Radiation radically and cationically curable composition, and method for preparing a hybrid sol-gel layer on a surface of a substrate using said composition

摘要

Radiation curable composition for preparing a hybrid sol-gel layer on a surface of a substrate, wherein said composition comprises at least one radically radiation curable material; at least one non-reactive organofunctional silane; at least one reactive organofunctional silane; at least one cationic photoinitiator; and at least one radical photoinitiator.;Method for preparing a hybrid sol-gel layer on a surface of a substrate using said composition and hybrid sol-gel layer so prepared.;Substrate comprising at least one surface coated with said hybrid sol-gel layer.

主权项

1. Radiation curable composition for preparing a hybrid sol-gel layer on a surface of a substrate, wherein said composition comprises:
a) at least one radiation curable material capable of being polymerized and/or crosslinked by a radical polymerization reaction upon exposure to a radiation, said radiation curable material comprising at least two radically polymerizable functional groups; b) at least one organofunctional silane of formula (I):
R4-m—Si—(OR′)m  (I) in which:
m is a number from 1 to 3;OR′ is an hydrolysable group; andR is a linear or branched alkyl group having 1 to 20C atoms, a cycloalkyl group having 3 to 20C atoms, an aryl group having 3 to 20C atoms, an alkyl (1 to 20C)-aryl (3 to 20C) group, or an aryl (3 to 20C)-alkyl(1 to 20C) group; c) at least one organofunctional silane of formula (II):
R1(4-m)—Si—(OR′)m  (II) in which:
m is a number from 1 to 3;OR′ is an hydrolysable group; andR1is a hydrocarbyl group comprising at least one radically polymerizable functional group capable of polymerizing with one of the radically polymerizable functional group of the radiation-curable material; d) at least one cationic photoinitiator; and e) at least one radical photoinitiator.