Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymonocarboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.

Abstract: In accordance with the present invention, there are provided connection assemblies for burn-in test, wherein the test is carried out by electrically connecting inner terminals of a wiring pattern formed on a base substrate and terminals of a device to be tested to each other. These assemblies are equipped with a contact substrate having points of contact on both the top and bottom surface thereof and force the inner terminals and the terminals to connect electrically through the points of contact, a positioning plate for carrying out positioning of the contact substrate relative to the base substrate and have a positioning hole for locating the device, and a pressure mechanism for pressing the device toward the contact substrate.

Abstract: An epoxy group-containing thermosetting resin composition comprising (A) a copolymer obtained from (a) at least one member selected from an unsaturated carboxylic acid and an unsaturated carboxylic acid anhydride, (b) an epoxy group-containing unsaturated compound, (c) a monoolefin unsaturated compound, and optionally (d) a conjugated diolefin unsaturated compound, and (B) an organic solvent for dissolving the above copolymer. There is also provided another epoxy-group containing thermosetting resin composition which contains the above component (A), (C) a polymerizable compound having at least one ethylenically unsaturated double bond, and (D) a photopolymerization initiator. These epoxy-group containing thermosetting resin compositions are excellent in storage stability.

Abstract: Polymer particles including polysiloxane is disclosed. The polymer particles are prepared by condensing at least one organosilane or organosiloxane compound in the presence of organic polymer particles which are prepared from specific monomers and dispersed in an aqueous medium. The polymer particles possess excellent water resistance, weatherability, water repellency, adhesion, and flexing resistance, and thus are useful as water paints, coating agents, carpet packing material, floor polishing agents, cementing medium, and the like.

Abstract: A method for the inspection of a circuit board, capable of precisely detecting deviation in position between the electrodes to be inspected of a circuit board and the inspection electrodes of a tester, thereby achieving fine alignment between the two, with high reliability. The method includes repeating, in two different axial directions, the measurement of conduction state between the electrodes to be inspected of a circuit board and the inspection electrodes of a tester each time changing, by a small distance, the relative position of the inspection electrodes portion of the tester and the circuit board, to detect a position of high conduction state and two positions of low conduction state which are distant from the position and located so that the position is held between them, in each of the two directions.

Abstract: A negative type radiation-sensitive resin composition which comprises (A) an alkali-soluble resin, (B) a compound which generates an acid upon irradiation, and (C) an aromatic compound having, as functional groups, an --OR group and a --CH.sub.2 OX group, both directly bonded to the aromatic ring in which R represents a substituted methyl group, a substituted ethyl group, a silyl group, an alkoxycarbonyl group or an acyl group and in which X represents a hydrogen atom, an alkyl group having 1-5 carbon atoms or an R group which is as defined above, said aromatic compound being capable of cross-linking the alkali-soluble resin (A) in the presence of an acid, and optionally (D) a specific phenolic compound. The negative type radiation-sensitive resin composition is excellent in developability, pattern-formation, resolution and thermal durability.

Abstract: The present invention provides a pigment dispersed color-filter composition containing a binder polymer such as an alkali-soluble block copolymer; a radiation-sensitive compound; and a pigment. The pigment-dispersed color-filter composition which further contains an organic medium, or an organic medium and a carboxylic acid is also provided.

Abstract: A material for forming a coating film which comprises a compound having at least one glycidyl group in the molecule, a compound having a substituent capable of reacting with the glycidyl group, and a compound having a heterocyclic structure containing secondary nitrogen atom and/or tertiary nitrogen atom. The material is excellent in transparency and flatness and has high solvent resistance, particularly high alkaline resistance and imparts high hardness to a coating to a coating film formed therefrom.

Abstract: A radiation-sensitive resin composition comprising:(a) an epoxy group-containing alkali-soluble resin, or a combination of an alkali-soluble resin which may have an epoxy group and an epoxy compound,(b) 1,2-naphthoquinonediazide sulfonic acid ester, and(c) a solvent.The above radiation-sensitive resin composition is useful as a material for forming a lens.

