Abstract: A method for forming a relief pattern on a substrate which comprises the steps of: (I) allowing a photosensitive sheet to adhere on said substrate, said photosensitive sheet containing a photo-impervious ink layer, releasing layer, pattern forming layer and photosensitive resin layer; (II) radiating actinic rays on said photosensitive sheet to cure an irradiated portion of said photosensitive resin layer; (III) peeling off the upper layers of said photosensitive sheet; and (IV) washing away the un-cured portion of said photosensitive resin layer to produce a fine and decorative relief pattern.

Abstract: When laser rays are radiated on metallic compounds sucn as oxides, hydroxides, sulfides, carbonates, chromates and titanates, colors of these metallic compounds can be changed at high speeds. By application of this discoloration technique, it is made possible to cause discoloration selectively even at very minute areas of molded articles of these metallic compounds. Therefore, this technique can be applied advantageously and effectivey to recording, image reproduction and formation of electric circuits. If these metallic compounds especially oxides, are made semiconductors prior to irradiation of laser rays, the discoloration effects can be greatly enhanced. In conducting this method, laser rays having a wavelength from the visible to infrared region can be effectively employed.

Abstract: A composition for preparing an electroconductive resin with excellent properties of electrical conductivity, resistance to organic solvent, mechanical strength, adhesiveness and film forming property, and said composition consisting of at least:Alkylene phosphoric esters, alkylene phosphate esters, alkylene sulfonic esters or alkylene sulfonate esters of acrylic acid or methacrylic acid; andA polyfunctional unsaturated compound having two to four polymerizable ethylenically unsaturated groups;And, if necessary, further containing a polymeric material as a film-forming agent and/or a polymerizable ethylenically unsaturated compound; and/orA polymerization initiator.

Abstract: In an aqueous coating composition comprising a vinyl polymer emulsion prepared by subjecting a vinyl monomer to emulsion polymerization in an aqueous medium in the presence of maleinized polybutadiene used as a dispersion stabilizer, an improvement which is characterized in that at least one copolymer is further incorporated, said copolymer being composed of (A) at least one monomer prepared by reacting one glycidyl ester of acrylic acid and methacrylic acid with at least one fatty acid of drying oil fatty acid and semi-drying oil fatty acid, (B) at least one .alpha.,.beta.-ethylenically unsaturated acid and (C) at least one unsaturated monomer containing substantially no carboxyl group and having a Q value of at least 0.1 as determined by Q-e theory.

Abstract: An aqueous coating composition comprising an aqueous medium and a binder resin dispersed therein as neutralized with a base, the binder resin being a copolymer of (A) a monomer prepared by reacting at least one glycidyl ester of acrylic acid and methacrylic acid with at least one fatty acid of drying oil fatty acid and semi-drying oil fatty acid, (B) and .alpha.,.beta.-ethylenically unsaturated acid and (C) an unsaturated monomer containing substantially no carboxyl group and having a Q value of at least 0.1 as determined by Q-e theory.

Abstract: A method for improving emulsion paint which is characterized in that 1 to 40 parts by weight as solids of aqueous acrylic resin solution is added to 100 parts by weight as resin solids of emulsion paint, said aqueous acrylic resin solution being produced from ethylenically unsaturated monomer having tertiary amine group, ethylenically unsaturated monomer having carboxyl group(s) and other ethylenically unsaturated monomer. The improved emulsion paint thereby formed has a low thixotropic property and an excellent coating property, and forms excellent coating film with good water resistance, moisture resistance and chemical resistance.

Abstract: Inorganic coating compositions with alkali silicate comprising a viscous aqueous suspension which is obtained by heating above 50.degree. C. the mixture comprising an aqueous 10-50 weight percent solution of alkali silicate and 5-300 weight percent (vs. the solid component in said 10-50 weight percent aqueous solution) of amorphous silica powder hardenable upon application of a hardener solution comprising a surface tension reducing agent and an aqueous solution of at least one compound selected from phosphoric acid, phosphates, chlorides, sulfates, nitrates, fluorosilicates and ammonium persulfate.

Abstract: A liquid crystal composition for indicating the occurence of an electric field which has a long effective life, assumes a clear color change and comprises from about 10 to about 60 % by weight of a cholesteryl carbamate having, as the substituent group at the nitrogen atom of the carbamate, an aliphatic hydrocarbon group, a monocyclic aromatic hydrocarbon group or a substituted hydrocarbon group, and from about 40 to about 90 % by weight of a liquid crystal component compatible with the carbamate comprising cholesteric liquid crystal substances other than the cholesteryl carbamate.

Abstract: A method for forming coating films which can provide coating films having good surface appearance and being excellent in such properties as impact resistance, adhesion to the substrate article, flexibility and chemical resistance, said method comprising coating a powdery composition of a thermoplastic resin having 0.5 to 3.5 polymerizable unsaturated bonds per 1000 of the molecular weight on an article to be coated, heat-melting the powdery resinous composition, and curing the molten film under application of ionizing radiation or ultraviolet radiation.

Abstract: A method for coating the inner surface of a metal pipe having an inner diameter of about 1 to 15 cm, which comprises feeding from one end of said metal pipe dry particles of a coating composition into the interior of the metal pipe preheated at a temperature of from a softening point of said coating composition to below a melting point thereof, sucking air at the same time from the other end of the metal pipe so as to form an air stream carrying the particles and flowing in the interior of the pipe at a flow rate of about 4 to 20 m/sec and to allow the particles to deposit on the inner surface of the pipe, and fusing the deposited particles at a reduced pressure of 10 to about 100 mm Hg to form a continuous film on the inner surface of the pipe.

