Abstract: An oxidation catalyst composition produced by comprising mixing at least one crystalline composite oxide, as the first component, selected from the group consisting of (i) a crystalline composite oxide containing vanadium and phosphorus and showing the characteristic X-ray diffraction peaks as identified in the following Table A and (ii) a crystalline composite oxide containing vanadium and phosphorus and showing the characteristic X-ray diffraction peaks as identified in the following Table B, an aqueous solution, as the second component, containing vanadium and phosphorus, and silica sol, as the third component, to form an aqueous slurry, spray-drying the slurry, and calcining the solid particles thereby obtained:TABLE A ______________________________________ X-ray diffraction peaks (Anticathode: Cu--K.sub..alpha.) 2.theta. (.+-.0.2.degree.) ______________________________________ 15.7.degree. 19.6.degree. 24.2.degree. 27.1.degree. 28.8.degree. 30.4.degree.

Abstract: A polyolefin is producing by polymerizing ethylene or copolymerizing ethylene and the other .alpha.-olefin at 50.degree. to 100.degree. C. in a hydrocarbon solvent in the presence of a catalyst system of an organoaluminum compound and a transition metal compound component which is a solid catalytic component containing a magnesium compound and a titanium compound under the condition (a) two step polymerizations of a first polymerization step and a second polymerization step in the presence of a reaction mixture obtained by said first polymerization step; (b) a polymerization in the presence of hydrogen at a molar ratio of H.sub.2 to C.sub.2 H.sub.4 (vapor phase) of 0.01-0.8 to produce a polymer A having a viscosity average molecular weight of 2.times.10.sup.5 -7.times.10.sup.5 at a ratio of 30 to 70 wt. % based on the total polymer in one of said first or second polymerization step and a polymerization in the presence of hydrogen at a molar ratio of H.sub.2 to C.sub.2 H.sub.4 (vapor phase) of 1.

Abstract: A thiazolidine compound represented by the following general formula I or its acid addition salt ##STR1## where X is --CH.dbd. or --N.dbd., Y is ##STR2## (where R is a hydrogen atom, a methyl group or an ethyl group) or --CH.sub.2 CH.sub.2 --, Ar is a phenyl group which may be substituted by halogen, lower alkyl, lower alkoxy, phenyl or trifluoromethyl, a thienyl group or a naphthyl group, R.sup.1 is a hydrogen atom, a straight chain or branched chain alkyl group having from 1 to 10 carbon atoms or a phenyl group which may be substituted, R.sup.2 is a hydrogen atom, a straight chain or branched chain alkyl group having from 1 to 10 carbon atoms, a phenyl group which may be substituted, a lower alkoxycarbonyl group, a lower alkylcarbamoyl group or a lower alkenylcarbamoyl group, and R.sup.3 is a hydrogen atom, a lower alkyl group, a lower acyl group, a lower alkylcarbamoyl group, a lower alkylthiocarbamoyl group or a phenylcarbamoyl group. The compound is useful as fungicide.

Abstract: A porous refractory inorganic oxide product is produced by shaping a mixture of carbon black and a refractory inorganic oxide and/or a precursor of refractory inorganic oxide; drying a product; firing it in an oxygen-containing gas flow while burning said carbon black.

Abstract: A 2,2-dihalo-6-halo-6-(1-haloisobutyl)cyclohexanone represented by the general formula ##STR1## where each of X.sup.1, X.sup.2, X.sup.3 and X.sup.4 is a halogen atom.

