Hardcoat composition

Details Hardcoat composition Hardcoat composition

C - Chemistry, Metallurgy

09

D

C09D 163/00 (2006.01) C09D 183/00 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2675405

A hard coating composition including at least the following components (A) to (E): Component (A): A poly(methyl)glycidyl ether compound derived from a chain aliphatic polyol or a chain aliphatic polyether polyol, which may or may not contain a hydroxyl group, Component (B): A silsesquioxane compound containing a cationic polymerizable group, Component (C): A silicate compound, Component (D): A silane compound containing a cationic polymerizable group, or a partial condensed compound thereof, or a mixture thereof, and Component (E): A cationic photopolymerization initiator, wherein the composition includes 5 to 40 parts by weight of the component (A), 60 to 95 parts by weight of the total of the components (B), (C) and (D), and 0.1 to 10 parts by weight of the component (E), each based on 100 parts by weight of the total of the components (A) to (D).

L'invention concerne une composition de revêtement dur comprenant au moins les composants suivants (A) à (E) : composant (A) : composé de poly(méthyl)glycidyl-éther dérivé d'un polyol aliphatique à chaîne ou un polyol de polyéther aliphatique à chaîne, qui peut ou non contenir un groupe hydroxyle, composant (B) : composé silsesquioxane contenant un groupe cationique polymérisable, composant (C) : composé de silicate, composant (D) : composé de silane contenant un groupe cationique polymérisable ou un composé partiel condensé de celui-ci ou un mélange de ceux-ci, et composant (E) : initiateur cationique de photopolymérisation, la composition comprenant 5 à 40 parties en poids du composant (A), 60 à 95 parties en poids du total des composants (B), (C) et (D), et 0,1 à 10 parties en poids du composant (E), chacune étant basée sur 100 parties en poids du total des composants (A) à (D).

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