Abstract: The invention is to provide a surface-treated steel sheet of good white rust resistance with no chromium in its surface treatment film, and it has realized a surface-treated steel sheet of higher-level corrosion resistance by forming a reaction layer of plating metal with a barrier layer effective for anticorrosion not in a two-layered film but in a single-layered film.

Abstract: The invention is to provide a surface-treated steel sheet of good white rust resistance with no chromium in its surface treatment film, and it has realized a surface-treated steel sheet of higher-level corrosion resistance by forming a reaction layer of plating metal with a barrier layer effective for anticorrosion not in a two-layered film but in a single-layered film.

Abstract: A water-based coating composition for the inner surface of cans which comprises an aqueous medium and dispersed therein an acrylic-modified polyester resin (C) obtained by graft-polymerizing one or more polymerizable unsaturated vinyl monomers (B) comprising a carboxylated polymerizable unsaturated monomer with a polyester resin (A) having a number-average molecular weight of 2,000 to 100,000 and a hydroxyl value of 10 to 120 mg-KOH/g and containing ethylenically unsaturated double bonds, the resin (C) being in a neutralized form, and which further contains a resol resin crosslinking agent (D) in an amount of 1 to 40 parts by weight per 100 pans by weight of the acrylic-modified polyester resin (C): and a method of coating the inner surface of a can with the water-based coating composition.

Abstract: The present invention provides an aqueous coating composition for coating the inner surface of a can obtainable by subjecting an acrylic-modified polyester resin (C) obtainable by graft polymerizing a polyester resin having ethylenic double bonds (A) that has a number average molecular weight of 2,000 to 100,000 and a hydroxyl value of 10 to 120 mgKOH/g with a polymerizable unsaturated vinyl monomer (B) that includes a carboxyl-containing polymerizable unsaturated monomer to neutralization and dispersion in an aqueous medium, wherein the aqueous coating composition contains 1 to 40 parts by weight of resole phenol resin cross-linking agent (D) based on 100 parts by weight of the acrylic-modified polyester resin (C); and a method for coating the inner surface of a can using this aqueous coating composition.

Abstract: A water based coating composition prepared by reacting an epoxy resin (A) having a bisphenol A skeletal structure and a carboxyl group-containing acrylic resin (B) in the presence of an amine compound to form an acrylic-modified epoxy resin (C), and neutralizing, and dispersing the acrylic-modified epoxy resin (C) into an aqueous medium, an amount of a quaternary ammonium salt in the acrylic-modified epoxy resin (C) being in the range of 3.0×10−4 mol or less per one gram of the resin.

Abstract: There is disclosed a resin composition for electrodeposition paint comprising (A) a resin containing hydroxyl group, and (B) a polyisocyanate compound blocked with an amidoalcohol having at least one amide bond and at least one alcoholic hydroxyl group in the molecule, excellent in storage stability and capable of forming a coating film excellent in low temperature curability.

Abstract: A water based coating composition prepared by reacting an epoxy resin (A) having a bisphenol A skeletal structure and a carboxyl group-containing acrylic resin (B) in the presence of an amine compound to form an acrylic-modified epoxy resin (C), and neutralizing, and dispersing the acrylic-modified epoxy resin (C) into an aqueous medium, an amount of a quaternary ammonium salt in the acrylic-modified epoxy resin (C) being in the range of 3.0×10−4 mol or less per one gram of the resin.

Abstract: A cationic electrodeposition coating composition containing (A) an acrylic resin obtained by subjecting a mixture of 10 to 60% by weight of a hydroxyl group-containing acrylic monomer (a), 5 to 35% by weight of an amino group-containing acrylic monomer (b), 5 to 55% by weight of an aromatic vinyl monomer (c) and optionally another acrylic monomer (d) to a radical copolymerization reaction; (B) a hydroxyl group-containing acrylic resin-modified epoxy resin obtained by reacting 65 to 95% by weight of a resin composition consisting of 10 to 90% by weight of an epoxy resin (e) and 90 to 10% by weight of a hydroxyl group-containing acrylic resin (f) with 5 to 35% by weight of an amine compound (g); (C) a aliphatic and/or alicyclic blocked polyisocyanate compound, and (D) a bismuth compound component, a mixing ratio of the components (A), (B) and (C) being such that the component (A) is in the range of 40 to 90% by weight, the component (B) is in the range of 5 to 55% by weight and the component (C) is in the range

Abstract: There is disclosed a resin composition for electrodeposition paint comprising

Abstract: There is disclosed a resin composition for electrodeposition paint comprising (A) a resin containing hydroxyl groups, and (B) a polyisocyanate compound blocked with an amidoalcohol having at least one amide bond and at least one alcoholic hydroxyl group in the molecule, excellent in storage stability and capable of forming a coating film excellent in low temperature curability.