Abstract: Pleochroic azo dyes represented by the formula (I): ##STR1## wherein X represents group --OCOR.sup.1 or --COOR.sup.1 (wherein R.sup.1 represents an alkyl group, an alkoxyalkyl group, an alkoxyphenyl group, an alkylcyclohexyl group, an alkoxyalkylcyclohexyl group, a cycloalkylcyclohexyl group, an alkoxycyclohexyl group, or a phenyl group substituted by a substituent selected from among an alkyl group containing 3 to 18 carbon atoms, an alkoxyalkyl group, a cycloalkyl group, an aryl group, a cyano group, a halogen atom, an acyloxy group, a carboxylic acid ester group, and an arylazo group); Y represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, a cycloalkyl group, an alkoxy group, a nitro group, a cyano group, a carboxylic acid ester group, an acyloxy group, an alkylsulfonyl group, an aryl group, a halogen atom, or group ##STR2## wherein R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, or R.sup.2 and R.sup.

Abstract: A process for preparing a calcium silicate shaped product comprises heat-reacting a calcareous source and a siliceous source dispersed in water to obtain an aqueous slurry containing a calcium silicate hydrate having a molar ratio of CaO/SiO.sub.2 being more than 1, adding a siliceous source to the aqueous slurry to bring the molar ratio of CaO/SiO.sub.2 to a level of from 0.85 to 1, and pressfilter-molding the aqueous slurry thereby obtained, followed by steam-curing and drying.

Abstract: A process for forming a ferrite film, which is characterized in that in an aqueous solution containing at least ferrous ions as metal ions, ferrous hydroxide ions FeOH.sup.+, or FeOH.sup.+ and other metal hydroxide ions, are uniformly adsorbed on the surface of a solid by an interfacial reaction at an interfacial boundary between the solid and the aqueous solution; and the adsorbed FeOH.sup.+ is oxidized to FeOH.sup.2+, whereupon FeOH.sup.2+ and metal hydroxide ions in the aqueous solution undergo a ferrite crystallization reaction to precipitate a ferrite layer on the surface of the solid.

Abstract: A process for preparing a rare earth oxide type phosphor comprises compressing a starting mixture composed essentially of a matrix material for said rare earth oxide type phosphor, an activator material and a flux under a presssure of from 250 to 1500 kg/cm.sup.2 to form a compact, and firing and unbinding the compact thereby obtained.

Abstract: A process for preparing an oxidation catalyst composition comprises mixing at least one crystalline composite oxide, as the first component, selected from the group consisting of (i) a crystalline composite oxide containing vanadium and phosphorus and showing the characteristic X-ray diffraction peaks as identified in the following Table A and (ii) a crystalline composite oxide containing vanadium and phosphorus and showing the characteristic X-ray diffraction peaks as identified in the following Table B, an aqueous solution, as the second component, containing vanadium and phosphorus, and silica sol, as the third component, to form an aqueous slurry, spray-drying the slurry, and calcining the solid particles thereby obtained:TABLE A ______________________________________ X-ray diffraction peaks (Anticathode: Cu--K.sub..alpha.) 2.theta. (.+-.0.2.degree.) ______________________________________ 15.7.degree. 19.6.degree. 24.2.degree. 27.1.degree. 28.8.degree. 30.4.degree.

Abstract: A process for producing a porous film or sheet, which comprises melt-molding a composition prepared by compounding 100 parts by weight of a polyolefin resin with 25 to 400 parts by weight of a filler and 1 to 100 parts by weight of a liquid or waxy hydrocarbon polymer into film or sheet, and stretching the resulting film or sheet.

Abstract: An N-(2,3-epoxypropylene)-N-aralkylsulfonamide of formula (I): ##STR1## wherein R.sup.1 is an alkyl group, a haloalkyl group, an aralkyl group or an aryl group which may be substituted, R.sup.2 and R.sup.3, independently of each other, are a hydrogen atom or an alkyl group, R.sup.4 and R.sup.4', independently of each other, are a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, R.sup.5, R.sup.6 and R.sup.7, independently of each other, are a hydrogen atom, an alkyl group, a haloalkyl group or an aryl group, and n is 0 or 1.The novel compounds have excellent herbicidal effect based on the physiological selectivity between rice plant and weeds, and have low phytotoxicity against rice plant.