Abstract: A conjugated diene sulfonation product represented by the formula (I): ##STR1## wherein R.sup.1 to R.sup.6, which may be the same or different represent hydrogen atoms, alkyl groups having 1 to 8 carbon atoms, aryl groups having 6 to 20 carbon atoms or --SO.sub.3 X groups (X represents a hydrogen atom, a metal atom, an ammonium group or a quaternary ammonium group), at least one of said R.sup.1 to R.sup.6 being the --SO.sub.3 X group, a polymer of the conjugated diene sulfonation product or a copolymer of the conjugated diene sulfonation product with a monomer copolymerizable therewith. The sulfonation product, the polymer and the copolymer are useful as a dispersing agent for preparing a solid fuel dispersion, a cement dispersion, a dye and/or pigment dispersion or a metal oxide dispersion or as a water-treating agent, a fiber-treating agent, a plating bath additive and an excavation-muddy water-viscosity-adjusting agent.

Abstract: An aqueous fluorine-containing polymer dispersion having particle diameters of 0.05-3 .mu.m, which is obtainable by emulsion-polymerizing 5-95 parts by weight of a monomer mixture consisting of at least one monomer selected from the group consisting of alkyl acrylates whose alkyl groups have 1-18 carbon atoms and alkyl methacrylates whose alkyl groups have 1-18 carbon atoms and optionally an ethylenically unsaturated compound copolymerizable with the alkyl acrylates and the alkyl methacrylates, in an aqueous medium in the presence of 100 parts by weight of particles of a vinylidene fluoride polymer; and an aqueous dispersion containing a fluorine-containing polymer which consists essentially of 95-30 parts by weight (in terms of solids content) of said aqueous fluorine-containing polymer dispersion and 5-70 parts by weight (in terms of solids content) of an aqueous dispersion of a water-soluble resin and/or a water-dispersible resin.

Abstract: A hydrogenated diene block copolymer having a polystyrene-reduced number-average molecular weight of 50,000-600,000 which is a hydrogenation product of an (A)-(B) block copolymer in which (A) means an alkenyl aromatic compound polymer block and (B) means a conjugated diene homopolymer block wherein the vinyl content of the conjugated diene portion is more than 60%, or an alkenyl aromatic compound-conjugated diene random copolymer block wherein the vinyl content of the conjugated diene portion is 15% or more, an (A)-(B)-(C) block copolymer in which (A) and (B) are as defined above and (C) means an alkenyl aromatic compound-conjugated diene copolymer tapered block wherein the proportion of the alkenyl aromatic compound increases gradually, or an (A)-(B)-(A) block copolymer in which (A) and (B) are as defined above. Said hydrogenated diene block copolymer is useful as a modifier for polar resins, non-polar resins or both of them.

Abstract: A method of removing scale in a cooling water system in which scale is formed comprises adding 0.01 weight % or more based on the total amount of water contained in the cooling water system of a copolymer containing vinyl monomer units having a carboxyl group or salt thereof and vinyl monomer units having a sulfo group or salt thereof in amounts to make the mol ratio of the carboxyl group to the sulfo group in the range of 30:70 to 95:5 and having weight average molecular weight calibrated with polystyrene in the range of 1,000 to 100,000 to the cooling water system while operating the cooling water system and the cleaved or dissolved scale is discharged out of the cooling water system by blowing.

Abstract: An electroconductive elastomer-forming composition comprising (a) 100 parts by weight of a vinyl group-containing polydimethylsiloxane having a standard polystyrene-reduced molecular weight of 10,000-40,000, (b) 5-50 parts by weight of a hydrosilyl group-containing polydimethylsiloxane having a standard polystyrene-reduced molecular weight of 10,000-40,000 and (c) 30-1,000 parts by weight of electroconductive particles. Said composition can form a conductor of small thickness having good conductivity, excellent heat resistance and excellent durability.

