Abstract: High-purity 1,4,5,8-tetraanilidoanthraquinones which are substituted at the p-position of at least one of four anilido benzene rings by a halogen atom are good near infrared rays absorbing filters and at prepared from high purity 1,4,5,8-tetrachloroanthraquinone by reaction with a correspondingly substituted aniline or mixture of anilines in the presence of a salt of an aliphatic carboxylic acid,. a benzyl alcohol derivative and copper ions as reaction catalyst.

Abstract: This invention relates to a package construction of a semiconductor device, and provides a semiconductor device in which a vapor-impermeable moistureproof plate is embedded in a bottom surface of a hollow package or an inner surface wallthicknesswise therefrom to provide an excellent moisture-proofness in terms of the package construction.

Abstract: A radiation-resistant polypropylene resin composition is disclosed which comprises a polypropylene having a substantially syndiotactic structure, and if desired, a phosphorus-containing anti-oxidant, an amine-containing anti-oxidant and/or a nucleating agent. Molded articles obtained from this resin composition can be utilized as containers for foods and medicines, and their physical properties scarcely deteriorate during sterilization by radiation.

Abstract: A breathable, hydrolyzable, porous film which is obtained by the process comprising adding from 40 to 250 parts by weight of a finely-powdered filler having an average particle size of from 0.3 to 4 .mu.m to 100 parts by weight of a polylactic acid-based resin composition comprising from 80 to 100% by weight of polylactic acid or a lactic acid-hydroxycarboxylic acid copolymer and from 0 to 20% by weight of a plasticizer, melting and film-forming the resultant mixture, and successively stretching the thus-obtained film 1.1 times or more at least in the direction of the axis; and which is consequently useful as a material for leakproof films of sanitary materials such as a paper diaper and packaging materials, and does not accumulate as wastes because of hydrolyzability in the natural environment in the case of being abandoned after use.

Abstract: A magnetoencephalograph comprising an oxide superconductor magnetic shielded vessel and a cryostat for cooling the magnetic shielded vessel, a multichannel SQUID and a cryostat for cooling the SQUID inserted together in the magnetic shielded vessel from one end of the magnetic shielded vessel, a magnetic-field detection unit situated in the vessel for detecting magnetic fields, and a coupling portion for coupling the SQUID and the magnetic-field detection unit with respect to the signals, and the SQUID and the magnetic-field detection unit being detachable. The magnetoencephalograph makes possible the detection of the very weak magnetic fields from the human brain and therewith reduction of the diameter of the opening of the magnetic shield vessel for inserting the SQUID. The reduction of the diameter of the SQUID opening in turn makes it possible to reduce the length of the magnetic shielded vessel, thereby preserving a high shielding effect of the magnetic shield vessel because of the L/D relationship.

Abstract: In accordance with the present invention, there are provided an olefin polymerization catalyst formed from:[A] a compound of a transition metal belonging to Group IV B of the periodic table,[B] an aluminoxane, and[C] water,an olefin polymerization catalyst formed from [D] an organoaluminum compound in addition to the above-mentioned [A], [B] and [D] components, and processes for the polymerization of olefins using the above-mentioned olefin polymerization catalysts, respectively.

Abstract: The improved heat-resistant overwrap film is formed from a resin composition that comprises (A) 98-70 parts by weight of a 4-methyl-1-pentene based polymer, (B) 1-15 parts by weight of an isobutylene based polymer having a kinematic viscosity of 2-5000 cSt at 100.degree. C., and (C) 1-15 parts by weight of a butene-1 based solid polymer, with the sum of (A)+(B)+(C) being 100 parts by weight. The film is excellent in heat resistance, flexibility, tackiness and transparency.

Abstract: A photo-curable resin composition containing a polycarbonate having a number average molecular weight of between 200 and 10,000 and containing at least two (meth)acrylate groups in the molecule, or a diglycidyl phthalate (meth)acrylate, an organic polymer fine powder having an average particle diameter of between 1 .mu.m and 50 .mu.m and a photo-radical polymerization initiator; and a coating liquid to be applied to a resin pattern. This resin composition is useful for preparing a clasp pattern exhibiting a theoretical form for retention, durability, etc., i.e., a cast clasp basic pattern, for producing, by a lost wax method, a cast clasp which is a metal component for holding a partial denture, retaining it and supporting it.

Abstract: Therapeutic agents for degressive diseases in the central nervous system, which contain amide derivatives of dihydrocaffeic acid of the general formula (I) ##STR1## wherein, R.sub.1 and R.sub.2 and A are defined in the specification; the compounds exert a nerve growth factor inducing action and thus are effective for the prevention of the progression of degenerative diseases in the central nervous system and the therapeutic treatment thereof.

Abstract: Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents.(+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl]isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.

Abstract: Herein disclosed are an .alpha.-(aminocyclohexyl)alkylamine represented by the following general formula (II): ##STR1## wherein R represents hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, provided that the amino group bonded to the cyclohexyl group may be in either of the 2-, 3- and 4-positions and a method for preparing it; an .alpha.-(isocyanatocyclohexyl)alkylisocyanate of Formula (II) wherein the amino groups are replaced with isocyanato groups and a method for preparing it; polyisocyanato-isocyanurate represented by the following general formula (IV): ##STR2## wherein R.sub.1, R.sub.2 and R.sub.

Abstract: A surface acoustic wave convolver includes first and second interdigital electrodes for exciting surface acoustic waves and an output electrode for detecting the surface acoustic waves to extract a convolution output as an electrical signal, the first and second interdigital electrodes and the output electrode being formed on a piezoelectric or electrostrictive substrate.

