Article having abrasion resistant surface formed from the reaction product of a silane and a metal ester

Claim 2

An insoluble, abrasion-resistant, film consisting of the reaction product of (a) a reactive silane of the formula R n 1 --Si--R 4 -n-hu 2, wherein R 1 is selected from the group consisting of CH 2 ═CH--, an alkyl group of from 2 to 10 carbon atoms containing an epoxy group, an alkyl ether epoxide group containing up to 10 carbon atoms, and ##STR3## wherein R 3 is an alkylene group having from 1 to 8 carbon atoms, and R 4 is hydrogen or an alkyl radical having from 1 to 8 carbon atoms; R 2 is an alkoxy or acetoxy group, n is a positive integer of 1 to 3; and (b) a metal ester of the formula M(OR) x , wherein M is selected from the group consisting of titanium, aluminum, and zirconium; R is an alkyl radical having from 1 to 8 carbon atoms, and x is equal to the number of valence bonds of M.

Claim 3

An article comprising a surface coating of the film of claim 1, firmly bonded to a substrate, wherein said substrate is selected from the group consisting of organic polymeric materials and metals.

Claim 4

An article in accordance with claim 2, wherein said metal ester is selected from the group consisting of Ti(OR) 4 and Al(OR) 3 and said silane is selected from the group consisting of gammaglycidoxypropyltrimethoxysilane and gamma-methacryloxypropyltrimethoxysilane.

Claim 5

An article in accordance with claim 3 wherein said metal ester is Ti(OR) 4 and said silane is gamma-glycidoxypropyltrimethoxysilane.

Claim 6

An article in accordance with claim 3 wherein said metal ester comprises Al(OR) 3 and said silane is gammaglycidoxypropyltrimethoxysilane.

Claim 7

An article in accordance with claim 2, wherein said substrate comprises an ophthalmic lens.

Claim 8

An article in accordance with claim 6, wherein said lens comprises polydiallylglycol carbonate.

Claim 9

A film in accordance with claim 1 wherein said silane is selected from the group Ti(OR) 4 and Al(OR) 3 and said silane is selected from the group gamma-glycidoxypropyltrimethoxysilane and gamma-methacryloxypropyltrimethoxysilane.

Claim 10

A film in accordance with claim 8 wherein said metal ester is Ti(OR) 4 and said silane is gamma-glycidoxypropyltrimethoxysilane.

Claim 11

A film in accordance with claim 9 wherein said metal ester is tetraisopropyl titanate.

Claim 12

A film in accordance with claim 9 wherein the mole ratio of said metal ester to said silane is from about 1:0.5 to about 1:7.

Claim 13

An article in accordance with claim 2 wherein said substrate is an organic polymeric material.

Claim 14

An article in accordance with claim 12 wherein said organic polymeric material is selected from the group consisting of polydiallylglycol carbonate, cellulose acetate butyrate, polycarbonate, polymethylmethacrylate and polyphenylethers.

Claim 15

An article in accordance with claim 4 wherein said metal ester is tetraisopropyl titanate.

Claim 16

An article in accordance with claim 4 wherein the mole ratio of said metal ester to said silane is from about 1:0.5 to 1:7.

Claim 17

An article comprising (i) a substrate selected from the group consisting of organic polymeric materials and metals, and, (ii) a surface coating of an insoluble, abrasion-resistant film comprising the reaction product of (a) a reactive silane of the formula R n 1--Si--R 4 -n 2 , wherein R 1 is selected from the group consisting of CH 2 ═CH--, an alkyl group of from 2 to 10 carbon atoms containing an epoxy group, an alkyl ether epoxide group containing up to 10 carbon atoms, and ##STR4## wherein R 3 is an alkylene group having from 1 to 8 carbon atoms, and R 4 is hydrogen or an alkyl radical having from 1 to 8 carbon atoms; R 2 is an alkoxy or acetoxy group; n is a positive integer of 1 to 3; and (b) a metal ester of the formula M(OR) x , wherein M is selected from the group consisting of titanium, aluminum, and zirconium; R is an alkyl radical having from 1 to 8 carbon atoms, and x is equal to the number of valence bonds of M.

Claim 18

An article comprising (i) a substrate selected from the group consisting of organic polymeric materials and metals, and, (ii) a surface coating of an insoluble, abrasion-resistant film comprising the reaction product of (a) a reactive silane of the formula R n 1--Si--R 4 -n 2 , wherein R 1 is selected from the group consisting of CH 2 ═CH--, an alkyl group of from 2 to 10 carbon atoms containing an epoxy group, an alkyl ether epoxide group containing up to 10 carbon atoms, and ##STR4## wherein R 3 is an alkylene group having from 1 to 8 carbon atoms, and R 4 is hydrogen or an alkyl radical having from 1 to 8 carbon atoms; R 2 is an alkoxy or acetoxy group; n is a positive integer of 1 to 3; and (b) a metal ester of the formula M(OR) x , wherein M is selected from the group consisting of titanium, aluminum, and zirconium; R is an alkyl radical having from 1 to 8 carbon atoms, and x is equal to the number of valence bonds of M.

Claim 19

An article in accordance with claim 16 wherein said substrate is an organic polymeric material.

Claim 20

An article in accordance with claim 17 wherein said organic polymeric material is selected from the group consisting of polydiallylglycol carbonate, cellulose acetate butyrate, polycarbonate, polymethylmethacrylate, and polyphenyl ethers.