Abstract: Provided is a vehicular holding device that, in an ON state, holds a vehicle component in a state where displacement of the vehicle component in an axial direction is restrained, and that, in an OFF state, holds the vehicle component in a state where displacement of the vehicle component in the axial direction is possible. The vehicular holding device includes at least one engagement part, a cam mechanism, and an axial direction restraining part. The at least one engagement part is at a position where the engagement part engages with an engaged part in the ON state, and is at a position where the engagement part is separated from the engaged part in the OFF state. The cam mechanism displaces the at least one engagement part from the OFF-state position to the ON-state position. The axial direction restraining part receives axial-direction force acting on the at least one engagement part.

Abstract: A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.

Abstract: A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.

Abstract: Provided is a vehicular holding device that, in an ON state, holds a vehicle component in a state where displacement of the vehicle component in an axial direction is restrained, and that, in an OFF state, holds the vehicle component in a state where displacement of the vehicle component in the axial direction is possible. The vehicular holding device includes at least one engagement part, a cam mechanism, and an axial direction restraining part. The at least one engagement part is at a position where the engagement part engages with an engaged part in the ON state, and is at a position where the engagement part is separated from the engaged part in the OFF state. The cam mechanism displaces the at least one engagement part from the OFF-state position to the ON-state position. The axial direction restraining part receives axial-direction force acting on the at least one engagement part.

Abstract: Provided is a rubber bearing formed from a polychloroprene composition and having higher ozone resistance. The rubber bearing comprises a laminate prepared by alternately laminating a plurality of soft layers having rubber elasticity and a plurality of hard layers having rigidity, and a covering layer covering an outer peripheral part of the laminate. The soft layer comprises a rubber composition containing a polychloroprene, and the covering layer comprises a blend rubber composition containing 30 to 95 parts by mass of a polychloroprene and 70 to 5 parts by mass of an elastomer other than the polychloroprene.

Abstract: Provided are a blended rubber and a blended rubber composition that give a vulcanizate superior in abrasion resistance and ozone resistance, and a vulcanizate prepared by vulcanizing the blended rubber composition. A blended rubber, comprising 30 to 93 mass % of a chloroprene rubber, 5 to 50 mass % of a soft polyvinyl chloride, and 2 to 20 mass % of an acrylonitrile-butadiene rubber. The polyvinyl chloride resin used preferably has a polymerization degree of 300 to 3000 and the acrylonitrile-butadiene rubber preferably has an acrylonitrile content of 18 to 50 mass %.

Abstract: Provided are a blended rubber and a blended rubber composition that give a vulcanizate superior in abrasion resistance and ozone resistance, and a vulcanizate prepared by vulcanizing the blended rubber composition. A blended rubber, comprising 30 to 93 mass % of a chloroprene rubber, 5 to 50 mass % of a soft polyvinyl chloride, and 2 to 20 mass % of an acrylonitrile-butadiene rubber. The polyvinyl chloride resin used preferably has a polymerization degree of 300 to 3000 and the acrylonitrile-butadiene rubber preferably has an acrylonitrile content of 18 to 50 mass %.

Abstract: The present invention relates to tubular forming material made of a composition comprising block copolymers each made of a vinyl aromatic hydrocarbon and a conjugated diene, which has a uniaxial elongation viscosity at 88° C. at a strain rate of 0.5 sec?1 satisfying the following formula between 1.0 sec and 2.8 sec after initiation of elongation, 0.25<(LOG ?2.8?LOG ?1.0)/(2.8?1.0)<0.4 wherein ?1.0 and ?2.8 represent uniaxial elongation viscosities (Pa·sec) at elongation times of 1.0 sec and 2.8 sec, respectively, when measured by a Meissner model elongation viscometer. The composition contains three block copolymers at a specified blend ratio.

Abstract: Provided are a material for an MD shrink film with good shrinking performance and thickness accuracy, and a film formed with the material. The material for the MD shrink film is a resin composition comprising a mixture of a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene and at least one of a vinyl aromatic hydrocarbon polymer, a copolymer of a vinyl aromatic hydrocarbon and (meth)acrylic acid and a copolymer of a vinyl aromatic hydrocarbon and a (meth)acrylate in a mass ratio of from 100/0 to 50/50, and a rubber-modified styrene polymer in an amount of from 0.5 to 3 parts by mass relative to 100 parts by mass of the mixture, wherein a molecular weight distribution (Mw/Mn) of the resin composition exceeds 1.2 and a content of the conjugated diene in monomer units in the resin composition is from 10 to 30% by mass.

Abstract: To provide a tubular forming material excellent in bubble formation stability in the case of producing a heat-shrinkable film. To provide a tubular forming material made of a composition comprising block copolymers each made of a vinyl aromatic hydrocarbon and a conjugated diene, which has uniaxial elongation viscosity at 88° C. at a strain rate of 0.5 sec?1 satisfying the following formula between 1.0 sec and 2.8 sec after initiation of elongation, 0.25<(LOG ?2.8?LOG ?1.0)/(2.8?1.0)<0.4 wherein ?1.0 and ?2.8 represent uniaxial elongation viscosities at elongation times of 1.0 sec and 2.8 sec, respectively, when measured by a Meissner model elongation viscometer.

