Abstract: The present invention provides a base coating composition capable of forming a base coating film superior in design property (e.g., unevenness of a luster pigment), adhesion, and water resistance while satisfying environmental considerations such as shortening of drying time, and also provides a coated article obtained from the base coating composition. The present invention provides a base coating composition comprising a pigment (A), a hydroxy group-containing acrylic resin (B), a blocked isocyanate compound (C), crosslinked polymer fine particles (D) insoluble and stably dispersed in a solution of the hydroxy group-containing acrylic resin (B), and an acrylic resin (E) having a weight average molecular weight different from that of the hydroxy group-containing acrylic resin (B), wherein the specific hydroxy group-containing acrylic resin (B) is used and a viscosity recovery rate is adjusted. The present invention also provides a coated article formed using a base coating composition.

Abstract: The present invention provides a coating composition capable of forming a coating film having a good appearance and design of a coating film and having coating film properties such as scratch resistance with a good balance. Furthermore, the present invention provides a method for forming a multilayer coating film including forming a coating film using the coating composition of the present invention.

Abstract: The present invention provides a coating composition capable of forming a coating film having a good appearance and design of a coating film and having coating film properties such as scratch resistance with a good balance. Furthermore, the present invention provides a method for forming a multilayer coating film including forming a coating film using the coating composition of the present invention.

Abstract: It is an object of the present invention to provide a coating composition that is capable of forming a coating film having good coating film appearance (e.g., smoothness) and design properties and having well-balanced coating film properties such as scratch resistance, and that allows its coating film to be cured by a simple method because of being thermally curable. A further object of the present invention is to provide a method for forming a coating film, which comprises forming a coating film using the coating composition of the present invention. More specifically, the present invention provides a coating composition containing at least one branched polymer selected from a dendrimer and a hyperbranched polymer, and an isocyanate compound having an isocyanate group and an alkylsilanol group, and having the number of isocyanate functional group of 1 or more.

Abstract: The present invention provides: an aqueous primer coating composition, which can form a coating film excellent in the humidity-resisting adhesion and the gasohol resistance, and which can enhance the productivity in the coating steps; a process for formation of a coating film using this composition; and a coated article. The aqueous primer coating composition comprises an acid-anhydride-modified chlorinated polyolefin emulsion resin (A), an aqueous urethane dispersion (B), an aqueous epoxy resin (C), and an organic strong base and/or its salt (D); wherein: relative to the total nonvolatile content of the (A), (B), and (C), the nonvolatile content of the (A) is in the range of 20 to 60 weight %, that of the (B) is in the range of 10 to 40 weight %, and that of the (C) is in the range of 20 to 60 weight %, and further, the (D) is in the range of 1 to 5 weight %.

Abstract: The present invention provides: an aqueous primer coating composition, which can form a coating film excellent in the humidity-resisting adhesion and the gasohol resistance, and which can enhance the productivity in the coating steps; a process for formation of a coating film using this composition; and a coated article. The aqueous primer coating composition comprises an acid-anhydride-modified chlorinated polyolefin emulsion resin (A), an aqueous urethane dispersion (B), an aqueous epoxy resin (C), and an organic strong base and/or its salt (D); wherein: relative to the total nonvolatile content of the (A), (B), and (C), the nonvolatile content of the (A) is in the range of 20 to 60 weight %, that of the (B) is in the range of 10 to 40 weight %, and that of the (C) is in the range of 20 to 60 weight %, and further, the (D) is in the range of 1 to 5 weight %.

Abstract: The present invention provides: a process for formation of a coating film on a plastic material, which process enables formation of the coating film with good productivity wherein the coating film is excellent in the adhesion, the moisture-resisting adhesion, and the gasohol resistance, and has good appearance; and a coated article.

Abstract: The present invention provides: an aqueous primer coating composition of which the deterioration of the water resistance is prevented with the high adhesion maintained, and which is excellent in the gasohol resistance and the pigment dispersion stability; and a thing coated with this aqueous primer coating composition. The aqueous primer coating composition according to the present invention, comprises acid anhydride-modified poly(olefin chloride) emulsion resin (A), aqueous alkyd resin (B) and aqueous novolac-type epoxy resin (C), wherein the contents of the (A), (B), and (C) are (A) 20 to 60 weight %, (B) 10 to 60 weight %, and (C) 10 to 60 weight % in terms of solid content weight % to the total resin solid content in the composition. The coated thing, according to the present invention, is coated with the present invention aqueous primer coating composition.

