Abrasion resistant coating compositions based on silane hydrolysates and aluminium compounds and corresponding abrasion and shock resistant coated articles

摘要

Abrasion resistant coating compositions based on silane hydrolyeates and aluminium compounds and corresponding abrasion and shock resistant coated articles The invention relates to a hardenable composition for an abrasion resistant coating comprising the following constituents: A-an epoxytrialkoxysilane hydrolysate, B-a hydrolysate of a silane having formula (I) where T¹ and T² each react to give a OH group on hydrolysis and Z¹ and Z² are unreactive organic groups, C-collcidal silica, D-a specific aluminium catalyst, E-optionally, an organic solvent with a boiling point between 70° C. and 140° C., and to corresponding coated articles, which can have nor-reflective treatments.