Abstract: A random copolymer of propylene with from 1 to 10 mol % of a C.sub.4 to C.sub.20 .alpha.-olefin and an intrinsic viscosity of 0.5 to 6 dl/g is also characterized by a melting point (Tm) measured by a differential scanning calorimeter falling within the range of 90<Tm<155-3.5(100-P) (wherein P is the propylene content (mol %) present in the copolymer), a molecular weight distribution (Mw/Mn) of less than 3.5, and a boiling trichloroethylene-insoluble content of less than 5% by weight. Terpolymers of propylene-ethylene-C.sub.4 -C.sub.20 .alpha.-olefin wherein Tm falls within the range of 70<Tm<155 -5.5(100-P) are also described. The propylene random copolymer is prepared by polymerizing propylene, .alpha.-olefin, and optionally, ethylene in the presence of a catalyst system which includes an hafnium compound having a multidentate ligand and two or more cycloalkadienyl groups linked together via an alkylene linkage, and an organoaluminum oxy-compound.

Abstract: The present invention relates to a process for preparing trehalulose and isomaltulose wherein at least the trehalulose-forming enzyme system of a trehalulose-forming microorganism is contacted with a sucrose solution to convert it into trehalulose and isomaltulose in the weight ratio of at least 4:1.

Abstract: A highly crystalline semi-rigid random 1-butene/ethylene copolymer consisting of 1-butene and ethylene, said copolymer having the following characteristics (A) to (K);(A) it consists of 99 to 90 mole % of the 1-butene component and 1 to 10 mole % of the ethylene component,(B) it has an intrinsic viscosity (.eta.), measured in decalin at 130.degree. C., of from 0.5 to 6 dl/g,(C) it has a DSC melding point (Tm) measured by a differential scanning calorimeter, of from 100.degree. to 120.degree. C.,(D) it has a crystallinity, measured by X-ray diffractometry, of from 20 to 58%,(E) the amount (W.sub.1 in % by weight) of that portion of it which is soluble in boiling methyl acetate is not more than 2%,(F) the amount (W.sub.2 in % by weight) of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10.degree. C. is less than 5 .times. (.eta.).sup.-1.2,(G) it has a yield strength of 30 to 180 kg/cm.sup.2,(H) it has a tensile strength at break of 200 to 800 kg/cm.sup.

Abstract: An air gun apparatus which permits stable, fine spinning and is capable of discharging fine filaments at a certain degree of dispersion and affording a non-woven fabric of uniform shape is provided. The air gun includes an air nozzle and an accelerator tube. The air nozzle has a filament inlet and outlet. The filaments are discharged from the filament outlet while being pulled by compressed air. The accelerator tube is formed at a specific diameter to length ratio and is connected to the air nozzle in the filament discharging direction. The non-woven fabric producing apparatus is provided with a guide tube and a separator nozzle, with an air flow rate regulator being disposed between the guide tube and the separator nozzle. The air flow rate regulator has an exhaust port for exhausting to the exterior a portion of the compressed air which is used for carrying the filaments.

Abstract: Methanol is decomposed in the presence of a catalyst containing chromium oxide and zinc oxide as main components and containing a compound of at least one element selected from the group consisting of alkali metals, alkali earth metals and lanthanides, while contents of iron and nickel in the catalyst are each maintained at 0.5% by weight or less. This process is characterized by (1) being excellent in stability at high temperatures, (2) preventing the catalyst from deteriorating, (3) inhibiting the production of by-products, and (4) obtaining a gas in which the CO/H.sub.2 ratio is high.

Abstract: There is here disclosed a method for preparing an alkoxyphthalocyanine represented by the formula (1): ##STR1## wherein each of Rs is independently a secondary alkyl group having 3 to 20 carbon atoms, Met is a divalent metal atom or an oxy metal, and the substitution positions of -ORs are the 1- or 4-position, the 5- or 8-position, the 9- or 12 position, and the 13- or 16-position, which comprises the steps of heating a mixture of 3-alkoxyphthalonitrile and an organic base in an alcohol to 90.degree.-120.degree. C., adding a metal derivative at the same temperature, and then carrying out reaction, or alternatively the step of reacting a mixture of a 1,3-diimino-4-alkoxyisoindoline and a metal derivative in the presence or absence of an organic base in an aliphatic alcohol having 6 or more carbon atoms. In addition, the ratio of isomers of the alkoxyphthalocyanine can be controlled by regulating the addition time of the organic base.

Abstract: An elastomer is molded by a reaction injection molding of polyurethane resins, polyurea resins, polyurethane/urea resins and polyurea/amide resins in the presence of an internal release agent which is a polyester condensate of a saturated or unsaturated fatty acid having a hydroxy group produced by transesterification or a molecular end-aminated or iminated polyester condensate. The elastomer has a good releasing property and a good coating property.

Abstract: An .alpha.-olefin-alkenylsilane copolymer having steric regularity in which the side chains in the .alpha.-olefin unit substantially have the steric regularity, the content of alkenylsilane units is from 0.01 to 50% by weight, and the intrinsic viscosity measured in a tetralin solution at 135.degree. C. is 0.01 or higher. A method for preparing the above copolymer comprises the step of copolymerizing an .alpha.-olefin having 3 to 25 carbon atoms with an alkenylsilane in the presence of a catalyst comprising an aluminoxane and a transition metal compound containing a cyclopentadiene group or its derivative as a ligand.