Abstract: A method for lowering the dynamic-to-static modulus ratio of vulcanized rubber, the method comprising a first step of kneading a rubber component, a filler and a compound represented by formula (I) or a salt thereof, a second step of kneading the kneaded mixture obtained in the first step, a sulfur component and a vulcanization accelerator, and a third step of thermally treating the kneaded mixture obtained in the second step, in formula (I), n represents an integer of 0 to 10. The compound represented by formula (I) or a salt thereof is preferably S-(3-aminopropyl)thiosulfuric acid or a salt thereof.

Abstract: A process for producing a vulcanized rubber composition that includes S-(3-aminopropyl)thiosulfuric acid, a rubber component, a filler, a sulfur component, and a vulcanization accelerator, the process comprising the following Steps (A), (B) and (C); (A): a step of kneading S-(3-aminopropyl)thiosulfuric acid having a median diameter (50% D) of 10 ?m to 100 ?m, a rubber component and a filler, (B): a step of kneading the kneaded mixture obtained in Step (A), a sulfur component and a vulcanization accelerator, and (C): a step of subjecting the kneaded mixture obtained in Step (B) to thermal treatment.

Abstract: To provide a liquid crystal polyester composition which is suited for use as a material for forming a liquid crystal polyester film having excellent thermal conductivity. Also, an excellent electronic circuit board is provided by using an insulating film obtained from the liquid crystal polyester composition. The liquid crystal polyester composition of the present invention is composed of a liquid crystal polyester, a solvent and a thermally conductive filler. The thermally conductive filler is contained in the amount of 50 to 90 volume % based on the total amount of the liquid crystal polyester and the thermally conductive filler, and the thermally conductive filler contains 0 to 20 volume % of a first thermally conductive filler having a volume average particle diameter of 0.1 ?m or more and less than 1.0 ?m, 5 to 40 volume % of a second thermally conductive filler having a volume average particle diameter of 1.0 ?m or more and less than 5.

Abstract: Improved moisture absorption solder heat resistance is obtained in producing a metallic foil laminate body having a metal foil attached on both sides of a laminated base material including a plurality of insulating base materials. A laminated base material (2) is first prepared by pressurizing and integrating a plurality of insulating base materials (2a) in a prepressing step. Then, the laminated base material (2) is heat-treated. Thereafter, this laminated base material (2) is sandwiched between a pair of metal foils (3A) and (3B), and heated and pressurized to be integrated into a metallic foil laminate body. The prepressing step makes it possible to prevent an interface between the insulating base materials (2a) from being generated. As a result, swelling is not generated on the surfaces of the insulating base materials (2a).

Abstract: A resin-impregnated sheet obtained by impregnating a fiber sheet with a thermoplastic resin, wherein a weight loss rate upon a heat treatment at 225° C. for 30 minutes is from 6.8 to 10% by mass; and a method for producing a resin-impregnated sheet laminate with a metal foil, which comprises preliminarily pressing a plurality of the resin-impregnated sheets while being laid one upon another, subjecting the obtained resin-impregnated sheet laminate to a heat treatment, and arranging a metal foil on both sides of the sheet laminate, followed by regular pressing.

Abstract: To provide a liquid crystal polyester composition which is suited for use as a material for forming a liquid crystal polyester film having excellent thermal conductivity. Also, an excellent electronic circuit board is provided by using an insulating film obtained from the liquid crystal polyester composition. The liquid crystal polyester composition of the present invention is composed of a liquid crystal polyester, a solvent and a thermally conductive filler. The thermally conductive filler is contained in the amount of 50 to 90 volume % based on the total amount of the liquid crystal polyester and the thermally conductive filler, and the thermally conductive filler contains 0 to 20 volume % of a first thermally conductive filler having a volume average particle diameter of 0.1 ?m or more and less than 1.0 ?m, 5 to 40 volume % of a second thermally conductive filler having a volume average particle diameter of 1.0 ?m or more and less than 5.

Abstract: An object of the present invention is to provide a light diffuser plate (1) which can illuminate the front side more brightly when incorporated in a surface light source (3) constituting a transmissive image display (2). The light diffuser plate of the present invention comprises a transparent resin and a light diffuser dispersed in the transparent resin, wherein the transparent resin is a transparent resin which has a light transmittance [T600] at a wavelength of 600 nm of 85% or more measured with respect to a thickness of a 2 mm thick plate-shaped specimen, and a ratio [T365/T600] of a light transmittance [T365] at a wavelength of 365 nm to the light transmittance [T600] is 0.90 to 0.99. The transparent resin is polystyrene or the like, an average particle diameter of the light diffuser is from 0.5 to 5 ?m, an absolute value [|?n|] of a difference in a refractive index between the light diffuser and the transparent resin is 0.05 or more, an amount of the light diffuser is from 0.

Abstract: An object of the present invention is to provide a light diffuser plate (1) which can illuminate the front side more brightly when incorporated in a surface light source (3) constituting a transmissive image display (2). The light diffuser plate of the present invention comprises a transparent resin and a light diffuser dispersed in the transparent resin, wherein the transparent resin is a transparent resin which has a light transmittance [T600] at a wavelength of 600 nm of 85% or more measured with respect to a thickness of a 2 mm thick plate-shaped specimen, and a ratio [T365/T600] of a light transmittance [T365] at a wavelength of 365 nm to the light transmittance [T600] is 0.90 to 0.99. The transparent resin is polystyrene or the like, an average particle diameter of the light diffuser is from 0.5 to 5 ?m, an absolute value [|?n|] of a difference in a refractive index between the light diffuser and the transparent resin is 0.05 or more, an amount of the light diffuser is from 0.

