Kansai Paint Company, Ltd.

Jfe Steel Corporation

Reijiro Nishida

Shigeo Nishiguchi

Akira Tominaga

Yasuharu Nakayama

Sinzi Hirato

Kaoru Sato

Masaaki Yamashita

Akira Matsuzaki

Takahiro Kubota

Naoto Yoshimi

Hidehiko Haneishi

Shoichi Tanaka

Yasuo Takaya

Hisato Noro

Haruo Nakamichi

Masami Sugishima

Masahiro Murata

Shinji Miyatake

Sumio Noda

Hiroyasu Matsuki

Yuji Hirose

Keiji Inomata

Yoshikazu Morohoshi

Akiko Kato

Shingo Amaki

Hideo Yokoi

Masaki Murase

Makoto Asakura

Okai Kazuhisa

Makoto Hori

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. The surface-treated steel sheet is fabricated by applying a surface-treating composition that contains:

Surface-treated steel sheets of good white rust resistance, and method for producing them

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.

Water-based coating composition for inner surface of can and method of coating inner surface of can

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&times;10 mol or less per one gram of the resin.

Water based coating composition

Amidoalcohol-blocked polyisocyanate

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 of 5 to 40% by weight based on a total weight of solid contents in the components (A), (B) and (C), the component (D) being contained in such an amount as to be in the range of 0.01 to 10 parts by weight as a bismuth content per 100 parts by weight of a resin solid content in the electrodeposition coating composition.

Cationic electrodeposition coating composition

Hydroxyl group-containing resin and amidoalcohol-blocked polyisocyanate

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.

Resinous composition for two liquid type water paint crosslinkable at

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.about.10,000, a carboxyl group-containing diol and a hydroxyl group-containing ethylenic unsaturated monomer with a carboxyl group-containing ethylene unsaturated monomer.

Resinous compositions for a water paint

An acid-neutralizable cationic electrodepositable resin composition comprising as a film-forming ingredient the reaction product of

Process for electrodeposition of cationic resins

Cationic electrodepositable resin composition

Growing community of inventors

Chigasaki, Japan

Reijiro Nishida