Abstract: A positive photosensitive resin composition including: a polysiloxane synthesized by hydrolyzing and partially condensing a specific organosilane and an organosilane that has a carboxyl group and/or a dicarboxylic acid anhydride structure; particles of one or more metal compounds selected from an aluminum compound, a tin compound, a titanium compound, and a zirconium compound, or composite particles of a silicon compound and one or more metal compounds selected from an aluminum compound, a tin compound, a titanium compound, and a zirconium compound; a naphthoquinone diazide compound; and a solvent.

Abstract: A positive photosensitive resin composition including: a polysiloxane synthesised by hydrolysing and partially condensing a specific organosilane and an organosilane that has a carboxyl group and/or a dicarboxylic acid anhydride structure; particles of one or more metal compounds selected from an aluminium compound, a tin compound, a titanium compound, and a zirconium compound, or composite particles of a silicon compound and one or more metal compounds selected from an aluminium compound, a tin compound, a titanium compound, and a zirconium compound; a naphthoquinone diazide compound; and a solvent.

Abstract: Disclosed is a positive photosensitive resin composition which contains a polisiloxane, a naphthoquinone diazide compound, and a solvent. The positive photosensitive resin composition is characterized in that the polysiloxane has: an organosilane-derived structure represented by the general formula (1): at a content ration of 20-80% inclusive of Si relative to the overall number of moles of Si atoms in the polysiloxane; and an organosilane-derived structure represented by general formula (2): The positive photosensitive resin composition exhibits high heat resistance, high transparency, and enables high sensitivity, high resolution patterning. The positive photosensitive resin composition can be used to form cured films such as planarization films used in TFT substrates, interlayer insulating films, core materials and cladding materials, and can be used in elements having cured films such as display elements, semiconductor elements, solid-state imaging elements, and optical waveguide elements.

Abstract: Survey of fishery resources is automatically effected by providing an identification element (i.e. IC tag) to each fishing gear, locating a plurality of such fishing gears under the sea to catch fishery resources, thereafter, using a reading device (e.g. tag reader) to read all the identification elements to obtain an identification data for each of the fishing gears, while obtaining an operating position in this survey by GPS device, and then counting number of fish catches for each of the fishing gears. All the data thus obtained are processed by a computer, so that a data of fishery resources distribution under the sea can be obtained automatically, without requiring much labor and expenses in conducting the survey. A device for effecting such method is also provided.

Abstract: Survey of fishery resources is automatically effected by providing an identification element (i.e. IC tag) to each fishing gear, locating a plurality of such fishing gears under the sea to catch fishery resources, thereafter, using a reading device (e.g. tag reader) to read all the identification elements to obtain an identification data for each of the fishing gears, while obtaining an operating position in this survey by GPS device, and then counting number of fish catches for each of the fishing gears. All the data thus obtained are processed by a computer, so that a data of fishery resources distribution under the sea can be obtained automatically, without requiring much labor and expenses in conducting the survey. A device for effecting such method is also provided.

Abstract: An improved flame-retardant composition and method for its use are provided. The composition imparts flame retardency to synthetic thermoplastic resins to prevent dripping of the melt of the resin when the resin is burnt. The composition comprises a flame retardant agent such as phosphate ester compound, optionally combined with a metal hydroxide, and an organopoly-siloxane-based graft copolymer of a (meth)acrylic acid ester such as methyl(meth)-acrylate. The flame retardant is used in an amount from 1-50 parts by weight per 100 parts by weight of the synthetic resin, and the graft copolymer provides 0.5 to 20 parts by weight of an organosilicone group per 100 parts by weight of the synthetic resin.

Abstract: A 6-fluoroprostaglandin having the formula: ##STR1## wherein A is a carbonyl group or a hydroxymethylene group, R.sup.1 is a substituted or unsubstituted C.sub.1 -C.sub.10 alkyl group or a substituted or unsubstituted 5- or 6-membered cycloalkyl group, R.sup.2 is a hydrogen atom or a C.sub.1 -C.sub.10 alkyl group, each of R.sup.3 and R.sup.4 which may be the same or different is a hydrogen atom or a protecting group, R.sup.5 is a hydrogen atom or a hydroxyl group, and is a single bond or a double bond, and its salt when R.sup.2 is a hydrogen atom.

