Abstract: Amine represented by the following formula (1), or their acid addition salts or their quaternary ammonium salts. ##STR1## The amines of formula (1) or their pharmaceutically acceptable acid addition salts or quaternary ammonium salts are useful for the treatment and prevention of heart diseases of animals, particularly arrhythima, myocardial infarction, angina pectoris and heart failure and psychoneurological diseases.

Abstract: A curable component composed of (A) an epoxy resin containing at least 90% by weight of a bisphenol glycidyl ether and (B) an aliphatic polyamine is blended with (C) 1-xylyl-1,3-diphenylbutane, bis(.alpha.-methylbenzyl)xylene, and/or 1-xylyl-1-(3-.alpha.-methylbenzylphenyl)ethane, and (D) a coloring pigment and/or an inorganic filler to form a coating composition adapted to be coated to the inner surface of pipes through which city water passes. The composition is cured to the pipe inner surface to form a film which provides a chlorine take-up of up to 1 ppm from city water flowing in contact with the film.

Abstract: Disclosed is a novel anti-ganglioside GD.sub.1a monoclonal antibody (MZ) which is capable of recognizing ganglioside GD.sub.1a but is practically incapable of recognizing GalCer, LacCer, Gb.sub.3, Gb.sub.4, GA.sub.1, GA.sub.2, GM.sub.2, GM.sub.3, GD.sub.1b, GT.sub.1b, GQ.sub.1b, Fuc-GM.sub.1, nLc.sub.4 and sialosyl nLc.sub.4 ; MZ-producing cells; an MZ-containing reagent; and a method for the detection or quantification of GD.sub.1a using the reagent, e.g., to diagnose cancer, systematic lupus erythematosus and diseases resulting from organic injury of the nervous system.

Abstract: Novel dialkoxymethylimidazolidine derivatives of the formula (1) ##STR1## are described. Also, a preparation process of the derivatives and insecticidal compositions comprising the same are set forth.

Abstract: A transparent heat-resistant styrene-base copolymer comprising specific amounts of units derived respectively from (a) a styrene-type monomer, (b) a (meth)acrylonitrile monomer and/or (meth)acrylic ester type monomer and (c) a phenylmaleimide monomer, in which the weight ratio (b)/(c) and the ratio of the weight average molecular weight to the number average molecular weight fall within their respective specific ranges and the amount of the phenylmaleimide-type monomer still remaining in the copolymer is below a certain specific concentration.

Abstract: Thermoplastic elastomer compositions are prepared by feeding a mixture of (a) a peroxide crosslinking type olefin copolymer rubber, (b) a peroxide decomposition type olefin plastics and optionally, (c) a peroxide non-crosslinking type hydrocarbon rubbery substance through a hopper into a cylinder of an extrusion machine, and feeding simultaneously (d) a mineral oil type softener, or both (d) and (e) silicone oil, through an inlet provided on the cylinder separately from the hopper, thereby dynamically heat treating the resulting mixture in the presence of organic peroxide to prepare a partially crosslinked thermoplastic elastomer composition.

Abstract: The present invention relates to rubber-modified styrene copolymer that exhibits excellent rigidity, impact strength, external appearance and fluidity, while retaining rigidity, impact properties and external appearance, and when prepared by copolymerizing a maleimide monomer, has high heat resistance and therefore is suitable for materials for components of electric equipments, electronic equipments, automobiles and business machines.

Abstract: The present invention relates to a mercapto compound, a process for preparing the mercapto compound, a process for preparing a polythiourethane base resin containing the mercapto compound, and a process for preparing plastic lenses containing the resin.

Abstract: A vertical drainage device including a generally plate-like elongated conduit member formed of a synthetic resin and a non-woven fabric attached to the conduit member. The vertical drainage device is adapted to be embedded into soil in a vertical direction coincident with a longitudinal direction of the conduit member and adapted to suck up water existing in the soil. The conduit member is comprised of a plurality of parallel vertical ribs extending in the longitudinal direction of the conduit member and a plurality of transverse ribs extending in a transverse direction of the conduit member for connecting the vertical ribs together. A spacing 1 between the adjacent ones of the vertical ribs is set to a 0.5 mm-5 mm, so as to define a conduit space between the adjacent vertical ribs. Accordingly, a drainage efficiency of the vertical drainage device can be greatly improved.

Abstract: An information recording medium formed by adhering, with an adhesive composition, two disk substrates to each other, at least one of the two disk substrates having a recording layer on at least one surface of a transparent resin substrate thereof and the adhesive composition comprising(1) the following components:(A) an .alpha.-olefin polymer,(B) an ethylene/(meth)acrylate copolymer,(C) a styrene-type polymer, and(D) a tackifierprovided that at least one of the components (A) to (D) is modified with an unsaturated carboxylic acid or a derivative thereof, or(2) the following components:(A) an .alpha.-olefin polymer,(C) a styrene-type polymer,(D) a tackifier, and(E) fine filler particles.

