Basf Coatings Gmbh

Akzo Nobel Coatings International B.v.

Basf Coatings Japan Limited

Yoshitomo Takeuchi

Nobuhiro Nishida

Takahiro Tsujita

Futoshi Nakanishi

Hiroki Mizutani

Taichiro Kohashi

Katsuhiko Ohsawa

Shinji Yagi

To provide a chromium-free paint composition which can provide paint films which are excellent in terms of corrosion resistance on the edge surfaces, scratched surfaces and worked parts of a pre-coated steel sheet, and the paint films which can be obtained by coating this chromium-free paint composition. A chromium-free paint composition which includes paint film-forming resin (A), anti-rust pigment (B), comprising at least one type of amorphous MgO&#x2014;VO-based compound, and crosslinking agent (C) which is characterized in that the mass content proportion of the aforementioned anti-rust pigment (B) is from 10 to 80 mass % with respect to the sum of the resin solid fraction mass of the aforementioned paint film-forming resin (A) and the aforementioned crosslinking agent (C), and the overall eluted ion content in a 10% aqueous solution of the aforementioned anti-rust pigment (B) is from 10 ppm to 100 ppm.

Chromium-free paint composition and paint films obtained by coating same

A coating material composition for providing coated films is disclosed. The coating material composition contains coated film forming resin (A), crosslinking agent (B), and resin beads (C), in which compression strength of the resin beads (C) at the time of the 10% pressurized deformation of an individual resin bead by means of a micro-compression tester lies between 0.1 MPa and 20 MPa and a recovery of the resin beads (C) following 90% pressurized deformation of an individual resin bead by means of a micro-compression tester is at least 80%.

Coating material composition, and coated films obtained by the coating thereof

A resin composition comprises (A) hydroxyl group containing acrylic resin having a hydroxyl group value of from 5 to 200 mgKOH/g and a number average molecular weight of from 500 to 20,000, (B) hexakisalkoxymethylated melamine resin, (C) de-watering agent, (D) blocked sulfonic acid compound, (E) silicate compound and (F) at least one type of material selected from among (a) organic resin particle of average particle diameter not more than 40 &#x3bc;m, (b) inorganic glass particles of average particle diameter not more than 100 &#x3bc;m and (c) inorganic fibers of average length not more than 300 &#x3bc;m.

Resin compositions for wrinkle pattern paints

Growing community of inventors

Yokohama, Japan

Yoshitomo Takeuchi