Matting paste for cationic systems

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

400/6545, 400/93

C09D 7/12 (2006.01) C09C 1/30 (2006.01) C09D 7/00 (2006.01) C09D 163/00 (2006.01) G03F 7/038 (2006.01)

Patent

CA 2293290

The use of 10-40 wt.% of diluents such as vinyl ethers (such as CHVE, DVE3) and acrylates (HDDA, TPGDA, DPGDA) alongside the cycloaliphatic epoxy greatly enhances the porous silica effect and allows to manufacture matt and semigloss coatings based on cationic or hybrid (cationic/free radical cure) without detriment of other desired film properties.

Le procédé selon l'invention consiste à utiliser 10 à 40 % en poids de diluants, tels que des éthers de vinyle (comme le CHVE, DVE3) et des acrylates (HDDA, TPGDA, DPGDA) avec une résine époxy cycloaliphatique pour améliorer l'effet de silice poreuse. Ce procédé permet de fabriquer des revêtements mats et semi-brillants à l'aide d'un système cationique ou hybride (séchage cationique/à radical libre) sans nuire aux autres propriétés de films requises.

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