KR970001503A - Water repellent surface treatment with integrated primer - Google Patents

Abstract

Compositions that form a water repellent surface on substrates such as glass, plastic, metal, organic polymer coated substrates or inorganic coated substrates are of the general formula R _m R ' _n SiX _4-mn where R is a perfluoroalkylalkyl radical , R 'is a vinyl or alkyl radical, the sum of m and n is less than 4, X is a halogen, alkoxy or acyloxy radical) and a compound selected from the group consisting of silanes or siloxanes that can be hydrolyzed with silica gel. It contains a mixture of. The water resistance measured by the contact angle of water droplets on the surface of the substrate treated with the above compound is more than that of the surface treated with the same perfluoroalkylalkyl silane without the use of silanes or siloxanes which can be hydrolyzed with silica gel. It is durable.

Description

Water repellent surface treatment with integrated primer

Since this is an open matter, no full text was included.

Claims (20)

Formula R _m R ' _n SiX _{4-mn wherein} R is a perfluoroalkylalkyl radical, R' is a vinyl or alkyl radical, m is 1, 2 or 3, n is 0, 1 or 2 A sum of m and n is less than 4 and X is selected from the group consisting of halogen and acyloxy radicals) perfluoroalkylalkylsilanes; And a mixture of compounds selected from the group consisting of silanes and siloxanes that can be hydrolyzed with silica gel. The composition of claim 1, wherein the perfluoroalkyl portion of the perfluoroalkylalkyl radical is selected from CF ₃ -C ₃₀ F ₆₁ . The composition of claim 1 wherein R 'is selected from the group consisting of methyl, ethyl, vinyl and propyl. The composition of claim 1 wherein X is selected from the group consisting of chloro, bromo, iodo and acetoxy. The composition of claim 1 wherein the perfluoroalkylalkylsilane is selected from the group consisting of perfluoroalkylethyltrichlorosilane, perfluoroalkylethyltriacetoxysilane, and perfluoroalkylethyldichloro (methyl) silane. The composition of claim 1 wherein the silane capable of hydrolyzing with silica gel has the general formula SiX ₄ , wherein X is selected from the group consisting of halogen, alkoxy and acyloxy radicals. Formula R _m R ' _n SiX _{4-mn wherein} R is a perfluoroalkylalkyl radical, R' is a vinyl or alkyl radical, m is 1, 2 or 3, n is 0, 1 or 2 And a sum of m and n is less than 4, X is selected from the group consisting of halogen, alkoxy or acyloxy radicals), and a perfluoroalkylalkylsilane selected from the group consisting of: A composition for forming a water repellent surface on a substrate, comprising a mixture of silanes of _{4 wherein} X is halogen. 8. The composition of claim 7, wherein the silane capable of hydrolysis with silica gel is silicon tetrachloride. The method according to claim 1, wherein the siloxane capable of hydrolyzing with silica gel is a general formula Si _y O _z X _4y-2x (wherein X is selected from the group of halogen, alkoxy and acyloxy radicals, y is at least 2, z is at least 1, and 4y-2z is at least 0). Formula R _m R ' _n SiX _{4-mn wherein} R is a perfluoroalkylalkyl radical, R' is a vinyl or alkyl radical, m is 1, 2 or 3, n is 0, 1 or 2 A sum of m and n is less than 4 and X is selected from the group consisting of halogen, alkoxy or acyloxy radicals) perfluoroalkylalkylsilanes; Compounds selected from the group consisting of silanes and siloxanes capable of hydrolysis with silica gel; And general formula C _m F _{2m + 1} CH = CH | A composition for forming a water repellent surface on a substrate, comprising a mixture of _two (wherein m is 1-30) fluorinated olefin telomer. The mixture of claim 1 wherein said mixture of silanes hydrolyzable to perfluoroalkylalkylsilanes and silica gel is prepared with alkanes, inorganic alcohols, acetone, toluene, naphtha, halogenated hydrocarbons, perfluorinated organic solvents, and mixtures thereof. A composition present in a solvent selected from the group consisting of. The composition of claim 11, wherein the perfluoroalkyl portion of the perfluoroalkylalkyl radical is selected from CF ₃ to C ₃₀ F ₆₁ . 12. The composition of claim 11, wherein R 'is selected from the group consisting of methyl, ethyl, vinyl and propyl. 12. The composition of claim 11 wherein X is selected from the group consisting of chloro, bromo, iodo and acetoxy. The composition of claim 11 wherein said solvent is selected from the group consisting of hexane, heptane, inorganic alcohols, acetone, toluene, naphtha, trichlorotrifluoroethane, methylene chloride, perfluorocarbon and mixtures thereof. The composition of claim 11, wherein said silane capable of hydrolysis with silica gel has the general formula SiX ₄ , wherein X is selected from the group consisting of halogen, alkoxy and acyloxy radicals. 17. The composition of claim 16, wherein said silane capable of hydrolysis with silica gel is silicon tetrachloride. The composition of claim 11, further comprising a fluorinated olefin telomer of general formula C _m F _{2m + 1} CH═CH ₂ , wherein m is 1-30. The composition of claim 1 wherein the mixture consists essentially of a compound selected from the group consisting of perfluoroalkylalkylsilanes and silanes and siloxanes. The composition of claim 1 wherein the mixture consists essentially of perfluoroalkylalkylsilanes in a solvent and a compound selected from the group consisting of silanes and siloxanes. ※ Note: The disclosure is based on the initial application.