Abstract: The present invention relates to the use of a polyolefin resin composition comprising a random copolymer of an alkenylsilane compound and an .alpha.-olefin compound as a material for adhesion or a coating material.

Abstract: A vessel according to the invention has a double-layer structure in which a vessel wall is constructed by an inner layer made of a special high-nitryl resin having excellent chemical resistance, gas barrier property, and the like and an outer layer made of a synthetic resin having excellent heat resistance, shock resistance, and the like. The vessel is suitable for use as a vessel for aerosol.

Abstract: The present invention relates to a high surface hardness transparent resin having excellent scratch resistance, heat resistance and chemical resistance, a glazing material, a protective cover for display devices, an optical lens and a hard coat material comprising the aforesaid resin, and a novel polymerizable monomer which is useful as a raw material of the above-mentioned resin.The monomer is represented by the formula (I) ##STR1## (wherein R is an aliphatic residue having or not having an halogen atom, an oxygen atom, an alicyclic ring, a heterocyclic ring or an aromatic ring, an alicyclic residue, or a heterocyclic residue, n is an integer of 1 to 4, when n=1, X is oxygen or sulfur, when n.gtoreq.2, X's are all oxygen or all sulfur, one X is oxygen while the other X or X's are sulfur, one X is sulfur while the other X or X's are oxygen, or two X's are oxygen while the other X's are sulfur).

Abstract: An electrolytic cell for the production of a nitrogen trifluoride gas by a molten salt electrolysis comprises electrodes, partition plates, bottom surface, liquid surface of an electrolytic bath and lids, at least some of these members being in a particular distance relationship.

Abstract: A thermosetting resin composition formed of a polyaminobismaleimide resin, which is composed of a bismaleimide compound and a diamine compound, and a powdery inorganic filler. The composition has excellent heat resistance as well as superb mechanical properties at high temperature not to mention room temperature, and is expected to find wide-spread commerical utility in electric and electronic components such as sealing materials, sockets and connectors and other applications.

Abstract: According to the invention, a probe laser beam having a wavelength which is different from that of the laser beam emitted from a laser apparatus is introduced into the apparatus to adjust the optical device so that any fluctuations in the probe laser beam passing through or reflected from the optical device may be eliminated. Therefore, any fluctuations in output power and/or the oscillation wavelength of the narrowed bandwidth laser beam emitted from the apparatus can be directly detected and the laser apparatus can be so controlled as to ensure a stabilized operation under an optimum condition.

Abstract: The present invention relates to a process for producing a resin useful in plastic lenses, to plastic lenses containing the resin and to a process for producing the lenses.

Abstract: This invention discloses electrophotogrpahic toners and the methods for their preparation. The electrophotographic toners contain resin and coloring agents as primary components. The resin is a non-crosslinked polymer of vinyl monomers or its mixtures, and has a number average molecular weight (Mn) of 2,000-15,000, a Z average molecular weight (Mz) of not less than 400,000 and Mz/Mn of 50-600. The electrophotographic toners exert an excellent fixing ability at high duplication speed or at lower temperatures.

Abstract: The present invention relates to a polypropylene resin composition having high dielectric strength comprising:A) from about 50% to about 80% by weight of a crystalline ethylene-propylene block copolymer having a melt flow index (MI) at 230.degree. C. of not less than about 3 g/10 min and an ethylene content of not less than about 4% by weight;B) from about 15% to about 30% by weight of mica having an average particle size of from about 15 to about 50 microns and the following particle size distribution:.gtoreq.30 microns from about 10% to about 80% by weight.gtoreq.20 microns from about 30% to about 95% by weight.gtoreq.10 microns not less than about 60% by weight.gtoreq.5 microns not less than about 80% by weightC) from about 5% to about 20% by weight of talc having an average particle size of from about 15 to about 40 microns and the following particle size distribution:.gtoreq.30 microns from about 20% to about 65% by weight.gtoreq.20 microns from about 40% to about 80% by weight.gtoreq.

Abstract: At least one of ammonia and ethylenediamine is reacted with monoethanolamine in the presence of a catalyst containing phosphoric acid or its condensate in order to prepare acyclic ethyleneamines, and the catalyst can be improved in performance and the life of the catalyst can be prolonged by feeding a phosphorus-containing material to a reaction system during the reaction. In addition, the catalyst having a deteriorated performance can be reactivated by adding the phosphorus-containing material to the catalyst.

