Abstract: An inspection apparatus includes: a first light source having a first plurality of surface emitting laser elements which emit fundamental waves, respectively; a first illumination optical system configured to illuminate a first plurality of fundamental waves emitted from the first plurality of surface emitting laser elements on an object to be inspected; and a stage on which the object to be inspected is placed.

Abstract: An inspection apparatus includes: a first light source having a first plurality of surface emitting laser elements which emit fundamental waves, respectively; a first illumination optical system configured to illuminate a first plurality of fundamental waves emitted from the first plurality of surface emitting laser elements on an object to be inspected; and a stage on which the object to be inspected is placed.

Abstract: An aqueous coating composition for a plastic substrate which is a dispersion in (a) an aqueous medium of the following components:(b) 5-40 wt. %, calculated as resin solids, of a water-miscible olefin resin modified with a carboxyl-containing unsaturated monomer;(c) 90-40 wt. %, calculated as resin solids, of at least one water-miscible urethane resin;(d) 5-20 wt. %, calculated as resin solids, of a water-miscible epoxy resin; and(e) optionally a pigment.

Abstract: Using a treating solution which is easy to dispose after use, the surface of a plastic material is treated so that the treated surface has good adhesion to a coating film to be formed thereon. An aqueous dispersion containing an abrasive which is harder than a plastic material to be surface-treated, is pressurized to about 1.0-200 kg/cm.sup.2 and then is injected onto the surface of said plastic material through an injection nozzle. An airless spray gun having said injection nozzle is supported by a polyaxis type or articulated type robot. Thus, the surface of a plastic material is ground and converted into a rough surface and then coatings are applied thereon.

Abstract: A process for coating a surface of a substrate containing a metallic member, which comprises first coating a cationic electrodeposition coating paint on the metallic member, then integrating the coated metallic member with a plastic member if required, coating an aqueous barrier coat composed mainly of a composition comprising an olefin resin and a urethane resin, further coating an intermediate coating paint if required, and thereafter coating a top coating paint.

Abstract: A process for coating a metallic substrate, characterized by applying on a metallic substrate a electrocoating paint, applying thereon a barrier coat comprising a film-forming thermoplastic resin other than a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -75.degree. C., optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.

Abstract: A process for coating a metallic substrate, characterized by applying on a metallic substrate an electrocoating paint, applying thereon a barrier coat comprising a film-forming thermoplastic resin other than a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -75.degree. C., optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.

Abstract: An organic solvent-type coating composition comprising as a main film-forming component a modified polyolefin composed of an adduct of a monoepoxy compound with an polyolefin having maleic acid or its anhydride grafted thereto, and a method of coating a plastic material using the coating composition.

Abstract: A process for coating automotive bodies which are composed of metallic members and plastic members, said process comprising assembling metallic members and plastic members into automotive outer bodies, applying a cation type electrocoating to the metallic members either before or after the assembling, applying onto the surfaces of the two types of members including the electrocoated surfaces of the assembled body a barrier coat comprising a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -60.degree. C., optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.

Abstract: A process for coating a metallic substrate, characterized by applying on a metallic substrate a cation type electrocoating paint, applying thereon a barrier coat comprising a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -60.degree. C. and a corrosion-preventive pigment, optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.

Abstract: A process for coating a metallic substrate, characterized by applying on a metallic substrate a cation type electrocoating paint, applying thereon a barrier coat comprising a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -60.degree. C., optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.

Abstract: The powdery coating composition of the present invention comprises:(i) 10 to 40% by weight of a solid cross-linking agent prepared by heating polyester and alkoxyaminotriazine, and(ii) 90 to 60% by weight of a base resin.An object of the present invention is to provide a powdery coating composition which will not pose any environmental pollution and has an outstanding property against bubbling.The above object can be fulfilled by using the solid cross-linking agent in combination with a base resin.

Abstract: A powdery coating composition comprising (1) 10 to 40% by weight of a solid cross-linking agent having a softening point of 50.degree. to 120.degree. C. and prepared by heating 40 to 75% by weight of an acrylic resin having free hydroxyl groups and 60 to 25% by weight of an alkoxyaminotriazine at 50.degree. to 120.degree. C., and (2) 90 to 60% by weight of a base resin having a softening point of 60.degree. to 130.degree. C. and an acid value of up to 30 and containing 0.4 to 2.0 moles of free hydroxyl groups per kilogram of the resin, the alkoxyaminotriazine having 0 to 1 non-methylolated NH bond per triazine ring, at least 80% of the methylol groups of the alkoxyaminotriazine having been etherified with an aliphatic or alicyclic alcohol or ethylene glycol monoalkyl ether.