Abstract: A finish laminate for high-frequency circuits, which consists of a metal-covered multilayer structure composed of (I) at least one fundamental laminate in which a glass cloth layer (C) is laminated on at least one side of an ultrahigh molecular-weight polyethylene layer (A) with an adhesive layer (B) interposed between the layers (C) and (A), one fundamental laminate being able to be laminated on another with an adhesive layer (B) interposed therebetween, and (II) a metal foil laminated on at least one outermost layer of the multilayer structure with an adhesive layer interposed therebetween. In one embodiment, the glass cloth layer may be impregnated with a curable thermosetting resin or with this resin and a thermoplastic resin to form a resin-containing glass cloth layer (C.sub.1) or (C.sub.2), thereby dispensing with an adhesive layer (B) when laminating a metal foil on the outermost layer of the multilayer structure.

Abstract: An adhesive resin composition useful for bonding a resin having gas barrier properties and a hydrophobic thermoplastic resin which comprises an ethylene-acrylate or methacrylate copolymer grafted with an ethylenic unsaturated carboxylic acid or its acid anhydride; and 0.02 to 0.6 equivalent to the ethylenic unsaturated carboxylic acid or its acid anhydride of a periodic table group Ia or IIa metal hydroxide, or said metal hydroxide and an ethylene-acrylate or methacrylate copolymer. A laminated material of a resin having gas barrier properties and a hydrophobic thermoplastic resin laminated with the adhesive resin composition and a resin composition comprising the adhesive resin composition, a resin having gas barrier properties and a hydrophobic thermoplastic resin are also disclosed.

Abstract: An adhesive resin composition useful for bonding a resin having gas barrier properties and a hydrophobic thermoplastic resin which comprises an ethylene-acrylate or methacrylate copolymer grafted with an ethylenic unsaturated carboxylic acid or its acid anhydride; and 0.02 to 0.6 equivalent to the ethylenic unsaturated carboxylic acid or its acid anhydride of a periodic table group Ia or IIa metal hydroxide, or said metal hydroxide and an ethylene-acrylate or methacrylate copolymer. A laminated material of a resin having gas barrier properties and a hydrophobic thermoplastic resin laminated with the adhesive resin composition and a resin composition comprising the adhesive resin composition, a resin having gas barrier properties and a hydrophobic thermoplastic resin are also disclosed.

Abstract: The present invention provides an electrical insulating material which comprises an ethylene copolymer prepared by subjecting, to a high-pressure radical polymerization, ethylene or a mixture of ethylene and at most 3 mol % of another monomer in the presence of one- to three-ring aromatic compound having at least two carbon-carbon double bonds, which are different from each other in reactivity in radical polymerization, in one molecule at a polymerization pressure of 500 to 4,000 kg/cm.sup.2 at a polymerization temperature of 50.degree. to 400.degree. C., with the ethylene copolymer containing 0.005 to 1 mol % of a unit derived from the aromatic compound.

Abstract: The present invention provides a method for preparing a hydrocarbon mixture solvent comprising 1 to 15 wt % of alkyl tetralins and 0 to 10 wt % of aromatic hydrocarbons and having a boiling point of 160.degree. to 300.degree. C., the solvent being substantially free from naphthalene and biphenyl; the method being characterized by comprising the steps of subjecting a kerosene fraction having a boiling point of 150.degree. to 300.degree. C. to a nucleus hydrogenation treatment at a temperature of 100.degree. to 300.degree. C. at a pressure of 30 to 100 kg/cm.sup.2 in the presence of a metallic catalyst for nucleus hydrogenation of aromatic nuclei; separating and removing at least a part of n-paraffins in the kerosene therefrom by the use of a molecular sieve made from a synthesized zeolite having pores of 5 .ANG. in diameter in order to obtain a residual oil; and subjecting the latter to a rectification.

