FILLER AND FINISHING COAT MATERIAL CONTAINING SAID FILLER

PURPOSE:To obtain a filler suitable for use in a finishing coat material which has excellent adhesive strength, substrate hiding effect, and storage stability, and gives a coating film having excellent waterproofness and suffering neither peeling nor blistering, by surface treatment of SiO2 or Al2O3...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KONDA KANESHIGE, HAMAGUCHI KIYOSHI, MATANO ARIMESHI, KISHIDA RYOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a filler suitable for use in a finishing coat material which has excellent adhesive strength, substrate hiding effect, and storage stability, and gives a coating film having excellent waterproofness and suffering neither peeling nor blistering, by surface treatment of SiO2 or Al2O3 with a long-chain alkylalkoxysilane. CONSTITUTION:A surface-treated filler is obtained by mixing a solution made by adding a long-chain alkylalkoxysilane of, e.g., formula I or II (wherein n is 10 or greater) in an amount sufficient to provide a concentration of 0.1-0.5wt% to e.g., an 8/2 water/isopropyl alcohol solvent with an SiO2 or Al2O3 filler of a particle diameter of 50-200 mesh in a weight ratio of the filler to the alkoxysilane of 100:1 in, e.g., a Henschel mixer, and drying the mixture. 100pts.wt. emulsion copolymer made from 100pts.wt. of at least two kinds of monomers having vinyl groups in a molecule and 10-20pts.wt. colloidal silica is mixed with 50-4,000pts.wt. this surface-treated filler and 5-40pts.wt. water-dispersible alkyd copolymer of an acid value of 10-30 thus giving a finishing coat material.