Abstract: In an aqueous coating composition comprising an aqueous medium having dispersed therein an unsaturated polycarboxylic acid resin neutralized with a base and a resol-type phenolic resin, an improvement characterized in that said composition further contains a copper compound dispersed in the aqueous medium in an amount of 0.0005 to 5% by weight in terms of copper metal, based on said polycarboxylic acid resin.

Abstract: A powder coating composition for electrodeposition which comprises powdery particles having 0.1 to 50 microns particle size wetted with an organic solvent having a boiling point of 50.degree. to 250.degree.C in a range of 5 to 100 parts by weight per 100 parts by weight of the powdery particles in said powder coating composition and dispersed in an aqueous medium containing a surface active agent of 0.05 to 5 parts by weight per 100 parts by weight of the powdery particles in said powder coating composition to be dispersed, in which said organic solvent does not dissolve the organic high molecular weight compound in said powder coating composition and is scarcely soluble with said aqueous medium which is water or a mixture of water and water soluble organic solvents.

Abstract: In coating aluminum or aluminum alloy by contacting the aluminum or aluminum alloy with hot water or steam to form an aluminum oxide layer on its surface and thereafter electrophoretically coating the aluminum or aluminum alloy with an electrophoretic coating composition to form a resin layer, a process which is characterized in that said electrophoretic coating composition contains at least one water-soluble salt of an oxyacid selected from the group consisting of silicic acid, boric acid, phosphoric acid, vanadic acid, tungstic acid, permanganic acid, molybdic acid and stannic acid.

Abstract: A process for coating an aluminum or aluminum alloy comprising the steps of subjecting aluminum or aluminum alloy to boehmite treatment or chemical conversion treatment, conducting electrolysis using the resulting aluminum or aluminum alloy as an electrode in an aqueous solution of a water-soluble salt of at least one oxyacid, and thereafter coating electrophoretically the aluminum or aluminum alloy with an aqueous organic coating composition containing a binder resin and a water-soluble salt of at least one oxyacid to form a resin layer, said oxyacid contained in the aqueous solution and aqueous organic coating composition being at least one oxyacid selected from the group consisting of silicic acid, boric acid, phosphoric acid, molybdic acid, vanadic acid, permanganic acid, stannic acid and tungstic acid.

Abstract: A powder coating composition for electrodeposition which comprises powdery particles having 0.1 to 50 microns particle size wetted with an organic solvent having boiling point of 50.degree. to 250.degree.C in a range of 5 to 100 parts by weight per 100 parts by weight of the powdery particles in said powder coating composition and dispersed in an aqueous medium containing a surface active agent of 0.05 to 5 parts by weight per 100 parts by weight of the powdery particles in said powder coating composition to be dispersed, in which said organic solvent does not dissolve the organic high molecular weight compound in said powder coating composition and is scarcely soluble with said aqueous medium which is water or a mixture of water and water soluble organic solvents.

Abstract: A coating process for articles made of aluminum or aluminum alloy to form a composite coating which is excellent in adherent and anti-corrosive properties, in which the articles are treated in an aqueous solution of water-soluble oxyacid salts selected from the group consisting of silicates, borates, phosphates, chromates, molybdates, vanadates and permanganates with applying electric current to form a conversion coating layer on the aluminum surface, and are further treated with a water-soluble or water-dispersible coating composition to form a finish coat on the conversion coating layer particularly by dipping or electrodeposition.

Abstract: Inorganic anticorrosive coating material which forms excellent coating film having several good properties of hardness, water resistance, anticorrosiveness, drying property and so forth. The coating material is prepared by the steps of: mixing an aqueous solution of water soluble silicate and one member or a mixture of vanadium and vanadium compounds; causing thus obtained mixture to react at the room temperature or by heating to form an aqueous solution of modified water soluble silicate; and dispersing anticorrosive metallic powder into said aqueous solution of modified water soluble silicate.

Abstract: A method for curing a coating film wherein a filmforming, polymerizable, organic coating material is electrodeposited upon an electroconductive object as an anode immersed in an aqueous dispersion of an acidic alkyd resin modified with conjugated unsaturated fatty acid and/or oil, wherein the acidic alkyd resin has an oil length in the range of 10 to 60 wt % and a resin acid value in the range of 30 to 100, being neutralized with water soluble bases, and then the curing coating film thus obtained by applying ionizing radiation.

Abstract: A transparent image forming sheet and method for forming transparent images on the sheet, in which the sheet comprises a transparent film base, an opaque conductor layer being formed on one side of the transparent film base and a semiconductive layer containing powder of metallic oxide semiconductor, a mixture of non-conductive metallic compound and conductive substance, or polymeric semiconductor, and the method comprises the steps of applying electric voltage between the semiconductive layer and the conductor layer through recording stylus and development using corrosive liquid and/or dissolving solvent.The transparent image sheet can be used for several optical purposes including the preparation of a printing plate for photographs without the screen process.

Abstract: A liquid unsaturated resin composition for coating material which comprises (A) 60 to 95 parts by weight of liquid resin and (B) 5 to 40 parts by weight of polyvinyl monomer, having high boiling point, in which said liquid resin is produced by adding a compound having both epoxy group and polymerizable unsaturated group to a linear polyester having terminal carboxyl groups and said linear polyester is produced by condensation of (a) aromatic dibasic acid or its acid anhydride and (b) aliphatic saturated compounds consisting of saturated aliphatic dibasic acid and saturated aliphatic glycol.