Nippon Paint Compnay, Ltd.

Other

Toyota Jidosha Kabushiki Kaisha

Nissan Motor Company Limited

Hisaki Tanabe

Yoshio Eguchi

Hirotoshi Umemoto

Ryozo Takagawa

Shinji Nakano

Hiroharu Ohsugi

Yasuhiko Nakae

Koichi Tsutsui

Akihiro Kanakura

Tadahiko Nishi

Mitsuo Yamada

Masahiko Yamanaka

Tatsuya Ishihara

Nobuhisa Sudo

Tetsuji Mizuno

Teruzo Toui

Takashi Moriwake

Shingi Nakano

Goro Nagao

Ryuzo Mizuguchi

Satoshi Urano

Takeshi Endo

Takakazu Yamane

Mitsuhiro Takarada

Yuji Yoshikawa

Yoshitaka Okude

Akio Kashihara

Naoya Yabuuchi

Kenshiro Tobinaga

Mamoru Seio

Hiroshi Kubota

Manabu Yoshioka

Tasaburo Ueno

Yoshio Kojima

Tsuyoshi Harakawa

Takashi Irie

Koichi Fukuda

Hideaki Ogawa

Hiroto Yoneda

Yoshikazu Yamagami

Kunihiko Takeuchi

Koichi Inoue

Yoshinori Narita

Hideaki Tsujioka

Atsushi Ohgaki

Masahiko Togo

Haruhiko Satoh

Yutaka Takeuchi

Koji Asakura

Junji Shimada

Mirei Kato

Shigeru Mikami

Eiji Yamanaka

An automotive clear coating composition includes a hydroxyl group-containing acrylic resin obtained using hydroxyalkyl(meth)acrylate having a hydroxyalkyl group having 4-9 carbon atoms as at least a part of its monomer; and a polyfunctional isocyanate compound in which at least a part thereof is an isocyanurate type isocyanate compound. The prepared composition has 25 to 50 mass % of a soft segment part with respect to a total solid content of such acrylic resin and the polyfunctional isocyanate compound, and a ratio of a soft segment part derived from a lactone-containing monomer with respect to the total solid content of such acrylic resin and the polyfunctional isocyanate compound of not more than 4.5 mass %. A cured coating film has a dynamic glass transition temperature within a range of 30 to 60&#xb0; C. The soft segment part is represented by &#x2014;CH)&#x2014; wherein n represents an integer of 4 or more.

Clear coating composition for an automobile and method of forming a multi-layer coating film using the same

Curable coating composition and coating film forming method

It is an object of the invention to provide a clear coating composition, which can give coating films showing good water repellency, in other words a factor giving a care-free and deluxe feeling to car owners, and which are excellent in non-sanding recoating dirtied coatings after due repair, as well as a method of forming a coating film and a multilayered coating film. The invention provides a clear coating composition which comprises (A) 100 parts by mass of the sum of a crosslinkable coating film-forming resin and a crosslinking agent on a solid basis and (B) 0.01 to 2 parts by mass of a ladder silicone copolymer obtainable by copolymerizing (b-1) a (meth)acryloxyalkyl-containing ladder silicone oligomer, (b-2) a crosslinkable functional group-containing ethylenically unsaturated monomer and optionally (b-3) another ethylenically unsaturated monomer.

Clear coating composition, method of forming a coating film and multilayer coating film

Top coating composition

Clear coating for top coating of automobiles, method of forming multilayer coating and automotive body

The present invention is a method of forming a chipping-resistant composite paint film comprising applying an anti-chipping primer and an intermediate coating successively in the wet-on-wet method onto a electrodeposition coat baked on a substrate and baking the two wet coat in one step, wherein the anti-chipping primer comprises (a) an aqueous dispersion of an ethylene copolymer, (b) a water-based urethane resin, and (c-1) a water-miscible organic solvent having a boiling point of not lower than 80.degree. C. and of not higher than the baking temperature of the paint, or (c-2) a melamine resin. The present invention ensures improved appearance and chipping resistance of the paint film.

