Patent ID: 11938696
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: nan (nan)
Classification: CPC nan | IPC B  G

Claim 6:
7. The method according to claim 1, wherein the at least one hard coating precursor material comprises
A) a) at least one silane derivative of the formula (III) R1R23-nSi(OR3)n, wherein R1 comprises an alkyl group, a cyclo alkyl group, an acyl group, an aryl group or an hetero aryl group, each of which may be substituted, R2 is an organic rest comprising an epoxide group, R=3 comprises an alkyl group, a cyclo alkyl group, an aryl group or a hetero aryl group, each of which may be substituted, n=2 or 3, and/or
b) at least one hydrolysis product of the silane derivative of the formula (III), and/or
c) at least one condensation product of the silane derivative of the formula (III), and/or
d) any mixture of components a) to c);

B) at least one colloidal inorganic oxide, hydroxide, oxide hydrate, fluoride and/or oxyfluoride;
C) at least one epoxy component comprising at least two epoxy groups; and
D) at least one catalyst system comprising at least one Lewis acid and at least one thermolatent Lewis base-adduct.