Patent ID: 6881357

Claim:
A spray-coated layer composition comprising a metal compound of formula (1) below, fluoroalkylsilane of formula (2) below, a mercapto compound of formula (3) or (4) below, and a polar solvent: where M is selected from the group consisting of Si, Ti, Sn, and Zr; R 1 is a C 1 -C 20 alkyl group or -M(R 14 R 15 R 16 ) where R 14 , R 15 , and R 16 are, independently, a C 1 -C 20 alkyl group, a C 1 -C 20 alkoxy group, or a C 6 -C 20 aryl group; R 2 is a C 1 -C 20 alkyl group; at least one of R 3 and R 3 ′ is a C 1 -C 20 alkoxy group, and the remaining group is a C 1 -C 20 alkyl group, a C 1 -C 20 alkoxy group, a C 2 -C 20 alkylene group, or a C 6 -C 20 aryl group; at least one of R 4 and R 5 is a C 1 -C 20 alkoxy group, and the remaining group is a C 1 -C 20 alkyl group, a C 2 -C 20 alkylene group, or a C 6 -C 20 aryl group; and n is an integer from 0 to 20, where R 5 ′ is a fluorinated C 1 -C 20 alkyl group; R 6 and R 7 are, independently, a C 1 -C 20 alkoxy group or a fluorinated C 1 -C 20 alkyl group; and R 8 is a C 1 -C 20 alkyl group, R 9 SH (3) where R 9 is a C 1 -C 20 alkyl group, a C 1 -C 20 alkyl group with a hydroxy group, a C 1 -C 20 hydroxyalkyl group with a hydroxy substituent, or —(CH 2 ) k COOH, where k is an integer from 1 to 10, and where R 10 is a C 1 -C 20 alkyl group; R 11 and R 12 are, independently, a C 1 -C 20 alkyl group, a C 1 -C 20 alkoxy group, or a C 1 -C 20 alkyl group with mercapto group; and R 13 is a C 1 -C 20 alkyl group with a mercapto (—SH) group, wherein the fluoroalkylsilane of said formula (2) is at least one selected from the group consisting of heptadecafluorodecyltriethoxysilane, pentadecafluorohexytrimethoxysilane, heptadecafluorodecyltrimethoxysilane, heptadecafluorodecyltriisopropoxysilane, heptadecafluorodecyltributoxysilane, di-(heptadecafluorodecyl)diethoxysilane, and tris-(heptadecafluorodecyl)ethoxysilane, and the fluoroalkylsilane of said formula (2) is contained in an amount of 1-15 parts by weight based on 100 parts by weight of the metal compound of formula (1).