Abstract: A polymer solid electrolyte obtained by blending (1) a polyether copolymer having a main chain derived form ethylene oxide and an oligooxyethylene side chain, (2) an electrolyte salt compound, and (3) a plasticizer of an aprotic organic solvent or a derivative or metal salt of a polyalkylene glycol having a number-average molecular weight of 200 to 5,000 or a metal salt of the derivative is superior in ionic conductivity and also superior in processability, moldability and mechanical strength to a conventional solid electrolyte. A secondary battery is constructed by using the polymer solid electrolyte in combination with a lithium metal negative electrode and a lithium cobaltate positive electrode.

Abstract: A polyether copolymer having a weight-average molecular weight of 10.sup.4 to 10.sup.7, comprising 5 to 40% by mol of a repeating unit derived from epichlorohydrin, 95 to 60% by mol of a repeating unit derived from ethylene oxide, and 0.001 to 15% by mol of a crosslinkable repeating unit derived from a reactive oxirane compound, gives a provide a crosslinked solid polymer electrolyte which is superior in processability, moldability, mechanical strength, flexibility and heat resistance, and has markedly improved ionic conductivity.

Abstract: The present invention provides a process for obtaining 1,2-propanediol or optically active substances thereof in high yields and at a low cost using readily available starting materials. According to the process of the present invention, 3-halogeno-1,2-propanediol of the general formula [I] is catalytically hydrogenated in an alcoholic solvent having two or more carbon atoms in the presence of a base of an equivalent or less to the starting material to give 1,2-propanediol of the formula [II]. In the formula [I], X stands for a halogen atom.

Abstract: A process for preparing easily and economically a 1,3-dioxolane-4-methanol compound in a racemic form or an optically active form with high purity and in high yield.The process comprises reacting an alkali metal or alkaline earth metal salt of an alcohol or a carboxylic acid with a halogenomethyl-1,3-dioxolane which is prepared by acetalizing a halogeno-1,2-propanediol of a formula (1) wherein X is a halogen atom, in an acid catalyst to conduct esterification or etherification, and then hydrolyzing the ester group and hydrogenolyzing the ether group to prepare a 1,3-dioxolane-4-methanol compound of a formula (5) wherein R.sup.1 and R.sup.2 are hydrogen atom, alkyl having 1 to 4 carbon atoms or phenyl, and R.sup.1 and R.sup.2 may form a cycloalkyl ring having 3 to 6 carbon atoms with the adjacent carbon atoms.

Abstract: A process for preparing a 1,3-dioxolane-3-methanol (5) in a racemic form or an optically active form involves reacting with an alcohol in a base (i) a 3-halogeno-1,2-propanediol (1a) in which X is halogen atom, or (ii) a glycidol effecting a 3-alkoxy-1,2-propanediol, acetalizing the 3-alkoxy-1,2-propanediol in an acid, and hydrogenolyzing the resulting 4-alkoxy-1,3-dioxolane in a reduction catalyst to effect the 1,3-dioxolane-3-methanol (5) in which each of R.sup.1 and R.sup.2 is a hydrogen atom, alkyl having 1 to 4 carbon atoms or phenyl, or R.sup.1 and R.sup.2 together form a cycloalkyl ring having 3 to 6 carbon atoms.

Abstract: A process for preparation of a glycidyl ether which is characrelized in reacting an epoxy compound of the formula ##STR1## wherein X is halogen or sulfonyloxy in the presence of a fluoride salt, with an alcohol. According to the above method, glycigyl ethers or their optically active compounds important as intermediates for synthesis of medicines are easily obtained in good yield and especially the optically active compounds are obtained with highly optical purity.

Abstract: An improved process for producing a catechol derivative (1) useful as a intermediate of pharmaceuticals and agricultural chemicals, being shown by the following reaction scheme. The process is characterized in that formulation in the first step is carried out in the two stages, that is, the reaction is carried out in the presence of a tin catalyst at 60-85.degree. C. to a conversion of 30 to 80% and then is completed at 95-105.degree. C. to produce a salicylaldehyde derivative (3) in a high yield and a high selectivity. Thereby, the objective catechol derivative (1) can be obtained in a high yield and with a high purity. ##STR1## In the above formula, R is alkyl, cycloalkyl, aralkyl, alkoxy, halogen atom, allyl, or aryl, and R.sup.1 is a hydroxy protective group.