Abstract: An object of the present invention is to provide an emulsion and its production process, which is used for coating of plastic materials such as polyolefin and has enough coating and adhesion to polyolefin materials and is excellent in compatibility with an acrylic resin and other resins and has high storage stability. An emulsion includes: A styrene-acryl-acid grafted polyolefin chloride, which includes a polyolefin chloride structure moiety (1), an acid anhydride and/or carboxylic acid structure moiety (2) bonded to the moiety (1) and a styrene-acryl based polymerization chain moiety (3) bonded to the moiety (2) excluding some of the acid anhydride groups and/or carboxylic acid groups, wherein a ratio of the moiety (2) to a sum of the moiety (1) and the moiety (2) is 1-10 weight %; an emulsifier; a basic substance made of at least one of amine compound and ammonia; and water.

Abstract: A photochromic brightening pigment comprises a brightening pigment and a photochromic material which is encapsulated so as to adhere it to the surface of the brightening pigment.

Abstract: Polymer particles having a small particle diameter and a narrow particle diameter distribution are obtained by a continuous polymerization method which does not accompany an increase of cohering products attaching to an inner face of a reaction vessel and an air-bubble invasion and, in which stirring of a material solution for polymerization is easy. An emulsion polymerization reaction or a suspension polymerization reaction is carried out by supplying a material solution for polymerization continuously to a clearance between coaxial double cylinders, which have stretched toward a direction crossing a horizontal plane, from the end side of the cylinders, by rotating at least one of the double cylinders round the axis and thereby, causing Taylor vortices. The polymer particles thus-formed are obtained by through from the other end side of the double cylinders to the outside.

Abstract: Disclosed is a coating composition curable at a low temperature, comprising (A) a hydroxyl-containing compound, (B) a metal chelate compound or a metal alcoholate compound and (C) a compound having an acid anhydride group. The composition further comprises a chelate-forming compound (D) and/or a tertiary amine (E).

Abstract: Polymer particles having a small particle diameter and a narrow particle diameter distribution are obtained by a continuous polymerization method which does not accompany an increase of cohering products attaching to an inner face of a reaction vessel and an air-bubble invasion and, in which stirring of a material solution for polymerization is easy. An emulsion polymerization reaction or a suspension polymerization reaction is carried out by supplying a material solution for polymerization continuously to a clearance between coaxial double cylinders, which have stretched toward a direction crossing a horizontal plane, from the end side of the cylinders, by rotating at least one of the double cylinders round the axis and thereby, causing Taylor vortices. The polymer particles thus-formed are obtained by through the other end side of the double cylinders to the outside.

Abstract: Disclosed is composite hollow particles which are excellent in solvent resistance and mechanical stability and have strong walls and which can be easily synthesized. The composite hollow particles are prepared by uniformly dispersing the following ingredients in an aqueous medium;(a) an ethylenically unsaturated monomer having at least two radical polymerizable double bonds in one molecule,(b) another polymerizable monomer which is different from the monomer (a),(c) organic particles having an average particle size of 0.01 to 5 micrometer,(d) a initiator, and(e) a dispersant,and then dispersion-polymerizing.

Abstract: Disclosed are pigment composite particles which are superior in water resistance, weather resistance, thermal stability and hardness. The pigment composite particles are prepared by suspension-polymerizing an aqueous suspension comprising(a) a pigment paste comprising pigment and a pigment grinding resin having a hydrophilic group of at least 0.2 mmol/g,(b) a polymerizable monomer and(c) a polymerization initiator.

Abstract: The present invention provides a curable composition which is cured at a relatively low temperature and, when cured, exhibits excellent physical properties. The curable composition comprises;(A) a compound having a carboxylic anhydride group,(B) a polyfunctional amine compound, a polyfunctional hydroxyl group-containing compound, a compound having both an amino group and a hydroxyl group or a compound latently having an amino group and/or a hydroxyl group, and(C) a polyhydric metal chelate compound or a polyhydric metal alcoholate compound.

Abstract: A metal chelate compound in which a chelate forming metal is coordinated with a ligand represented by the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3, which are the same or different, represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, X represents --NR.sup.4 -- (wherein R.sup.4 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms), an oxygen atom or a sulfur atom, n is an integer of 1 to 3, and j is an integer of 1 to 3, and a coating composition containing the same.