Abstract: A resist pattern is formed by(a) forming a thick film of a positive photoresist on a substrate,(b) forming a light-shielding film directly on a surface of the thick film of the positive photoresist,(c) processing the light-shielding film into a pattern,(d) exposing the thick film of the positive photoresist to light, and(e) developing the exposed, thick film of the positive photoresist.According to this method, a thick, fine pattern of a photoresist can be accurately and advantageously formed.

Abstract: A radiation-sensitive composition comprising (A) a polymer having a recurring unit represented by formula (1): ##STR1## wherein R.sup.1 represents a substituted methyl group, a substituted ethyl group, a silyl group, a germyl group or an alkoxycarbonyl group, and R.sup.2 represents --OR.sup.3 or --NR.sup.4 R.sup.5 in which R.sup.3 is a hydrogen atom, a straight-chain alkyl group, a cyclic alkyl group, an aryl group, an aralkyl group, a substituted methyl group, a substituted ethyl group, a silyl group, a germyl group or an alkoxycarbonyl group, and R.sup.4 and R.sup.5 which may be the same or different, are hydrogen atoms, straight-chain alkyl groups, cyclic alkyl groups, aralkyl groups or aryl groups, and (B) a radiation-sensitive acid forming agent.

Abstract: Spherical particles include a core of a polymer and a metal compound covering the polymer core. These particles may be formed by homogeneously dispersing particles of a polymeric compound in an aqueous solution of a hydrolyzable metal salt to form a uniform metal layer around the spherical particles. The spherical particles can also include a core of carbon and a metal compound covering the carbon core or the particles can have a hollow core prepared by heating spherical polymer particles coated with a metal compound to a temperature of 150.degree. C. or higher in the presence of oxygen to completely decompose the polymeric compound. These spherical particles are useful in electronic materials, magnetic materials and the like.

Abstract: A hydrogenated diene block copolymer having a polystyrene-reduced number-average molecular weight of 50,000-600,000 which is a hydrogenation product of an (A)-(B) block copolymer in which (A) means an alkenyl aromatic compound polymer block and (B) means a conjugated diene homopolymer block wherein the vinyl content of the conjugated diene portion is more than 60%, or an alkenyl aromatic compound-conjugated diene random copolymer block wherein the vinyl content of the conjugated diene portion is 15% or more, an (A)-(B)-(C) block copolymer in which (A) and (B) are as defined above and (C) means an alkenyl aromatic compound-conjugated diene copolymer tapered block wherein the proportion of the alkenyl aromatic compound increases gradually, or an (A)-(B)-(A) block copolymer in which (A) and (B) are as defined above and in which hydrogenation product at least 80% of the double bonds of the conjugated diene portion is saturated by the hydrogenation.

Abstract: A process for producing a rubber-modified thermoplastic resin, which comprises polymerizing (B) 30-100% by weight of an aromatic alkenyl compound monomer and/or an alkyl (meth)acrylate monomer and (C) 70-0% by weight of at least one other monomer compound copolymerizable therewith, in the presence of (A) a hydrogenated diene copolymer obtained by hydrogenating a diene copolymer comprising a rndom copolymer of 50% by weight or more of at least one conjugated diene and 50% by weight or less of an alkenyl aromatic compound until at least 70% by weight of the olefinic unsaturation of the diene copolymer is hydrogenated.

Abstract: A thermoplastic resin composition which comprises:(A) 45-90% by weight of a rubber-modified thermoplastic styrene resin in which the grafting degree is 40-150% by weight based on the weight of the rubbery polymer,(B) 9.5-54.5% by weight of an aromatic polyester having an intrinsic viscosity of 1.1-2 dl/g as measured at 25.degree. C. in o-chlorophenol, and(C) 0.1-20% by weight of a graft copolymer obtained by graft-copolymerizing a monomer mixture consisting of 60-80% by weight of an aromatic alkenyl compound and 20-40% by weight of an alkenyl cyanide compound on a copolymer consisting essentially of an olefin unit and an epoxy group-containing unsaturated compound unit, and(D) optionally a silicone lubricant in a proportion of 5-20,000 ppm of the total weight of the (A), (B) and (C) components.