| 摘要 |
An optical component having an anti-fog coating obtainable by covalent attachment of a silane RoXmSiAn to the surface of the optical component, wherein m=1-3, n=1-2 and o=0-1, with the proviso that m+n+o=4; X is halogen or C1-4-alkoxy, and for m=2 or 3 the individual radicals X may be identical or different, R is C1-4-alkyl, A has the structure -A1-A2, in which -A1-is a hydrophobic group bonded to Si, and -A2 represents a terminal hydrophilic group bonded to A1, -A1-is selected from -arylene-; -C1-6-alkylene-arylene-; -arylene-C1-6-alkylene-; -C1-6-alkylene-arylene-C1-6-alkylene-; -poly(C3-6-alkoxylene)-, fluorinated or perfluormated -alkylene-, fluorinated or perfluormated -poly(C2-6-alkoxylene)-, or a combination thereof, and -A2 is poly(meth)acrylate, and for n=2 the individual radicals A may be identical or different, and where -A2 comprises monomer units selected from CH2=C(CH3)COOC1-4-alkyl, CH2=C(H)COOC1-4-alkyl hydroxyethylene methacrylate, 2-acrylamido-2-methylpropanesulphonic acid, trimethylolpropane triacrylate and pentaerythritol tetraacrylate or mixtures thereof.
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