Abstract: A multilayered molding is disclosed, which has a base molding outer layer mainly composed of a partial crosslinking type substance A obtained from polyolefin resin and ethylene-.alpha.-olefin copolymer rubber or a mixture B of polyolefin resin and ethylene-.alpha.-olefin copolymer rubber or both. The outermost layer is in direct contact with and forms a lamination with an inner intermediate layer or a base molding composed of a polyethylene resin, for instance, and is firmly bonded to the outermost layer. A method of manufacturing such multilayered molding is also disclosed, in which a composite sheet of the thermoplastic elastomer with or without the intermediate layer is preliminarily heated, followed by being suction held in close contact with a mold cavity inner surface, thus forming a surface layer. The mold is then clamped, and fluidized and plasticized polyolefin resin is injected to produce the molding. The polyolefin resin may also be injected prior to the clamping.

Abstract: Bulky split fibers having bond strength are produced by preparing a composite synthetic resin film of three layer structure having a polypropylene layer formed of a polypropylene/polyethylene blend and a polyethylene layer on either surface of the polypropylene layer, slitting and stretching the composite film to thereby form stretched tapes, and causing splitting of the stretched tapes for fibrillation. An integral article is prepared from the resultant split fibers by mixing them alone or with plant fibers and then heating at a temperature between the melting points of polyethylene and polypropylene, thereby integrating together the split fibers with each other or with the plant fibers.

Abstract: Ferromagnetic metal particles the surface layer of which comprises laminatedly covered films of a ferrite compound having a spinel structure of at least one metal selected from cobalt, zinc, manganese, aluminum, chromium, nickel and copper and iron and a preparation process thereof.The particles can be used as a high density magnetic recording medium.

Abstract: Novel aromatic amine derivatives of specific structure are useful intermediates for herbicides. The aromatic amine compounds have the structure shown by formula [I]: ##STR1## wherein Ar and A are as defined herein.

Abstract: An indigo compound is prepared from a corresponding indole compound which is unsubstituted at the 2- and 3- positions. The indole compound and an organic hydroperoxide are reacted in the presence of a catalyst which is a metal selected from the group consisting of the metals of Groups 4, 5 and 6 of the periodic table or a compound of the metal. The reaction is conducted while taking out water from a reaction system, said water being that introduced in the reaction system or formed during the reaction, or while controlling the amount of water, which is introduced in the reaction system, at a level not greater than 1 mole per mole of the indole compound.

Abstract: An automatic analytical apparatus in which a series of operations ranging from the sampling into a treating receptacle, pretreatment, analysis and discharge of a fluid sample to the preparation for the next analysis are repeated automatically in order, wherein the time-dependent variation of the composition is traced successively. This permits the presence of the composition variation or the course of the composition variation to be confirmed or the composition variation to be controlled, automatically.

Abstract: This invention provides a superconducting magnetic shield and a magnetic shielding apparatus including the same, thereby accurately measuring an extremely weak magnetic field such as magnetoencephalographic waves by reducing the influence of magnetic field of the earth or magnetic noises.

Abstract: A poly-.alpha.-olefin of novel structure which is an addition polymer of an .alpha.-olefin having 4 carbon atoms or more, wherein (a) by the analysis of the peaks attributable to the side chain methylene groups directly bonded to the main chain in the .sup.13 C-NMR spectrum produced by the measurement in 1,2,4-trichloro-benzene, (i) a novel main peak not attributable to the isotactic structure thereof is positioned on the side of higher magnetic field than is the peak attributable to the isotactic structure, and (ii) the intensity of said main peak is 0.3 or more relative to the sum of the intensities of the total peaks attributable to the side chain methylene groups directly bonded to the main chain, and (b) the molecular weight measured by gel permeation chromatography and calculated as polypropylene is not less than 1,000.

Abstract: Disclosed are novel crystal of the fluoran compound represented by the formula ##STR1## , characterized by a specific X-ray diffraction diagram; preparation process thereof; and recording materials comprising the crystal.

Abstract: A rubber-modified styrene type resin composition excellent in sliding properties which comprises 100 parts by weight of a rubber-modified styrene type resin and 2.2 to 3.2 parts by weight of dimethyl silicone oil having a viscosity ranging from 5,000 to 15,000 centistokes at 25.degree. C., the styrene type resin comprising 3 to 8% by weight of a rubber-like polymer which is present in the form of microgels having an average particle size ranging from 0.6 to 1.2 micron, and having an intrinsic viscosity of 0.53 to 0.65 and the content of methanol-soluble matter in the range of from 0.5 to 1.5% by weight, is herein disclosed. The rubber-modified styrene type resin composition is excellent in its sliding properties and thus does not provide a molded product having poor appearance during molding. The rubber-modified styrene type resin composition is used to form mechanical parts in the fields of household appliances and OA apparatuses.