Abstract: The present invention provides an ultra-high-molecular-weight polyethylene solution which is produced by the steps of subjecting a kerosene fraction having a boiling point of 160.degree. to 300.degree. C. to a nucleus hydrogenation treatment at a pressure of 30 to 100 kg/cm.sup.2 at a temperature of 100.degree. to 300.degree. C. in the presence of a metallic catalyst for nucleus hydrogenation of aromatic nuclei; separating and removing at least a part of n-paraffins present in the kerosene therefrom by the use of a molecular sieve made up of a synthesized zeolite in order to obtain a residual oil; fractionating the latter by a rectification apparatus to obtain a hydrocarbon mixture fraction which has a boiling point of 180.degree. to 250.degree. C. and which is substantially free from naphthalene and biphenyl; and dissolving, in the hydrocarbon mixture fraction, an ultra-high-molecular-weight polyethylene having an intrinsic viscosity of 8 or more in decalin at 135.degree. C.

Abstract: The present invention is concerned with a novel intermediate 1,1-(3-ethylphenyl)phenylethylene represented by the formula (I) and its manufacturing method, and according to the present invention, Ketoprofen can be synthesized at a low cost and in a high yield.

Abstract: A synthetic resin-coated spring comprising a spring body and a synthetic resin coating layer formed on the spring body. The synthetic resin coating layer contains an olefin polymer modified with an unsaturated carboxylic acid or a derivative thereof. A method for making the coated spring is also described.

Abstract: The present invention provides a method for improving impulse destructive strength of an electrical insulating material which is characterized by employing, as the electrical insulating material, a random copolymer of a styrene series monomer and ethylene or a combination of ethylene and another ethylenic unsaturated monomer, or a composition in which the copolymer is blended with an ethylene series polymer, the copolymer being prepared by introducing, into a reaction system, the styrene series monomer selected from the group of styrene and single-ring substituted styrenes, ethylene or the combination of ethylene and the ethylenic unsaturated monomer and a polymerization initiator, the latter being introduced thereinto separately from at least the styrene series monomer, and subjecting these monomers to a high-pressure radical copolymerization under a polymerization pressure of 500 to 4,000 kg/cm.sup.2 at a polymerization temperature of 50.degree. to 400.degree. C.

Abstract: A novel ethylene copolymer useful for electric insulating materials is obtained by a high-pressure radical polymerization at a pressure of 500 to 4,000 kg/cm.sup.2 at a temperature of 130.degree. to 400.degree. C. and which comprises 95.0 to 99.995 mol % of an ethylene unit, 0.005 to 2 mol % of a comonomer unit represented by the formula (I) ##STR1## wherein Ar is ##STR2## R.sub.1 is an alkylene group having 1 or 2 carbon atoms, each of R.sub.2 and R.sub.3 is a hydrogen atom, or a straight-chain or a side-chain alkyl group having 1 to 4 carbon atoms, and 0 to 3 mol % of an ethylenic unsaturated monomer unit, said ethylene copolymer having a density of 0.910 to 0.940 g/cm.sup.3 and a melt index of 0.05 to 100 g/10 minutes.

Abstract: The present invention provides a method for preparing 3-ethylbenzophenone in a high purity which comprises the steps of alkylating benzene with ethylene in the presence of an alkylating catalyst to obtain an alkylated product composed mainly of unreacted benzene, ethylbenzene, polyethylbenzenes and heavier substances; subjecting the alkylated product to rectification in order to recover therefrom a fraction which has a temperature range of boiling points within the range of 275.degree. to 310.degree. C.

Abstract: The present invention provides a method for preparing 3-ethylbenzophenone in a high purity which comprises the steps of alkylating benzene with ethylene with the aid of an alkylating catalyst to obtain an alkylated product composed mainly of unreacted benzene, ethylbenzene, polyethylbenzenes and heavier by-products; subjecting the alkylated product to distillation in order to recover therefrom a fraction which has a temperature range of boiling points within the range of 275.degree. to 310.degree. C. (in terms of atmospheric pressure); dehydrogenating the recovered fraction at a reaction temperature within the range of 200.degree. to 700.degree. C.

