Abstract: The present invention provides a curable resin composition incorporating an oligomer containing blocked hydroxyl group, an epoxy-group containing compound, hydrolytic silyl-group containing compound, and a dissociation catalyst and/or curing catalyst, each possessing a specific molecular weight; a paint which uses this resin composition as a binder; and a coat-finishing method which coat-finishes any desired material using the aforementioned resin composition and paint. According to the present invention, it is possible to reduce viscosity, and consequently increase the coat non-volatile content and hence improve acid resistance, abrasion resistance, and the like. In addition, according to the present invention, it is possible to obtain a curable resin composition, paint using this curable resin composition, and coat-finishing method for this paint in which the aforementioned resin and paint have an extremely high utility and possess a high solid content wherein air bubbles and drip-runs are not generated.

Abstract: A method for the production of a sulfide group-containing thiol compound which comprises causing alkylene sulfide to react with a thiol compound in the presence of at least one basic catalyst selected from the group consisting of basic ion-exchange resins, quaternary ammonium compounds and alkyl pyridinium compounds, thereby inducing the ring-opening addition of the alkylene sulfide to the thiol compound. Further, a method for the production of a sulfide group-containing mercaptocarboxylic ester which comprises causing an alkylene sulfide to react with a mercaptocarboxylic ester.

Abstract: An interface circuit and method for transmitting a binary logic signal from a first electronic circuit to a second electronic circuit over a transmission line coupled to said first electronic circuit by a first terminal and to said second electronic circuit by a second terminal. The interface circuit transmits the binary logic signal by transmitting a pulse at a first potential at each falling transition of the binary logic signal, and a pulse at a second potential at each rising transition of the binary logic signal. At other times, the output terminal of a driver circuit is placed in a high-impedance state. A receiver circuit outputs a first logic Level upon receiving a pulse at the first potential, and outputs a second logic level upon receiving a pulse at the second potential. Output of these logic levels is maintained until the next pulse is received. The transmission line is preferably terminated at a potential intermediate between the first and second potentials.

Abstract: An object is to provide a method for the production of a sulfide group-containing thiol compound which comprises using a solvent capable of effecting the ring-opening addition reaction of an alkylene sulfide to a thiol compound without inducing the alkylene sulfide to polymerize. A method for the production of a sulfide group-containing thiol compound, which comprises effecting the ring-opening addition reaction of an alkylene sulfide represented by the general formula (1): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4, which may be identical or different, stand for a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, or an aromatic group of 6 to 15 carbon atoms) to a thiol compound in a solvent of an amide compound or urea substituent-containing compound.

Abstract: In a method for fabricating a solar cell, an amorphous silicon film of a first conductivity type is formed on a substrate, and nickel silicide is formed thereon. The amorphous silicon film is crystallized through heat treatment to obtain a crystalline silicon film of the first conductivity type. Residual nickel silicide on the surface of the crystalline silicon film of the first conductivity type is removed. Another crystalline silicon film of a second conductivity type is further formed on the surface of the crystalline silicon film of the first conductivity type.

Abstract: The present invention relates to a low solvent content-type resin composition, a low solvent content-type coating composition containing such a resin composition as a binder, and a method for coating such a coating composition. The resin composition comprises an oligomer containing an alicyclic epoxy group in a molecule and having a number average molecular weight (Mn) of 300 to 2000, a weight average molecular weight (Mw) of 300 to 4000 and an Mw/Mn ratio of 1 to 2.5. The coating composition comprises such a resin composition and a cationic polymerization catalyst, wherein the content of an organic solvent content is 0 to 40 wt. %. Since the present composition contains a low molecular weight oligomer, the viscosity of the composition is low even though the solid content is high. Accordingly, the content of the organic solvent can be much reduced.

Abstract: A metal purifying apparatus comprises a closed melting furnace equipped with a heater, molten metal holding crucible disposed within the furnace, a vertical hollow rotary shaft penetrating through a top wall of the furnace, a packing sealing off a clearance in the shaft penetrating portion of the top wall around the shaft, rotary drive means for rotatingly driving the shaft, a hollow rotary cooling body fixedly provided at a lower end of the shaft and having an interior space communicating with an interior space of the shaft, and a cooling fluid supply source for supplying a cooling fluid to the interior of the cooling body. The rotary shaft has disposed therein a cooling fluid discharge pipe with a lower end positioned below the top wall of the furnace.

Abstract: The present invention relates to an isolated DNA molecule encoding a cytochrome P450.sub.lpr polypeptide as well as the isolated cytochrome P450.sub.lpr polypeptide itself. The DNA molecule can be inserted as a heterologous DNA in an expression vector forming a recombinant DNA expression system for producing the polypeptide. Likewise, the heterologous DNA, usually inserted in an expression vector to form a recombinant DNA expression system, can be incorporated in a host cell to achieve this objective.The DNA molecule of the present invention can be utilized for control of larval or adult insects, bioremediation of insecticides, and conferring pesticide resistance to crop plants.