Method of forming a chipping-resistant composite paint film

A polyurethane dispersion is disclosed, which is obtained by a process comprising the step of reacting a urethane prepolymer having both at least one anionic group and at least one cationic group in the molecule and having an isocyanate group at each of molecular ends thereof with a chain extender in water. The polyurethane dispersion is capable of forming a coating film having high acid and alkali resistance and has satisfactory dispersion stability.

Urethane prepolymer, process for producing urethane prepolymer,

A method of forming multilayer coatings including a pigmented base coat layer applied on a substrate such as automobile bodies comprises applying, as an outermost layer, a clear coat composition comprising (a) a resin having pluralities of hydrosilyl groups and alkenyl groups in the molecule or a blend of resins having a plurality of hydrosilyl groups in the molecule and a plurality of alkenyl groups in the molecule, respectively, and (b) a compound catalyzing the addition reaction of the hydrosilyl group to the alkenyl group.

Method of forming multilayer coatings on a substrate

A curable resin composition containing (a) a homo- or copolymer of an organohydrogenpolysiloxane macromonomer, (b) an alkenyl group-containing polymer, and (c) a hydrosilylation catalyst is disclosed. The organohydrogenpolysiloxane macromonomer may be incorporated into a single polymer entity together with an alkenyl group-containing monomer unit to produce a self-crosslinkable copolymer.

Curable resin composition comprising an acrylic copolymer containing an

Disclosed is a coating composition comprising: (1) a polycarbonate polyol having an average molecular weight of 400-10,000 and a hydroxyl value of 50-350, and (2) a melamine resin curing agent, wherein polyhydric alcohols constituting said polycarbonate polyol comprises at least 10 mol % of branched diols, at least 10 mol % of tri- or higher-hydric alcohols and the balance of the other polyhydric alcohols, and a ratio of component (1) / component (2) is within the range of 90/10-50/50 based on solid weight.

Polyfunctional polycarbonate polyol

The present invention provides the improvement of coating workability (e.g. pinhole resistance, sagging resistance, etc.) of an aqueous coating composition. That is, the present invention provides an aqueous coating composition which comprises: (A) an acrylic resin and/or a polyester resin having an acid value of 10 to 100, a hydroxyl value of 20 to 300 and a number average-molecular weight of 1,000 to 50,000; (B) a polycarbonate resin having a number average-molecular weight of 1,000 to 10,000 which contains a hydroxyl group at the terminal end; and (C) a curing agent.

Aqueous coating composition and coating process using the same

The present invention provides a paint film with fewer craters and indentations, while maintaining performance as an electrodeposition paint. The electrodeposition paint composition contains an aqueous dispersing system containing an electrodepositable resin and a block polymer containing polysiloxane units and polyalkylene oxide units.

Electrodeposition paint composition containing

The present invention provides a powder coating composition which is suitable for precoated steel plates. The powder coating composition has excellent storage stability (e.g. blocking resistance) and provides a cured film having good weather resistance and a good balance of hardness and processability. The powder coating composition comprises;

Powder coating composition

Disclosed is an organic polymer microparticle which is obtainable from copolymerization of (a) an ethylenically unsaturated amine polymer obtained by reacting an amine polymer having at least two primary amino groups with 0.01 to 0.99 molar equivalents based on the amount of the primary amino group, of an unsaturation introducing monomer having at least one functional group which is reactive with the primary amino group and an ethylenic double bond with (b) 10 to 99000 parts by weight based on the total amount (100 parts by weight) of the amine polymer and the unsaturation introducing monomer, of a matrix forming ethylenically unsaturated monomer, in an aqueous medium. A process for producing the organic polymer microparticle is also disclosed.

Organic polymer microparticle and process for producing the same

Growing community of inventors

Kyoto, Japan

Hisaki Tanabe