Scratch-resistant coating

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 163/00 (2006.01) C08J 7/04 (2006.01) C09D 5/00 (2006.01) C09D 183/06 (2006.01) C09D 183/14 (2006.01)

Patent

CA 2406175

The invention relates to scratch-resistant coatings comprising a primer layer (G) which adheres to a substrate that is to be coated and a scratch-resistant layer (K) which adheres to the primer layer (G). Said primer layer (G) contains a cured epoxy resin that can be obtained from curing agents and multi- functional epoxy compounds and the scratch-resistant layer (K) can be obtained from hydrolysable silanes containing epoxide groups. The inventive coatings are particularly stable vis-à-vis water corrosion. The invention also relates to products coated with said coatings.

L'invention concerne des revêtements résistant aux rayures, qui comprennent une couche de fond (G) qui adhère à un substrat devant être revêtu et une couche résistant aux rayures (K) qui adhère à la couche de fond (G). Ladite couche de fond (G) contient une résine époxy durcie qui peut être obtenue à partir d'un durcisseur et de composés à plusieurs fonctions époxy, et la couche résistant aux rayures (K) peut être obtenue à partir de silanes hydrolysables contenant des groupes époxyde. Les revêtements selon l'invention sont particulièrement stables vis-à-vis de la corrosion par l'eau. La présente invention concerne en outre des produits pourvus de ces revêtements.

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