Abstract: A substrate according to the present invention is applicable to an optical disc on which an information signal is recorded. Formed on the substrate are prepits in the form of irregularities which generates a tracking error signal upon detected. The substrate serving as a electro-acoustic transducer comprises a flat surface portion including at least a portion on which a recording layer and/or a reflecting film layer are formed, and plural pairs of prepits formed on the portion. Two prepits constituting each pair of the prepits are disposed at positions offset from a center of a virtual recording track such that the center of the virtual recording track is interposed between the two prepits. The substrate is produced by injection-molding a synthetic resin material having a light-permeability and has a thickness of 1 mm or less at the portion on which the recording layer and/or the reflecting film layer are formed.

Abstract: The present invention relates to a low solvent content type-coating composition which provides the resultant coating with improved surface appearance, acid resistance, alkali resistance, weathering resistance, scuff resistance and solvent resistance, while the content of an organic solvent of the coating composition can be much reduced to 0 to 30% at 25.degree. C. The low solvent content type-coating composition comprises a vinyl oligomer having a blocked carboxyl group and an additional group selected from an epoxy group, a silanol group, a hydrolyzable silyl group and an acid anhydride group. The vinyl oligomer has a number average molecular weight (Mn) of 600 to 2000, a weight average molecular weight (Mw) of 600 to 5000, and a ratio of a weight average molecular weight/a number average molecular weight (Mw/Mn) of 1.0 to 2.5. The blocked carboxyl group and an additional group may be present in the same or different vinyl oligomers.

Abstract: A method for remanufacturing a composite resin having high tensile strength and high rigidity into a remanufactured molded product having the same tensile strength and rigidity which includes the steps of: providing a molded product of a composite resin of thermoplastic resin and liquid crystal polymer having a crystal transition point higher than a minimum moldable temperature of the thermoplastic resin; crushing the composite resin into particles or pieces; heating the particles or pieces at a temperature higher than the transition temperature of the liquid crystal polymer to obtain a molten composite resin by using an injection forming apparatus; extruding the molten composite resin at a temperature higher than the transition temperature of the liquid crystal polymer to obtain a moldable composite material of a sheet or strand form; and forming the moldable composite material into a molded product in a given shape at a temperature lower than the transition temperature of the liquid crystal polymer.

Abstract: The present invention relates to a method for preparing a composite material comprising a matrix resin of a thermal plastic resin and a liquid crystal resin which has a liquid crystal transition temperature higher than the minimum temperature of capable of molding said thermal plastic resin and which is formed into a fiber structure as a reinforcing material.The method is characterized in that the composite composition is subjected to a melt extrusion process at an apparent shear rate of 3.times.10.sup.2 to 10.sup.5 sec.sup.-1 and above the liquid crystal transition temperature. The resulting material in a filament or thin film has fibers of the liquid crystal resin having an aspect of more than 3 in the matrix resin, so that it is provided with an improved tensile strength by further being subjected to a drawing process at a drawing ratio of 11 to 120.

Abstract: A method for producing a thin semiconductor film according to the present invention includes the steps of: placing a group-IV compound or a derivative thereof in a plasma state; decomposing the group-IV compound or the derivative thereof into active species; and depositing the active species on a substrate, wherein energy for generating plasma is intermittently supplied at a supply time interval which is equal to or less than a reciprocal of {(secondary reaction rate constant of a source gas reacting with active species other than long-life active species within the plasma).times.(number of source gas molecules)}.

Abstract: The present invention is to provide a resin composite composition containing a third component for improving the properties of the composite product, based on the knowledge that the composite function between the matrix resin and the liquid crystal is improved by addition of a compatible agent therebetween. Therefore, there is provided a thermoplastic composite composition comprising a thermoplastic matrix resin, a liquid crystal resin which has a liquid crystal transition temperature higher than a minimum temperature of the matrix resin is to be molded and an ability to be melt-extruded into a fiber in the matrix resin, characterized by further comprising a compatible agent for providing an improved bonding power with an interfacing surface between the matrix resin and the liquid crystal resin, within a range possible to prevent the liquid crystal resin into a fiber or fibers having an aspect ratio of less than 3.

Abstract: When a resin article having at least one thickened part is blow-molded, a parison is extruded and suspended between halves of a blow mold the inner surface of which defines the outer shape of the article to be molded. An expander panel is inserted into the space inside the parison, and is moved toward the part of the inner surface of the blow mold corresponding to the thickened part of the article to press thereagainst a part of the parison. Then the blow mold is closed and pressurized gas is blown into the parison.