Abstract: The present invention provides a light diffuser plate, a surface emission light source apparatus and a liquid crystal display apparatus which are capable of preventing the generation of annoying noise in an area of contact between the light diffuser plate and a lamp box. The present invention relates to a surface emission light source apparatus comprising a plurality of light sources disposed at a distance from each other in a lamp box, that is made of a resin and has an open front side, and a light diffuser plate that is made of a resin and is disposed on the front side of the frame of the lamp box so as to close the opening of the lamp box, wherein at least a part of the back surface of the light diffuser plate that makes contact with the front surface of the frame is formed as a matted surface, the matted surface has an arithmetic mean surface roughness Ra in a range from 0.8 to 15 ?m and a mean surface irregularity interval Rsm in a range from 100 to 300 ?m.

Abstract: There is provided a process for the production of an embossed sheet material for the purpose of improving a embossing accuracy. The process comprises the steps of: providing a continuous resin sheet material by extruding a molten resin through a die, and imprinting a surface profile of an embossing member by nipping the continuous resin sheet material between a press roll and the embossing member wherein the embossing member is made of an organic material.

Abstract: The present invention provides an antistatic agent composition which attains sufficient antistatic properties and also has antistatic properties having excellent durability against high temperature, high humidity and ultraviolet irradiation. The antistatic agent composition of the present invention comprises a water-soluble resin having a carboxyl group, a crosslinking agent having a functional group capable of reacting with a carboxyl group, and an ammonium salt having a specific chemical structure. One or more crosslinking agents selected from the group consisting of a carbodiimide resin, an epoxy resin, an isocyanate resin and a zirconium salt are preferably used as the crosslinking agent. At least one kind of a water-soluble resin selected from the group consisting of polyacrylic acid and an acrylic acid-methacrylic acid copolymer is preferably used as the water-soluble resin.

Abstract: A multilayered light diffuser plate having a light diffusing layer made of a transparent resin selected from the group consisting of styrene polymers and styrene monomer-methyl methacrylate copolymers containing a light diffusing agent dispersed therein, and a UV absorbing layer made of a styrene monomer-methyl methacrylate copolymer containing 0.

Abstract: The present invention provides an adhesive film obtainable by irradiating electron beam on a molded article obtainable by molding a resin composition comprising components (A) and (B), the storage method of the film and a laminate comprising the adhesive film and an adherent. Component (A) is an epoxy group-containing copolymer obtainable by polymerizing, wherein (a1) is ethylene and/or propylene, and (a2)is a monomer represented by formula (1): (wherein R represents a hydrocarbon group of a carbon number of 2 to 18 having a double bond, wherein at least one of hydrogen atoms of the hydrocarbon group may be substituted with a halogen atom, a hydroxyl group or a carboxyl group, and X represents a single bond or a carbonyl group). Component (B) is a copolymer obtainable by polymerizing (b1) and (b2), wherein (b1) is ethylene and/or propylene, and (b2) is ?,?-unsaturated carboxylic acid anhydride.

Abstract: The present invention provides a thermosetting resin composition containing the following (A) component and (B) component, an adhesive containing the thermosetting resin composition and an organic solvent and/or water, and an adhesive film containing the thermosetting resin composition.

Abstract: An adhesive film is produced by irradiating electron beam to a film made of an electron beam-curable resin, the adhesive film having a flowability with little dispersion thereof at melt-adhesion. The production process comprises two or more steps of irradiating electron beam to a film made of an electron beam-curable resin, wherein a standard deviation and a dispersion degree of the accumulated irradiation doses irradiated on partitions of the adhesive film after the final irradiation step, are respectively smaller than those after the last irradiation step before the final irradiation step, wherein the dispersion degree is a value obtained by dividing the difference in the accumulated irradiation dose between its maximum and minimum doses by its average does.

Abstract: An object of the present invention is to provide an adhesive film excellent in processibility, thermosetting property, adherability and solder heat resistance.

Abstract: A polybutadiene composition comprising a polybutadiene type polymer and a compound represented by the following formula (I): wherein Ar1 and Ar2 each independently represent an aromatic ring, X and Y each independently represent an alkylene group having one or two carbon atoms, an oxygen atom or a carbonyl group, is provided; and thermal degradation of the polybutadiene type polymer can be prevented even in an air-free environment.

Abstract: There are disclosed a polybutadiene composition comprising: a polybutadiene type polymer, and at least one compound selected from a compound of formula (I-1): or a compound of formula (I-2): wherein R11 to R28 are the same or different and independently represent a hydrogen atom, an alkyl group, or the like; or a compound of formula (II): wherein R1 to R10 independently represent a hydrogen atom, an alkyl group, or the like; or a styrene-butadiene copolymer, and a benzoin compound; and an article molded therefrom, and processes for producing the composition and the molded article.

Abstract: A resin composition for insulation material adhesive having excellent solder heat resistance comprising components (A) a copolymer comprising a vinyl group-containing monomer unit [a] and an epoxy group-containing monomer unit [b], and (B) a polymerization initiator;

Abstract: There are disclosed a polybutadiene composition comprising: