| 摘要 |
The present invention is relative to a heat-curable coating composition forming transparent tintable abrasion-resistant coatings, said compositions comprising, in an aqueous or hydro-organic solvent:
(A) a hydrolysate of an epoxy-functional silane compound containing at least two alkoxy groups,
(B) colloidal silica having an average particle diameter of 1 to 100 µm,
(C) an aluminium chelate compound of formula
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ Al(O-C 1-4 alkyl) n Y 3-n
wherein n is 0, 1 or 2 and Y is a ligand selected from the group consisting of
M-C(=O)-CH 2 -C(=O)-M and
M-C(=O)-CH 2 -C(=O)O-M,
wheren each M is independently a C 1-4 alkyl group, and
(D) a hydrolysate of a silylated poly(tetrahydrofurane) of formula (Ia) or (Ib)
said heat-curable composition not containing any multifunctional cross-linking agents selected from the group consisting of multifunctional carboxylic acids and multifunctional anhydrides. |
