C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/18 (2006.01) C03C 17/30 (2006.01) C09D 4/00 (2006.01) C09D 183/08 (2006.01)
Patent
CA 2064616
This invention relates to a composition for preparing a transparent coating capable of imparting hydrophobic, non-stick, and water repellency properties to the surface of inorganic articles, which surface contains hydroxyl groups, said composition being characterized by the fact that it consists essentially of a mixture of two components: (a) a silane having the formula R n SiX4-n wherein each R is chosen independently from among the methyl, ethyl, and propyl radicals, unsubstituted or partially or totally substituted by fluorine atoms; X is a hydrolyzable group chosen from among the methoxy, ethoxy, and chloro groups; and n = 1 or 2; and (b) a mixture of a lower alkanol and water; with the conditions that (i) the silane component is comprised of at least 20 mole percent of a silane having the above formula where n = 2; and (ii) the water is acidified at least in the cases where X is a methoxy or ethoxy group.
Corning Incorporated
Gowling Lafleur Henderson Llp
LandOfFree
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