Abstract: The present invention provides a water-based intermediate coating composition having excellent chipping resistance and water resistance when made into a multilayer coating film, and providing excellent adaptability with a top coating film and a base coating film and excellent finish appearance, and a method for forming a multilayer coating film using the same.

Abstract: The present invention provides a water-based intermediate coating composition having excellent chipping resistance and water resistance when made into a multilayer coating film, and providing excellent adaptability with a top coating film and a base coating film and excellent finish appearance, and a method for forming a multilayer coating film using the same.

Abstract: A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and, optionally, (d) a resin that exists in the liquid form at room temperature.

Abstract: A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and/or (d) a resin that exists in the liquid form at room temperature.

Abstract: A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and/or (d) a resin that exists in the liquid form at room temperature.

Abstract: Finely divided hydrophobic silica powder having a number average particle size from 3 to 10 nm and a BET surface area from 195 to 290 m.sup.2 /g is dry blended with particles of a thermosetting resin composition having a volumetric average particle size from 5 to 20 .mu.m in a proportion from 0.05 to 2.0 parts per 100 parts of the resin particles on weight basis. Sieving efficiency of the powder coating composition thus processed is remarkably improved.

Abstract: Disclosed is an acid-epoxy curing type powder coating composition which forms a coated film having excellent yellow resistance and appearance. The powder coating composition comprises:(A) an epoxy group-containing acrylic resin prepared by polymerizing the monomer mixture which comprises,(a) 35 to 65% by weight of an epoxy group-containing ethylenically unsaturated monomer, and(b) remainder amount of an ethylenically unsaturated monomer which is different from the epoxy group-containing ethylenically unsaturated monomer;(B) a polycarboxylic acid; and(C) an antioxidant having a melting point of from 50.degree. to 140.degree. C.

Abstract: A waterborne paint is provided by dissolving or dispersing a polyester resin and a crosslinker in an aqueous medium containing a base. The polyester resin contains a hydroxy-terminated polyalkadienediol having an average degree of polymerization from 5 to 50, a hydrogenated product thereof or a mixture thereof in a proportion from 1 to 30% by weight of the entire polyester-forming reactants, and has an acid number from 5 to 150, a hydroxyl number from 30 to 250. The paint is useful for forming a multilayer coating film on automobile bodies by applying the paint between an electrodeposition coating layer and a top coating layer.

Abstract: 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.

Abstract: A heat sensitive color developing material containing an electron donating color forming organic compound, a heat activating compound, and a color developer. This material exhibits excellent heat sensitivity and enables rapid color development at low cost.

Abstract: 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;(I) 95 to 70% by weight of a polyester resin having a glass transition temperature of 40.degree. to 70.degree. C., prepared from (i) and acid component containing at least 80 mole % of an aromatic dicarboxylic acid with (ii) a polyol component which comprises(a) at least 50 mole % of neopentyl glycol, and(b) 1 to 10% by weight of a diol selected from the group consisting of a linear chain C.sub.8 -C.sub.16 alkylene diol, 2-methyl-1,8-octane diol and a mixture thereof, and(II) 5 to 30% by weight of a curing agent.

Abstract: A heat sensitive color developing material containing an electron donating color forming organic compound, a heat activating compound, and a color developer. These materials have excellent heat sensitivity in which color can be developed rapidly and can be produced and easily used.

Abstract: A heat sensitive color developing material containing an electron donating color forming organic compound, a heat activating compound, and a color developer. These materials have excellent heat sensitivity in which color can be developed rapidly and can be easily produced and easily used.

Abstract: Benzyl pyridinium or ammonium salts of a non-nucleophilic anion are useful as a cationic polymerization initiator having a heat latency. A variety of resinous compositions containing this initiator is also disclosed.