Abstract: An air blowing apparatus according to an embodiment of the disclosure includes a motor including a shaft, an impeller fixed to the shaft, an impeller cover, and a motor cover. The motor includes a rotor unit, a stator unit, and a bearing. The motor cover has a tubular shape extending in an axial direction and opened downward. The impeller includes multiple movable vanes, a lower shroud, an upper shroud, and an upper side balance correcting portion. The rotor holder includes a rotor holder cylindrical portion, a rotor holder bottom portion, and a lower side balance correcting portion which is formed in at least one of the rotor holder cylindrical portion and the rotor holder bottom portion.

Abstract: An air blowing apparatus according to an embodiment of the disclosure includes: a motor including a shaft extending vertically along a central axis; an impeller fixed to the shaft; and an impeller cover surrounding an upper and an outer side in a radial direction of the impeller and including a suction inlet at a center. The impeller includes multiple movable vanes, a lower shroud, and an upper shroud including a first raised portion and a second raised portion. A clearance in the axial direction between a lower surface of the impeller cover and at least one of the first and the second raised portion is smaller than a clearance in the axial direction between the lower surface of the impeller cover and the upper shroud on the inner side in the radial direction of the first raised portion.

Abstract: A curable top coating composition essentially including(A) a hydroxyl-containing vinyl type resin containing 45 to 55% by weight of styrene monomer as a copolymerized unit of the resin,(B) at least one member selected from among amino resins and (blocked) polyisocyanate compounds, and(C) a microparticulate polymer having an average particle diameter within the range of 0.01 to 1 .mu.m and containing 40 to 60% by weight of styrene monomer as a copolymerized component of each particle,wherein the cured film from the coating composition contains the styrene-derived benzene ring in a proportion of 13 to 40% by weight of the total resin solids;a coating method using the above coating composition, anda coated article obtainable by using the above coating composition.

Abstract: A heat-curable resinous coating composition comprising as a binder component(A) 5 to 90% by weight of a hydroxyl-containing resin selected from hydroxyl-containing acrylic resins and hydroxyl-containing polyester resins,(B) 5 to 50% by weight of an amino resin, and(C) 1 to 90% by weight of a crosslinkable resin selected from (C-a) polyfunctional resins having a number average molecular weight of at least 1000 and containing at least two carboxyl groups and at least two epoxy groups on an average per molecule and (C-b) polyorganosiloxanes having a number average molecular weight of at least 500 and containing at least two silanol groups on an average per molecule and if required, further containing an epoxy group.

Abstract: A dispersion of fine particles of a gelled polymer obtainable by copolymerizing and crosslinking a vinyl monomer mixture containing at least 0.5% by weight each of at least two vinyl monomers in the presence of a macromonomer A, which has a molecular chain of poly(12-hydroxystearic acid) and has at least about one polymerizable unsaturated double bond per molecule in average, and a macromonomer B, which is a copolymer of an ethylenic unsaturated monomer and has a solubility parameter value of from 7.5 to 9.2 and about 1.0 to about 1.

Abstract: A dispersion of fine particles of a gelled polymer obtainable by copolymerizing and crosslinking a vinyl monomer mixture containing at least 0.5% by weight each of at least two vinyl monomers in the presence of a macromonomer A, which has a molecular chain of poly(12-hydroxystearic acid) and has at least about one polymerizable unsaturated double bond per molecule in average, and a macromonomer B, which is a copolymer of an ethylenic unsaturated monomer and has a solubility parameter value of from 7.5 to 9.2 and about 1.0 to about 1.

Abstract: A coating method, which comprises(i) applying to a substrate a multilayer film-forming cationic electrodeposition paint composed of(A) a cationic electrodepositable epoxy resin having a surface tension of 40 to 60 dynes/cm and being able to form a cathodically electrodepositable aqueous bath by neutralization with an acid, and(B) a nonionic film-forming resin having a surface tension of 25 to 45 dynes/cm,the weight ratio of resin (A) to resin (B) being from 60:40 to 98:2 and the surface tension of resin (A) being greater than that of resin (B), and curing the coated film by heating,(ii) applying a water-base or organic solvent-base colored paint as a first top coat, and(iii) applying as a second top coat a powder paint capable of forming a transparent film which may be colored.

Abstract: A coating method characterized in that the method comprises the steps of applying a thermosetting coating composition containing a pigment to a substrate to be coated, applying a first clear coating composition to the coat to form a first clear coat, baking the two coats at the same time for curing, applying to the cured coats a second clear coating composition capable of forming a second clear coat having, when cured, a molecular weight between crosslinks of about 200 or less as determined by a xylene-swelling method and baking the second clear coat for curing.