Abstract: A resinous composition for two-liquid type water paint crosslinkable at the normal temperature which has a long pot life and which is superior in properties such as hardness, gloss, solvent resistance and water resistance is disclosed. A resinous composition comprises: (A) a colloidal dispersion or emulsion obtained by copolymerizing a monomer mixture comprising a carbonyl group-containing unsaturated monomer, carboxyl group-containing unsaturated monomer and other unsaturated monomers to form a copolymer, neutralizing the copolymer with an alkali, dissolving or emulsifying it into water, and adjusting the pH to above 7; and (B) an easily water soluble dihydrazide compound having from 1 to 5 carbon atoms.

Abstract: A resinous composition for water paint crosslinkable at the normal temperature is provided, which is suitable for painting interiors and exteriors of buildings, bridges, vehicles and et al, which is non-odored, as well as which has advantages in safe and hygienic aspects. A resinous composition for a water paint, which is obtained by blending an aqueous dispersion of a carbonyl group-containing copolymer (A) with a carbonyl group-containing aqueous polyurethane resin (B) at the ratio of 100 parts by weight of solids in (A) to 5.about.150 parts by weight of (B), and then adding as a crosslinking agent a hydrazide compound having at least 2 hydrazide groups per one molecule (C) at the ratio of 0.01.about.2 moles of (C) to 1 mole of carbonyl group contained in the said (A) and (B) components, wherein the said polyurethane resin (B) being obtained by copolymerizing an unsaturated polyurethane resin obtained by the reaction of a diisocyanate compound with a polyol having a number average molecular weight of 60.

Abstract: Vacuum distillation residue oil having a Conradson carbon value of 5 to 40% and a specific gravity of 0.9 to 1.10 is thermally cracked in the presence of iron ore particles in fluidized state in a thermal cracking reactor thereby to produce light oils and cracked gases and to form by-product carbon, which is caused to deposit on the iron ore particles, which are then transferred to and heated at 800.degree. C. to 1200.degree. C. in a reducing furnace to be reduced in a solid state reaction, into sponge iron. Thus, heavy oil is thermally cracked and sponge iron is produced by an economical, integrated process.

Abstract: An acid-neutralizable cationic electrodepositable resin composition comprising as a film-forming ingredient the reaction product of(A) an epoxy resin or an adduct of an epoxy resin with a primary amine and/or a secondary amine,(B) an amino-terminated condensation product between a maleinized fatty acid and a polyamine, and(C) a partially blocked polyisocyanate compound.The composition can form a cathodically electrodepositable aqueous bath by being neutralized with an acid, and can give a coated film having superior surface smoothness and corrosion resistance with a high throwing power.

Abstract: An acid-neutralizable cationic electrodepositable resin composition comprising as a film-forming ingredient the reaction product of(A) an epoxy resin or an adduct of an epoxy resin with a primary amine and/or a secondary amine,(B) an amino-terminated condensation product between a maleinized fatty acid and a polyamine, and(C) a partially blocked polyisocyanate compound.The composition can form a cathodically electrodepositable aqueous bath by being neutralized with an acid, and can give a coated film having superior surface smoothness and corrosion resistance with a high throwing power.

Abstract: Iron-ore oxidized pellets are produced from magnetite concentrate by the addition to the magnetite concentrate of at least one calcium compound selected from the group consisting of slaked lime, quicklime and limestone, to a basicity of 1 to 5, granulating the mixture thus prepared, drying the same, preheating the same at a temperature of from 1000.degree. to 1150.degree.C for 3 to 10 minutes, and thereafter firing the same.