Abstract: An artificial prosthetic material made of a carbon source as a main component comprises a porous structure layer comprising a fibrous material and pyrolytic carbon deposited fibrous material.

Abstract: A polyester resin composition comprising:(a) 100 parts by weight of a copolymerized polyester resina with a halogen content of 3 to 15% by weight prepared by copolymerizing terephthalic acid or an ester-forming derivative thereof; an alkylene glycol having 2 to 10 carbon atoms or an ester-forming derivative thereof; and a halogen-containing aromatic diol represented by the general formula: ##STR1## wherein R represents an alkylene of 2 to 4 carbon atoms, X represents a halogen atom, 1 and m each represents an integer of 1 to 4 and p and q each represents an integer of 1 to 10, and(b) 0.1 to 10 parts by weight of an acrylic resin b with a halogen content of not less than 10% by weight prepared by polymerizing a benzyl acrylate or benzyl methacrylate represented by the general formula: ##STR2## wherein Y represents a halogen atom, n represents, an integer of 1 to 5 and Z represents hydrogen or methyl.

Abstract: A process for producing aromatic polyester polycarbonate particles from a methylene chloride solution of an aromatic polyester polycarbonate comprises continuously supplying the methylene chloride solution of an aromatic polyester polycarbonate to a particle-forming tank, heating it while maintaining it in a suspended state in water to evaporate methylene chloride and to form aromatic polyester polycarbonate particles, subjecting at least a part of the resulting aqueous slurry withdrawn from the particle-forming tank and containing the aromatic polyester polycarbonate particles to wet pulverization treatment and recycling the treated slurry to the particle-forming tank.

Abstract: Glutamine derivatives and non-toxic salts thereof have been found to have immunomodulating activities.

Abstract: An anthraquinone dye for cellulose-containing fibers having the formula (I) indicated below and a process for producing the same are disclosed: ##STR1## wherein R.sup.1 is an amino group or a hydroxyl group; R.sup.2 is a hydrogen atom, a chlorine atom, a bromine atom, a cyano group or --SO.sub.2 R (wherein R is a lower alkyl group or a phenyl group); R.sup.3 and R.sup.4 are each a hydrogen atom, an amino group, a hydroxyl group, a nitro group, a chlorine atom or a bromine atom; Y is a bonding group --O-- or --S--; one of X.sup.1 and X.sup.2 is a hydrogen atom and the other is ##STR2## (wherein Z is a bonding group --O-- or --S--; R.sup.5 is a lower alkyl group, a lower alkoxy group or a hydrogen atom; R.sup.6 and R.sup.7 are each a hydrogen atom or an alkyl group, an alkenyl group, a cyanohexyl group, an aryl group or an aralkyl group which may be substituted by a cyano group, a hydroxyl group, a lower alkoxy group or a dialkylamino group, or NR.sup.6 R.sup.

Abstract: A liquid crystal composition comprising a host liquid crystal And a pleochroic dye dissolved therein as a guest material is described, which is characterized in that the pleochroic dye contains an anthraquinone-based dye yielding a Magenta color and/or an orange color.

Abstract: A calcium silicate shaped product is produced by forming an aqueous slurry of calcium silicate hydrate obtained by reacting a calcareous source with a siliceous source dispersed in water under heating; molding said aqueous slurry and heat-treating said molded product under the condition providing the equations (I) and (II);100.ltoreq..theta..multidot.T (I)50.ltoreq..theta..ltoreq.300 (II)wherein .theta. represents a temperature of the inner part of the molded product (.degree.C.) and T represents a time (hour) and providing a percent water loss of the treated molded product of less than 25 wt. %, before drying or steam-curing and drying the molded product.

Abstract: .DELTA.'-Tetrahydrophthalimides having a substituted oxy group at 3-position and a halogen atom at 4-position if necessary, a halogen atom at 2-position of phenyl group as N-substituent have excellent herbicidal activity and are useful as selective herbicides.