Nippon Paint Compnay, Ltd.

Manabu Yoshioka

Teruzo Toui

Koichi Saito

Yoshio Eguchi

Akira Fushimi

Seigo Miyazoe

Masanobu Inoue

Satoshi Urano

Hisaki Tanabe

Akio Tokuyama

Shigeyuki Sasaki

Shuhei Yamoto

Masanori Ohiwa

Tsuyoshi Imamura

Nobuhisa Sudo

Atsuo Magoshi

Kazuhiko Nishimoto

Kazuhiko Usuki

Hifumi Egusa

Top coating composition

Method of forming coating

Clear coating with composition of acrylic and polyester polycarboxylic acids, polyepoxide and crosslinked resin particles

Process for multilayer coating film and automotive bodies

Automotive bodies provided with a multilayer coating film formed by a process comprising the application of a clear-coating for top coating, by the wet-on-wet technique, onto a base coating containing a color pigment and/or a luster pigment as applied to a coated automotive panel and then heating the coat layers for curing, said base coating comprising, as resin constituents, a product obtained by grafting a silicate compound (A) onto a hydroxyl-containing acrylic resin or polyester resin and amino and/or blocked polyisocyanate compound type curing agent.

Automotive bodies provided with multilayer coating film

Composition of acrylic polycarboxylic acid, polyester polycarboxylic acid and polyepoxide

Disclosed are aqueous crosslinked polymer particles which provide excellent properties and paint workability. Aqueous crosslinked polymer particles have 20 to 200 nm of an average particle size (De), measured by a transmission electron microscope after dyeing with uranyl acetate, and also have 0.5 to 0.9 of an average roundness (R) represented by the equation:

Aqueous crosslinked polymer particles and their production

The invention relates to formation of a resin film excellent in adhesion with metal or other material and also excellent in alkaline resistance. The invention presents a water-based resin dispersion having an acid value of 0 to 15 obtained by emulsion polymerization of a monomer mixture comprising, in 100 parts by weight of .alpha.,.beta.-ethylenically unsaturated monomer, (1) 1 to 20 parts by weight of .alpha.,.beta.-ethylenically unsaturated monomer with a .beta.-ketoester group, (2) 0.05 to 5 parts by weight of crosslinking .alpha.,.beta.-ethylenically unsaturated monomer with two or more radically polymerizable groups, and (3) the rest of other .alpha.,.beta.-ethylenically unsaturated monomer than (1) and (2), by using a radically polymerizable emulsifier at a ratio of 0.2 to 10 parts by weight against the total of 100 pats by weight of the .alpha.,.beta.-ethylenically unsaturated monomer.

Water-based resin dispersion and resin composition for coating

Growing community of inventors

Kariya, Japan

Manabu Yoshioka