Kansai Paint Company, Ltd.

Haruo Nagaoka

Eisaku Nakatani

Toshio Fujibayashi

Masafumi Kume

Kenji Yamamoto

Teiji Katayama

Akira Tominaga

Koji Kamikado

Tadayoshi Hiraki

Yoichi Masubuchi

Tadashi Watanabe

Reiziro Nishida

Kiyoshi Kato

Osamu Isozaki

Tetsuo Aihara

Yasuyuki Hirata

Masami Sugishima

Hirokazu Hayashi

Kazuyuki Morimoto

Haruhiko Kataoka

Toshio Fujibayahsi

Kenichi Yoneyama

Resin composition for aqueous coating

A cationically electrodepositable finely divided gelled polymer obtained by, in the first step, emulsion polymerizing (A) a monomer component comprising

Cationically electrodepositable finely divided gelled polymer and

A resin composition for aqueous paint contains, as main components, (A) a resin obtained by reacting a certain epoxy resin, an amine compound and a phenol compound and substantially containing neither primary or secondary amino group nor epoxy group; (B) a resin having phenolic hydroxyl groups and substantially containing neither primary nor secondary amino group, and (C) a resin compound having glycidyl groups or epoxy groups. The composition is excellent in dispersibility of each component and in storage stability. It has an extremely low heating loss of the coating film, and is excellent in smoothness, corrosion resistance, adhesion, etc.

Resin composition for aqueous paint

A resin composition for aqueous coating, comprising as main components

Resin composition for aqueous coating containing glycidyl amines

Cationically electrodepositable (gelled) fine particles using, as the base, an epoxy resin-amine adduct having hydrolysable alkoxysilane groups, and a cationic electrodeposition paint composition comprising said fine particles. Said fine particles give a paint film having excellent corrosion resistance and are useful as a rheology-controlling agent for cationic electrodeposition paint. Said electrodeposition paint composition has an excellent edge-covering property, and a paint film formed therewith on an article to be coated can give improved corrosion resistance to the edges of said article and has good surface smoothness.

Cationically electrodepositable fine particles derived from

A resin composition for an aqueous coating composition contains as a main component a cationic resin (U) having a primary hydroxyl group, obtained by reacting (A) a phenol-novolak epoxy resin, (B) a primary or secondary amine compound having a primary hydroxyl group, and (c) a phenol compound having at lest one phenolic hydroxyl group per molecule. The composition has improved water dispersibility, bath stability and pigment dispersibility, and is useful as a cationic electrodeposition coating composition.

Resin composition for aqueous paints

A resin composition for an aqueous coating composition contains as a main component a cationic resin (U) having a primary hydroxyl group, obtained by reacting (A) a phenol-novolak epoxy resin, (B) a primary or secondary amine compound having a primary hydroxyl group, and (c) a phenol compound having at least one phenolic hydroxyl group per molecule. The composition has improved water dispersibility, bath stability and pigment dispersibility, and is useful as a cationic electrodeposition coating composition.

A resin composition for a cationically electrodepositable paint comprising

Resin composition for cationically electrodepositable paint comprising

A coating resin composition composed mainly of an epoxy resin derivative obtained by reacting an amine compound containing hydroxyl groups, one secondary amino group and an amide group in the molecule with an epoxy group of an epoxy resin. The resin composition can be used alone, or in combination with an epoxy resin containing, per molecule, on the average at least 2 epoxy functional groups each comprising an epoxy groups directly bound to an alicyclic ring and/or bridged alicyclic ring. The resin is useful in a cationically electrodepositable paint.

Coating resin composition

A cationically electrodepositable finely divided gelled polymer obtained by emulsion-polymerizing, in the presence of a water-soluble or water-dispersible cationic resin, a monomer component (A) comprising (a) a polymerizable unsaturated vinylsilane monomer having a vinylic double bond and a hydrolyzable akloxysilane group, (b) a polymerizable monomer having at least two radically polymerizable unsaturated groups in the molecule, (c) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group, and (d) other polymerizable unsaturated monomer, and a cationically electrodepositable finely divided gelled polymer obtained by emulsion-polymerizing, in the presence of the above finely divided gelled polymer, a monomer component (B) comprising (e) a blocked mono- or polyisocyanate in which the at least one isocyanate group in the molecule is blocked with a radically polymerizable monohydroxy compound, (f) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group, and (g) other polymerizable unsaturated monomer, said cationically electrodepositable finely divided gelled polymer having a core-sheath structure consisting of a core of the polymerization product of the monomer component (A) and a sheath of the polymerization product of the monomer component (B).

Cationically electrodepositable finely divided gelled polymers having a

A coating resin composition comprising, as a main component, an amino group-containing, lactone-modified epoxy resin derivative obtained by subjecting a hydroxyl group-containing epoxy resin having epoxy equivalent of 200-400 and a cyclic ester compound represented by the general formula (I) ##STR1## (R is a hydrogen atom or a methyl group and n is 3-6) to an addition reaction to obtain an addition product and then reacting the addition product with a polyphenol compound and an amino group-containing compound. The resulting product is then reacted with a partially blocked polyisocyanate.

Amino group-containing, lactone-modified epoxy resin with polyisocyanate

A resin composition for cationically electrodepositable paint comprising, as principal components, (A) a resin containing a hydroxyl group and a cationic group, (B) an epoxy resin containing, per molecule, on the average at least 2 epoxy group-containing functional groups with an epoxy group bound to an alicyclic skeleton and/or a bridged alicyclic skeleton, and (C) a finely divided gelled polymer, said finely divided gelled polymer (C) being obtained by, in the first step, emulsion polymerizing (I) a monomer component composed of

Resin composition for cationically electrodepositable paint containing

A coating resin composition comprising, as a main component, an amino group-containing, modified epoxy resin derivative obtained by subjecting a hydroxyl group-containing epoxy resin having epoxy equivalent of 200-400 and a cyclic ester compound represented by the general formula (I) ##STR1## (R is a hydrogen atom or a methyl group and n is 3-6) to an addition reaction to obtain an addition product and then adding to the addition product a polyphenol compound and an amino group-containing compound.

Addition product of lactone-modified epoxy resin with polyphenol and

A cationic electrodeposition coating composition comprising

Cationic electrodeposition coating composition

A coating resin composition comprising as a main component an epoxy-polyamine resin resulting from the addition of (d) an amine compound having active hydrogen to an epoxy resin obtained by reacting (a) a diepoxide compound with less than 1 equivalent, per equivalent of the diepoxide compound (a), of (b) a bisphenol, said diepoxide compound being obtained by reacting a dihydric dimer alcohol derived from an unsaturated fatty acid or aliphatic unsaturated alcohol having 14 to 24 carbon atoms with an epihalohydrin; and a coating resin composition comprising as a main component an epoxy-polyamine resin resulting from the addition of (d) an amine compound having active hydrogen to an epoxy resin obtained by reacting (a) a diepoxide compound with more than 1 equivalent, per equivalent of the diepoxide compound (a), of (b) a bisphenol and further reacting the product with (c) bisphenol diglycidyl ether, said diepoxide compound being obtained by reacting a dihydric dimer alcohol derived from an unsaturated fatty acid or aliphatic unsaturated alcohol having 14 to 24 carbon atoms with an epihalohydrin.

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Hiratsuka, Japan

Haruo Nagaoka