Abstract: An object of the present invention is to provide a method of obtaining high-purity sulfur-containing organosilicon compounds having polysulfide structure in a simple manner without treatment at high temperatures or under vacuum.According to the present invention, sulfur-containing organosilicon compounds represented by the formula (R.sup.1 --O).sub.3 --Si--R.sup.2 --S.sub.x --R.sup.2 --Si--(O--R.sup.1).sub.3 is obtained by reacting sulfur, an alkali metal and halogenoalkoxysilane represented by the formula (R.sup.1 --O).sub.3 --Si--R.sup.2 --X (wherein R.sup.1 is a monovalent C.sub.1-5 hydrocarbon, R.sup.2 is a divalent C.sub.1-9 hydrocarbon, X is a halogen, and x is an integral number of 1 to 8).

Abstract: A process for preparation of 3-amino-2-hydroxy-1-propyl ether of the formula ##STR1## wherein R.sup.1 is substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heterocyclic ring, R.sup.2 and R.sup.3 are the same or different hydrogen atom, a substituted or unsubstituted alkyl, or may form a ring together with an adjacent nitrogen atom, which ring may be interrupted with nitrogen atom, oxygen atom or sulfur atom,which is characterized in reacting an epoxy compound of the formula ##STR2## wherein X is halogen, in the presence of a fluoride salt, with an alcohol and then reacting an amine.According to the above method, an intermediates for synthesis of medicines is obtained in good yield and highly optical purity.

Abstract: An industrial method for preparation of a 1,4-benzodioxane derivative (1), which comprises reacting a diol compound (2) with a carbonating agent to prepare a carbonate compound (3) and after removal of the protective group, cyclizing it by heating or by treating with a base or a fluoride salt.

Abstract: A polyether copolymer prepared from 5 to 95% by mol of a monomer of the formula (I), 95 to 5% by mol of a monomer of the formula (II) and 0 to 15% by mol of a monomer of the formula (III) or (IV) as a crosslinking component; the copolymer having a weight-average molecular weight within the range from 10.sup.3 to 10.sup.7 : ##STR1## The copolymer of the present invention provides a polymer solid electrolyte having such a feature that it is superior in ionic conductivity and also superior in processability, moldability, mechanical strength and flexibility to a conventional solid electrolyte.

Abstract: A process for preparation of a glycidyl sulfonate derivative with high purity and in high yield, which is characterized in reacting glycidol which is prepared from treating 3-chloro-1,2-propanediol in an aqueous solvent in the basic condition, without isolating the resulting glycidol with a sulfonyl halide in a two phase solvent consisting of an organic solvent and water in the presence of an inorganic base and a tertiary amine or a pyridine derivative.

Abstract: A improved process for preparing 4-hydroxy-2-pyrrolidone of the formula ##STR1## which is characterized in reacting a 4-halogeno-3-hydroxybutyrate and an alkali metal or alkaline earth metal azide, to produce a 4-azido-3-hydroxybutyrate and hydrogenating an azide group of the ester compound and then cyclizing a hydrogenated compound. 4-Hydroxy-2-pyrrolidone is useful for an intermediate of medicines and agricultural chemicals.

Abstract: A polymer solid electrolyte which is superior to a conventional solid electrolyte in ion conductivity and also superior in processing characteristics, molding characteristics, mechanical strength and flexibility. The polymer solid electrolyte produced by formulating a soluble electrolyte salt compound to a polyether copolymer having an oligooxyethylene side chain and an electrolyte salt compound which is soluble in the polyether copolymer, the polyether polymer being a solid random copolymer having a main chain structure consisting of 5 to 30 molar % of a structural unit of the following formula (1) and 95 to 70 molar % of a structural unit of the following formula (2), and the polyether polymer having a polymerization degree n of an oxyethylene unit of the side chain part of the formula (1) of 1 to 12, a number-average molecular weight of 100,000 to 2,000,000, a glass transition point measured by a differential scanning calorimeter (DSC) of not more than -60.degree. C.