Abstract: A block copolymer mixture comprising block copolymers (A), (B) and (C) each block comprising vinyl aromatic hydrocarbon and conjugated diene monomer units: wherein block (A) comprises from 75 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 25 mass % of a conjugated diene, and which has a block portion composed mainly of a vinyl aromatic hydrocarbon having a number average molecular weight of from 30,000 to less than 150,000: block (B) comprises from 50 to 80 mass % of a vinyl aromatic hydrocarbon and from 20 to 50 mass % of a conjugated diene, and which has a block portion composed mainly of a vinyl aromatic hydrocarbon having a number average molecular weight of from 20,000 to less than 120,000, and block (C) comprises from 60 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 40 mass % of a conjugated diene, which has at least one random copolymer block portion comprising, as monomer units, from 55 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 45 mass % of a conjugated die

Abstract: A block copolymer mixture comprising block copolymers (A), (B) and (C) each block comprising vinyl aromatic hydrocarbon and conjugated diene monomer units: wherein block (A) comprises from 75 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 25 mass % of a conjugated diene, and which has a block portion composed mainly of a vinyl aromatic hydrocarbon having a number average molecular weight of from 30,000 to less than 150,000: block (B) comprises from 50 to 80 mass % of a vinyl aromatic hydrocarbon and from 20 to 50 mass % of a conjugated diene, and which has a block portion composed mainly of a vinyl aromatic hydrocarbon having a number average molecular weight of from 20,000 to less than 120,000, and block (C) comprises from 60 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 40 mass % of a conjugated diene, which has at least one random copolymer block portion comprising, as monomer units, from 55 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 45 mass % of a conjugated diene.

Abstract: To provide a foamed film or multilayer foamed film excellent in heat insulating properties, a heat shrinkable foamed film or heat shrinkable multilayer foamed film made thereof, a heat shrinkable label, and a container covered therewith. A styrene foamed film characterized by having at least one foamed layer which contains a resin composition comprising from 20 to 100 parts by mass of the following (a) and from 0 to 80 parts by mass of the following (b) and which has a thickness of from 30 to 200 ?m and a specific gravity of from 0.3 to 0.

Abstract: In order to improve adhesion between a plated film which functions as an external connection terminal of a semiconductor device and a surface of a resin protuberance and to improve reliability, a carrier substrate includes a metal substrate which is shaped into a sheet form, to which a semiconductor chip is fixed, and which is removed before the semiconductor device is completed, a recess formed at a position of the metal substrate corresponding to the resin protuberance and having a rugged bottom surface and/or a rugged side surface, and a plated film formed on the inner surface of the recess.

Abstract: In a lead frame which comprises lead portions extended from a frame portion toward an inside like a teeth of a comb and each having a top end portion, a center portion, and a base portion connected to the frame portion, the top end portion and the center portion are connected via a first constriction portion, and the center portion and the base portion are connected via a second constriction portion, and thickness of both side surface portions of the center portion and the top end portion of each lead portion are set thinner than thickness of remaining portions of each lead portion.

Abstract: In a lead frame which comprises lead portions extended from a frame portion toward an inside like a teeth of a comb and each having a top end portion, a center portion, and a base portion connected to the frame portion, the top end portion and the center portion are connected via a first constriction portion, and the center portion and the base portion are connected via a second constriction portion, and thickness of both side surface portions of the center portion and the top end portion of each lead portion are set thinner than thickness of remaining portions of each lead portion.

Abstract: A resin composition characterized by comprising from 5 to 95 wt % of an aromatic vinyl compound/olefin random copolymer (A) which has an aromatic vinyl compound content of from 1 to 99 mol % and has a head-to-tail chain structure composed of two or more aromatic vinyl compound units, and from 95 to 5 wt % of an &agr;-olefin type polymer (B) and/or an aromatic vinyl compound type polymer (C) (provided that it is neither a medical material nor a medical device), which contains substantially no chlorine and is excellent in the impact resistance, moldability, weather resistance and chemical resistance and which is useful for an injection molded product, an extrusion molded product, a film, a sheet, etc. Further, it provides an excellent damping material.

Abstract: In order to improve adhesion between a plated film which functions as an external connection terminal of a semiconductor device and a surface of a resin protuberance and to improve reliability, a carrier substrate includes a metal substrate 12 which is shaped into a sheet form, to which a semiconductor chip is fixed, and which is removed before the semiconductor device is completed, a recess 16 formed at a position of the metal substrate 12 corresponding to the resin protuberance and having a rugged bottom surface 16a and/or a rugged side surface, and a plated film 14 formed on the inner surface of the recess 16.

Abstract: In order to improve adhesion between a plated film which functions as an external connection terminal of a semiconductor device and a surface of a resin protuberance and to improve reliability, a carrier substrate includes a metal substrate which is shaped into a sheet form, to which a semiconductor chip is fixed, and which is removed before the semiconductor device is completed, a recess formed at a position of the metal substrate corresponding to the resin protuberance and having a rugged bottom surface and/or a rugged side surface, and a plated film formed on the inner surface of the recess.

Abstract: A block copolymer (hereinafter referred to as the block copolymer (I)), consisting essentially of a vinyl aromatic hydrocarbon and a conjugated diene and satisfying the following conditions (1) to (5):(1) the weight ratio of vinyl aromatic hydrocarbon units to conjugated diene units is from 60:40 to 90:10,(2) the number average molecular weight of the block copolymer is from 40,000 to 500,000,(3) the ratio of E'30/E'10, where E'30 is the storage modulus at a temperature of 30.degree. C. and E'10 is the storage modulus at a temperature of 10.degree. C., is from 0.75 to 1,(4) the block proportion of a vinyl aromatic hydrocarbon polymer contained in the block copolymer is from 70 to 100%, provided the block proportion=W1/W0.times.