Patent ID: 6535680
Filing Date: 2003-03-18
Classification: B29C,B29D,B29L,C09D,G02B

Abstract:
A process for producing an article having a predetermined surface shape, which comprises disposing a sol-gel material between a substrate and a mold in the form of a film so as to make the sol-gel material closely contact with the substrate and the mold, and heating the film to form a gelled film having a surface shape which is the inversion of the surface shape of the mold on the surface of the substrate, said sol-gel material containing (A) a silane compound represented by the following formula (1) and (B) a silane compound represented by the following formula (2), and (C) a silane compound represented by the following formula (3):R12SiX2â€ƒâ€ƒ(1) wherein R1 is an alkyl group and X is an alkoxyl group or halogen atom,R2SiY3â€ƒâ€ƒ(2) wherein R2 is an aryl group or substituted aryl group and Y is an alkoxyl group or halogen atom,R3SiZ3â€ƒâ€ƒ(3) wherein R3 is a fluorine-containing alkyl group and Z is an alkoxyl group or halogen atom, in an amount of 30 to 60 mole %, 10 to 50 mole % and 5 to 60 mole % based on the total number of moles of the components (A), (B) and (C), respectively.