ULTRA-WATER-REPELLENT COATING MATERIAL AND ULTRA-WATER-REPELLENT COATING FILM USING THE SAME

PROBLEM TO BE SOLVED: To obtain an org. coating film excellent in capability to prevent water accretion by forming a coating film comprising a layer having a specified fractal dimensionality and obtd. by dispersing a plurality of fillers and a layer contg. a perfluoropolyoxyalkyl compd., etc. SOLUTI...

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Bibliographische Detailangaben
Hauptverfasser:	ITO YUTAKA, SHOJI SABURO, KAWASHIMA KENICHI, HAMADA TOMOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BLASTING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION DYES FILLING PASTES HEAT EXCHANGE IN GENERAL HEATING INKS LIGHTING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING USE OF MATERIALS THEREFOR WEAPONS WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain an org. coating film excellent in capability to prevent water accretion by forming a coating film comprising a layer having a specified fractal dimensionality and obtd. by dispersing a plurality of fillers and a layer contg. a perfluoropolyoxyalkyl compd., etc. SOLUTION: An org. film-forming material (e.g. an epoxy resin) and a curative are dissolved in a solvent (e.g. a methyl ethyl ketone/butyl Cellosolve acetate mixture) to give soln. A. 1-10wt.% (based on the film-forming material) perfluoropolyoxyalkyl or perfluoropolyoxyalkylene compd. is added dropwise to and mixed into soln. A to give soln. B. 10-150wt.% (based on the film-forming material) filler mixture comprising silica having an average particle size of 1-40nm and silica having an average particle size of 1-4μm is mixed into soln. B to give an ultra-water-repellent coating material. The coating material is applied to a metal plate and thermally cured to form an ultra-water-repellent coating film which comprises a layer having a fractal dimensionality of 2.4 or higher and a surface doubling factor of 2.0 or higher and a layer contg. a perfluoropolyoxyalkyl compd.