HYDROPHILIC OIL REPELLENT COATING FILM AND ANTIFOULING COATED BODY

• Main Authors: KONAKA YOSUKE, KUBO TSUGIO
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2018
• Subjects: 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; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a hydrophilic oil repellent coating film capable of achieving hydrophilic oil repellency and achieving self-cleaning property which makes removal easy even when stain is adhered.SOLUTION: A hydrophilic oil repellent coating film is at least constituted by hydrophilic nanoparticles having average particle diameter of 100 nm or less, has convexoconcave with arithmetic average roughness Ra in a range of 2.5 to 100 nm on a surface of the hydrophilic oil repellent coating film, and further contains at least one of a fluorine compound and a silicon compound as an oil repellent component, and has water contact angle of less than 15°, and oil contact angle of over 15°.SELECTED DRAWING: None 【課題】 親水撥油性を実現することが可能であるとともに、汚れが付着しても除去しやすくなるセルフクリーニング性を実現することが可能な親水撥油性被覆膜を提供する。【解決手段】 親水撥油性被覆膜は、１００ｎｍ以下の平均粒径を有する親水性のナノ粒子により少なくとも構成され、当該親水撥油性被覆膜の表面に算術平均粗さＲａが２．５〜１００ｎｍの範囲内の凹凸を有するとともに、さらに、撥油性成分として、フッ素化合物およびケイ素化合物の少なくとも一方を含有し、水接触角が１５°未満であり、かつ、油接触角が１５°超である。【選択図】 なし