Kanegafuchi Kagaku Kogyo Kabushiki Kaisha

Kaneka Corporation

Toshiro Nanbu

Hisao Furukawa

Hirotoshi Kawaguchi

Shoichi Matsumura

Yasushi Kato

Jo Kawamura

Masaharu Inoue

Seigo Nakamura

Yoshiyuki Kono

Toan Harimoto

A curable topcoat composition comprising (A) 100 to 30 parts by weight of a vinyl copolymer having a main chain substantially composed of a vinyl copolymer, having both at least one specific hydrolyzable silyl group and at least one hydroxyl group in its main chain end and/or side chain, and having a carbonato structure in its main chain and/or side chain, (B) 0.001 to 70 parts by weight of a hydroxyl group-containing compound having no hydrolyzable silyl group, and (C) a solvent, the total of the components (A) and (B) being 100 parts by weight. The coating films formed from the curable composition are excellent in acid resistance, scratch resistance, appearance and thermosetting property and, in particular, the composition can be suitably used as a top coat for automobiles.

Curable composition for top coating and articles coated therewith

Coating composition

When a thermosetting composition comprising (A) a resin having hydroxyl group, (B) a hydrolyzable silyl group-containing polymer, (C) a hydrolyzable silicon compound and (D) a curing catalyst is used, coating materials having no problem as to bad-smelling can be obtained and the coating films formed therefrom are improved in physical properties such as adhesion, solvent resistance and hardness.

Thermosetting silicon-containing composition

A thermosetting composition (A) a hydroxyl group-containing resin, (B) an alkoxysilane group-containing copolymer and (C) a curing catalyst. The film of the composition is excellent in not only adhesion, gel percentage and surface hardness but also solvent resistance, acid resistance, and stain resistance.

Thermosetting composition

A one component composition suitable for use as coatings which are excellent in storage stability and coating workability, which comprises:

One component composition containing a catalyst and having increased

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Toshiro Nanbu