Abstract: The present invention provides a method for preparing solid p-disodium hydroxybenzoate which is characterized by comprising the steps of reacting phenol, carbon tetrachloride in an amount of 0.9 to 1.2 moles per mole of phenol and sodium hydroxide in an amount of 7 to 20 moles per mole of phenol prior to the reaction in an aqueous liquid containing 10 to 40% by weight of p-disodium hydroxybenzoate and/or sodium chloride in the presence of a transition metal powder in an amount of 0.01 to 1.00% by weight based on the weight of a reaction system at a reaction temperature of 50.degree. to 150.degree. C.; cooling the resulting reaction mixture to a level of -20.degree. to +20.degree. C.; and separating said p-disodium hydroxybenzoate therefrom.

Abstract: The present invention provides a flame-retardant olefin polymer composition comprising at least components (a), (b) and (c) in whichin 100 parts by weight of a resin component which is conmposed of(a) 99 to 60% by weight of an ethylene-.alpha.-olefin copolymer having a density of 0.86 to 0.91 g/cm.sup.3, a boiling n-hexane insoluble matter of 10% by weight or more and a maximum peak temperature of 100.degree. C. or more in terms of differential scanning calorie meter and(b) 1 to 40% by weight of an olefin polymer modified with an unsaturated carboxylic acid or its derivative;(c) 20 to 200 parts by weight of an inorganic flame retarder is contained; and an electrical material employing the aforesaid composition.

Abstract: The present invention provides an ethylene copolymer comprising 85.0 to 99.995 mol % of an ethylene unit, 0.005 to 5 mol % of a comonomer unit represented by the formula (I) ##STR1## wherein Ar is ##STR2## R.sub.1 is a hydrogen atom or a methyl group, each of R.sub.2 and R.sub.3 is a hydrogen atom, a chlorine atom or a straight-chain or a side-chain alkyl group having 1 to 4 carbon atoms, and 0 to 10 mol % of an ethylenic unsaturated monomer unit, the ethylene copolymer having a density of 0.860 to 0.970 g/cm.sup.3 and a melt index of 0.05 to 100 g/10 minutes.

Abstract: The present invention provides a packing inside bag for a semisolid viscous material which is constructed by folding one rectangular blank sheet an inner surface of which has release properties, said inside bag being characterized by comprising a rectangular bottom surface 1 formed so as to fit to an outside box, and a front wall 3, a rear wall 3a and pairs of side walls (8, 8a and 9, 9a) which are uprightly raised along the four side edges of said bottom surface 1, said inside box being constructed by folding said blank sheet so that first lugs A, A' extending uprightly along the centers of said side walls may be put on said opposite side walls, and so that second lugs B, B' may be formed which are composed of irregular quadrilaterals extending outward via folds 4, 5 in parallel with said bottom surface from the opposite side edges thereof, said irregular quadrilaterals being formed by putting triangle portions D, D' on extensions C, C' of said first lugs A, A'.

Abstract: This invention relates to a fluorescent mono, di- or polyamide of an aminodicarboxylic acid and a tetrapyrrole containing at least three carboxy groups of the structure: ##STR1## wherein Z is the amino acid residue and X is the tetrapyrrole residue and "n" is an integer from 1 to 4 inclusive.

Abstract: The present invention provides a binder for foundry sand which comprises a hydrolyzate of a butadiene/maleic anhydride copolymer, a neutralized or a partially neutralized substance of the hydrolyzate, a modified substance prepared by modifying the hydrolyzate with a basic organic compound, or a mixture thereof.

Abstract: The present invention relates to compounds having the following formula: ##STR1## or the corresponding di- or tetrahydrotetrapyrroles wherein ##STR2## provided that when R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.7 and R.sub.8 represent two substituents or are divalent and attached to the same carbon, the respective pyrrole ring to which attached is a dihydropyrrole;R is lower alkyl or benzyl;R.sub.6 and R.sub.9, taken together are ##STR3## with the proviso that at least one of R.sub.1 -R.sub.9 includes a free carboxyl group; and salts thereof.These compounds are useful in the photodiagnosis and phototherapy of tumors.

Abstract: An electrical appliance impregnated with a curable impregnant composition comprising as the curable ingredient at least one aromatic olefin and/or diolefin having a plurality of condensed- or noncondensed-type aromatic rings.