Abstract: A resin composition for sealing semiconductors which comprises (a) an epoxy resin having a specific structure, a modified epoxy resin composed of (i) an epoxy resin having a specific structure or a graft polymer of an epoxy resin having a specific structure and a vinyl polymer and (ii) a silicone polymer in an oily state or as particles having an average particle size of not more than 1.0 micron, which are uniformly dispersed in the epoxy resin or the graft polymer, (b) a hardening agent (c) an inorganic filler and (d) a special polymaleimide is herein provided. The resin composition for sealing semiconductors exhibits a low thermal expansion coefficient and a low elastic modulus, generates low stress when thermal shock is applied thereto and exhibits high heat resistance during soldering even after moisture absorption.

Abstract: The present invention provides polyolefin resin compositions, comprising (i) a polymer containing an alkenylsilane compound and an inorganic filler and (ii) a polyolefin compound which provide molded articles having excellent Izod impact strength, tensile yield strength and stiffness and are also useful for the production of surface-coated molded articles.

Abstract: Photochlorination of aromatic compounds having at least one alkyl side chain is carried out in the presence of an alkylene polyamine previously mixed with an aromatic compound having at least one chlorinated side chain whereby side reactions are suppressed.Aromatic compounds having a monochlorinated side chain are stabilized with an alkylene polyamine. Stainless steel apparatuses can be used in both cases.

Abstract: Isopropanol is prepared through catalytic hydrogenation of acetone by feeding hydrogen gas and acetone liquid into a reactor having a fixed catalyst bed from its top to form a cocurrent gas/liquid downflow while maintaining the catalyst bed in a trickle bed state. This process can produce isopropanol at a high reaction rate in high yields using a simple reactor.

Abstract: A release film composed of a laminate comprising(A) a layer of a flexible polyolefin as an interlayer, and(B) two layers of crystalline polymethylpentene formed on both sides of the interlayer.

Abstract: A heat-resistant, flame-retardant epoxy resin composition is provided by combining or reating members selected from a polyfunctional epoxy resin, a bisphenol type epoxy resin, a highly halogenated bisphenol type epoxy resin, a low halogenated bisphenol type epoxy resin, and a halogenated bisphenol. The composition is suitable as a laminate useful for printed circuit boards.

Abstract: Provided herein is a propylene-ethylene copolymer composition which comprises (a) 10 to 25 parts by weight of a first propylene-ethylene copolymer containing 90 wt % or more of ethylene and (b) 75 to 90 parts by weight of a second propylene-ethylene copolymer containing 0.5 to 2.5 wt % of ethylene, the first copolymer having intrinsic viscosity of .eta..sub.a and the second copolymer having an intrinsic viscosity of .eta..sub.b, said intrinsic viscosities being defined by .eta..sub.a -.eta..sub.b =-0.2 to +1.2 dl/g.

Abstract: The actuator for a door locking apparatus for a vehicle has an output shaft rotatably mounted on the body thereof, a cylindrical worm designed to be rotated by a motor, and a shaft tube having an internal toothed portion that is brought into mesh engagement with the cylindrical worm and designed to move between locked and unlocked positions along the axial direction of the worm when the worm is rotated. An elongate hole is formed in the arm fixed to the output shaft, and the pin of the shaft tube is brought into engagement with this elongate hole. A projection is provided on the shaft tube at such a position as to be closer to the output shaft than the pin is. The actuator has a torsion spring for returning the shaft tube from the locked or the unlocked position to a neutral position as an intermediate position between the two positions when the motor is switched off.

Abstract: The invention relates to a block copolymer of propylene and a process for preparing the same comprising (a) polymerizing propylene or .alpha.-olefins mainly comprising propylene in the presence of a catalyst comprising a transition metal catalyst and an organometal compound; (b) copolymerizing .alpha.-olefins mainly comprising propylene and ethylene, wherein in at least one of steps (a) and (b) copolymerization is carried out with an alkenylsilane compound.

Abstract: Disclosed is a method for measuring the thermal diffusivity in the thickness direction of a thin sample plate, which has the steps of forming a conductive thin layer on at least one surface of said thin sample plate to allow the thin film to function as an ac heater generating joule heat, applying an ac current modulated with a given modulation frequency to the ac heater (conductive thin layer) so as to produce ac joule-heating, generating an oscillation response corresponding to said ac joule-heating on the opposite surface of the ac heater, and measuring the phase shift between said oscillation response, and the ac joule-heating, thereby obtaining the thermal diffusivity in the thickness direction of said sample plate. Apparatus useful for the method are also disclosed.