ARTICLE HAVING WATER- AND OIL-REPELLENT LAYER FORMED THEREON, AND METHOD FOR MANUFACTURING SAME

• Main Authors: KOBAYASHI, Daisuke, SUWA, Kumiko, HIRAKOSO, Hideyuki, SUEHARA, Michinori, ISHIZEKI, Kenji, TOKUNAGA, Mio, ZHOU, Lilin
• Format: Patent
• Language: English; French; German
• Published: 29.04.2020
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

To provide a water/oil repellent layer-provided article of which the water/oil repellent layer is excellent in abrasion resistance, and a method for producing it.A water/oil repellent layer-provided article 10, comprising a substrate 12, a water/oil repellent layer 16 comprising a hydrolyzed condensate of a fluorinated compound having a hydrolyzable silyl group, and a silicon oxide layer 14 containing alkali metal atoms, present between the substrate 12 and the water/oil repellent layer 16, wherein in the silicon oxide layer 14, the average concentration of the alkali metal atoms in a region with a depth from the surface in contact with the water/oil repellent layer 16 of at least 0.1 nm and at most 0.3 nm, is at least 2.0×1019atoms/cm3.