Abstract: Methacrylic acid is prepared by reacting methacrolein with molecular oxygen in the vapor phase at a temperature of from 230.degree. C. to 450.degree. C. in the presence of a catalyst having the formula Mo.sub.12 P.sub..alpha.' X.sub..beta.' Y.sub..gamma.' O.sub..delta.' wherein X is at least one member of the group consisting of Cs and Tl:Y is at least one member of the group consisting of Cs and Tl; Y is at least one member of the group consisting of V, Zr, Nb, Ni, Ta and Fe; .alpha.'=0.1-3; .beta.'=0.2-9; .gamma.'=0.1-7; .delta.'=36-100.

Abstract: SF.sub.6 is produced by a pyrolysis of SF.sub.5 Cl obtained by a reaction of sulfur or sulfur chloride with chlorine and an amine/hydrogen fluoride complex or a reaction of sulfur tetrafluoride with chlorine and an amine/hydrogen fluoride complex.

Abstract: A process for producing sulfur tetrafluoride comprises reacting in the absence or presence of a solvent an amine/hydrogen fluoride complex having the formula:Am . (HF).sub.nwherein Am represents an amine selected from the group consisting of nitrogen-containing heterocyclic aromatic amines and derivatives thereof, and n represents 2-4, with sulfur dichloride, sulfur monochloride or a combination of chlorine and sulfur at a temperature of 0.degree. to 60.degree. C., the molar ratio of said amine/hydrogen fluoride complex to said sulfur dichloride, sulfur monochloride or sulfur being represented by the formula: ##EQU1## wherein n is as defined above, A represents moles of sulfur in said sulfur dichloride, sulfur monochloride or sulfur, and B represents moles of said amine/hydrogen complex.

Abstract: 5-Fluorouraacil is produced by reacting orotic acid with a fluorinating agent and then, decarboxylating the resulting 5-fluoro-orotic acid.

Abstract: A process for a separation of hexafluoropropylene oxide from hexafluoropropylene by an extractive distillation in the presence of a normally liquid inert compound such as 1,2-dichloroethane, monochlorobenzene, di-isopropyl ether and 1,1,2-trichloroethane.

Abstract: An unsaturated aldehyde having three to four carbon atoms is prepared by reacting the corresponding olefin with molecular oxygen in the vapor phase at a temperature of from 350.degree. to 520.degree. C in the presence of a metal oxide catalyst comprising the metallic components: (a) molybdenum; (b) at least one metal selected from the group consisting of niobium and tantalum; (c) tellurium; and (d) at least one metal selected from the group consisting of alkali metals, copper, arsenic, antimony, iron and nickel.

Abstract: Methacrylic acid is prepared by reacting methacrolein with molecular oxygen in the presence of a catalyst comprising (a) molybdenum, (b) phosphorus, (c) at least one element selected from the group consisting of thallium and cesium, (d) at least one element selected from the group consisting of vanadium, zirconium, tin, niobium, nickel, tantalum and iron, and (e) oxygen.

Abstract: Unsaturated carboxylic acids are prepared by reacting the corresponding unsaturated aldehyde with molecular oxygen in the presence of a catalyst of (a) molybdenum, (b) phosphorus, (c) antimony, (d) at least one element selected from the group consisting of tungsten, barium, chromium, lead, niobium, tantalum, tin, nickel, iron and zirconium, and (e) oxygen, and optionally (f) at least one element selected from the group consisting of strontium, titanium, germanium, cerium, and silver.

Abstract: An unsaturated aldehyde having three to four carbon atoms is prepared by reacting the corresponding olefin with molecular oxygen in the vapor phase at a temperature of from 350.degree. to 520.degree. C in the presence of a metal oxide catalyst comprising the metallic components: (a) molybdenum; (b) at least one metal selected from the group consisting of niobium and tantalum; and (c) at least one metal selected from the group consisting of tellurium, bismuth, cobalt, tungsten, indium, and titanium.