Abstract: A novel process for preparing a 1,4 benzodioxane derivative shown by the formula (1) which is a useful intermediate of circulatory drugs and drugs for psychoneurosis, characterized in sulfonating a phenoxypropanediol with a sulfonyl halide, eliminating the protective group, and then cyclizing the sulfonated compound by treating with a base followed by, if necessary, further sulfonation. ##STR1## In the above formula, R.sup.1 is H, RSO.sub.2, R is alkyl, phenyl which may be substituted with alkyl, R.sup.2, R.sup.3, R.sup.4 are H, halogen, OH, nitro, cyano, formyl, COOH, alkoxycarbonyloxy, alkyl, alkoxy, haloalkyl, N,N-dialkylamino, alkylcarbonyl, alkoxycarbonyl, phenyl which may be substituted by alkyl, etc.

Abstract: Disclosed is a laminate comprising a thermosetting resin-impregnated prepreg layer (A) constituting a surface layer, a rubber or thermoplastic resin layer (B) having a flexibility and a hot melt resin adhesive layer (C), the thermosetting resin-impregnated prepreg layer and rubber or thermoplastic resin layer being heat bonded through the hot melt resin adhesive layer. The layer (A) is a prepreg impregnated with a thermosetting resin selected from a diallyl phthalate resin, an unsaturated polyester, a phenol resin, an aminoalkyd resin, an epoxy resin, an acrylurethane resin and a melamine resin. The rubber or resin of the layer (B) is a rubber or a thermoplastic resin selected from chlorinated polyethylene, polybutene, ethylene-vinyl acetate copolymer, an ethylene-propylene-diene copolymer, a chloroprene polymer, chlorosulfonated polyethylene, a styrene-butadiene copolymer and polyvinyl chloride. In addition, the hot melt resin of the layer (C) is a hot melt resin having a melting point of 60.degree. to 165.

Abstract: A novel method for preparing optically active chlorohydrin compound and optically active 1,2-diol compound and/or optically active 3-hydroxy-.gamma.-butyrolactone which are useful as intermediates for preparing medicaments, agricultural chemicals, physiologically active substances and ferroelectric liquid crystals, which comprises treating a racemic chlorohydrin compound having the formula: ##STR1## wherein R.sup.1 is H or lower alkyl group; and R.sup.2 is substituted or unsubstituted lower alkyl group when R.sup.1 is H; or R.sup.2 is H when R.sup.1 is lower alkyl group with a microorganism, whereby selectively degrading only one of optical isomers thereof, and recovering the remaining an other optically active chlorohydrin and isolating optically active 1,2-diol compound and/or optically active 3-hydroxy-.gamma.-butyrolactone converted by the reaction.

Abstract: A resin composition is provided which comprises a mixture of A) 100 parts by weight of an ABS graft copolymer comprising as component monomers an acrylonitrile compound and a vinyl aromatic compound in a weight ratio of 10:90 to 50:50, and B) 5 to 30 parts by weight of an ethylene oxide copolymer comprising ethylene oxide as a first monomer and a second monomer and containing at least 50 wt. % of ethylene oxide, the ethylene oxide copolymer having a refractive index (n.sub.D.sup.20) of at least 1.50, wherein said second monomer has a refractive index of at least 1.54 and is 2-phenylphenyl glycidyl ether or 1-naphthyl glycidyl ether, and wherein the molecular weight of the ethylene oxide copolymer is 1 to 5 in terms of a reduced viscosity as measured at 80.degree. C. using 0.1 g/dl monochlorobenzene solution thereof.

Abstract: A vulcanizable composition which contains(a) 100 parts by weight of an epichlorohydrin polymer;(b) 0.1 to 10 parts by weight of a 2,3-dimercaptopyrazine derivative or a 2,3-dimercaptoquinoxaline derivative; and(c) 1 to 10 parts by weight of a hydrotalcite compound, has the high vulcanization rate and the excellent long time storage stability.

Abstract: The present invention provides a cyclic sulfide compound represented by a general formula (I) ##STR1## (where R.sup.1 represents --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --O--CH.sub.2 --, --CH.sub.2 --O--, or --CH.sub.2 --S--). According to this invention, a novel cyclic sulfide compound which gives high refractive index and high Abbe number can be obtained. The polymerizable compositions for manufacturing optical products with this compound as their main component can be readily molded into plastic lenses which give superhigh refractive indices and high Abbe numbers or those which give high refractive indices and high Abbe number with low sp.grs. in addition thereto. The castings obtained from said polymerizable compositions are useful as plastic lenses for glasses, manifesting optical uniformity and being excellent in processability, transparency, and thermal, impact and light resistance.