Patent ID: 8883296

Claim:
A coating structure formed on the surface of a product, comprising: an aluminum oxide (Al 2 O 3 ) layer formed on the surface of the product; a silicon dioxide (SiO 2 ) layer formed on the surface of the aluminum oxide (Al 2 O 3 ) layer; and a coating composition layer formed on the silicon dioxide (SiO 2 ) layer, wherein the coating composition comprises a silane oligomer having an R 1 group represented by Formula 1 of [R a O—(CH 2 CH 2 O) p —R b —] wherein R a is selected from the group consisting of hydrogen and an alkyl group having 1 to 3 carbon atoms; R b is selected from the group consisting of an alkyl group having 5 to 20 carbon atoms, an alkenyl group having 5 to 20 carbon atoms, an alkynyl group having 5 to 20 carbon atoms, an aryl group having 5 to 20 carbon atoms, an arylalkyl group having 6 to 20 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms and a heteroalkyl group having 5 to 20 carbon atoms; and p is an integer of 1 to 12; and an R 2 group represented by Formula 2 of (R c ) q wherein R c is a cycloalkyl group having 3 to 20 carbon atoms, and q is an integer of 1 to 3.