Therefore, the surface-modified silver powder is particularly suitable for use in making a circuit board, in particular an LTCC circuit board.

Abstract: A sulfur-containing O-(meth)acrylate compound of the following formula (1) is useful as a starting material for a resin composition used in optical applications such as a lens; wherein R represents hydrogen atom or methyl group; 1 represents an integer from 1 to 3; B is when B is  n is 2; m is 1 or 2; A is selected from the following groups: wherein m represents 1 or 2; each ring may be substituted by one or more alkyl, alkylthio or alkoxy groups having 1 or 2 carbon atoms; p and q are 0 or 1, while m is 1 when p is 1; when B is  n is 1; m is 2 or 3; A is selected from the following groups: —(CH2)r—S—(CH2)r—, —(CH2)r—S—S—(CH2)r—.

Abstract: The present invention is intended to provide an olefin polymerization catalyst exhibiting excellent olefin polymerization activity and capable of producing polyolefins of excellent properties and to provide a process for olefin polymerization using this catalyst.

Abstract: A sodium chloride electrolytic cell is provided, comprising a gas diffusion electrode that allows smooth supply and discharge of catholyte for electrolyzing sodium chloride and allows oxygen gas to come in good contact therewith. The sodium chloride electrolytic cell comprises an anode chamber having an anode into which an aqueous solution of sodium chloride and a cathode chamber having the foregoing gas diffusion electrode for producing an alkaline aqueous solution, the anode chamber and the cathode chamber being divided by an ion exchange membrane. The sodium chloride electrolytic cell is arranged to effect electrolysis in such a manner that there occurs no pressure differential between the catholyte chamber and the gas chamber in the gas diffusion electrode. Further, a nickel mesh substance is fitted in a concave portion having the same size as that of the gas diffusion electrode formed in the central portion of a thin nickel plate.

Abstract: A polymerizable composition according to the present invention is characterized by that it comprises a compound (a) having at least one structure represented by the following formula (1): wherein R1 is a divalent hydrocarbon group having 1 to 10 carbon atoms, R2, R3 and R4 each independently represents a hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom; X stands for an S or O atom and the average number of S atom is at least 50% based on the total number of S and O atoms which consist of the three membered ring; and X′ is —S— or —O—, at least two compounds (b) having a tertiary amino group substituted with aliphatic and/or aromatic group(s), which are each different in catalytic activity as a polymerization catalyst, with the proviso that the ratio of the total of the tertiary amino groups in the at least two compounds (b) to the episulfide groups in compound (a) is in the range of 0.0001 to 0.

Abstract: The present invention discloses:

Abstract: A process for producing high-purity nitrogen trifluoride gas by molten salt electrolysis using a nickel electrode and ammonium hydrogenfluoride as an electrolyte, wherein carbon element constituting impurity gases entrained in a crude gas, among impurities in the nickel electrode as an anode is controlled to an amount of 400 wt ppm or less. The process allows high-purity nitrogen trifluoride gas to be produced with a purity of 4N or higher.

Abstract: An amphipathic compound represented by any of the following Formulas: (R1 is a linear or branched, saturated hydrocarbon group having 6 to 48 carbon atoms, or a linear or branched, unsaturated hydrocarbon group containing 1 to 12 unsaturated double bond and having 6 to 48 carbon atoms; Y is NH, N—(CH2—CH═CH2), or O; Q is —CH2—C(R2)═CH2 or —R4—O—CO—C(R2)═CH2; and M is alkali metal, an ammonium group, or —(CH2CH2O)mH), a copolymer of the amphipatic compound with a copolymerizable ethylenically unsaturated compound and, a paper making additive containing a water soluble or dispersible high molecular compound as an active ingredient and processes for producing these high molecular compounds.

Abstract: The present invention relates to a novel production method of 4,6-diaminoresorcin, and to 2-sulfonic acid-4,6-dinitroresorcin as its intermediate and salts thereof.

Abstract: A control method of a powered sliding device having a wire drum coupled through a wire cable with a sliding door slidably attached to a vehicle body, a motor for rotating the wire drum by the electric power from a battery, a voltmeter for measuring the battery voltage of the battery, and a sensor for detecting the sliding speed of the sliding door, comprises the steps of: measuring the sliding speed SS by the sensor when a predetermined time has elapsed from an actuation of the motor; comparing the measured sliding speed SS with the lower limited speed LLS of the sliding door determined according to the degree of the battery voltage BV measured by the voltmeter; and stopping or reversing the motor when the sliding speed SS is slower than the lower limited speed LLS.

Abstract: A thermosetting powder coating composition which comprises a resin composition (A) having a sea-island type microphase separation structure constituted of a continuous phase (a sea phase) comprising an acrylic copolymer and a dispersion phase (an island phase) comprising a thermoplastic elastomer and a curing agent (B) and in which the total amount of a thermosetting elastomer (a-2) constituting the dispersion phase is in the range of 0.5 to 20 parts by weight with respect to 100 parts by weight of the resin composition (A). This powder coating composition is excellent in chipping resistance, impact resistance, weathering resistance and appearance properties, and it is particularly suitable for the coating of vehicles.

Abstract: A vehicle door latch device comprises a latch engageable with a striker and rotatable from an unlatched position to a full-latched position via a half-latched position, a power closing mechanism rotating the latch from the half-latched position to the full-latched position by motor power, a ratchet holding an engagement state between the latch and the striker by engaging with the latch, and a power opening mechanism releasing the ratchet from the latch by motor power. The power opening mechanism and the power closing mechanism are actuated by a single common motor, respectively.

Abstract: A process for preparing a polyester comprising the steps of blending (A) polyethylene terephthalate before solid phase polymerization having an intrinsic viscosity of 0.3 to 0.8 dl/g in an amount of 40 to 99% by weight, with (B) polyethylene naphthalate before solid phase polymerization having an intrinsic viscosity of 0.3 to 0.7 dl/g in an amount of 1 to 60% by weight, and subjecting the blend to solid phase polymerization. The process of the invention can provide a polyester having excellent gas barrier properties, transparency and heat resistance and hardly generating acetaldehyde.