Composition for the Production of a Coating with High Adhesive Strength and Scratch Resistance

A composition configured to produce a coating, comprising:

• (A) a first silane composition chosen from the group consisting of:
• (a) a silane derivative of the formula (I)
• in which:
• R1, R2, R3 and R4, which may be the same or different, are selected from an alkyl, an acyl, an alkyleneacyl, a cycloalkyl, an aryl and an alkylenearyl, which may optionally be substituted,
• (b) a hydrolysis product of the silane derivative of the formula (I);
• (c) a condensation product of the silane derivative of the formula (I);
• and
• (d) mixtures thereof;
• (B) a second silane composition chosen from the groups consisting of:
• (a) a silane derivative of the formula (II)
• R6R73-nSi(OR5)n (II)
• in which:
• R5 is an unsubstituted or substituted alkyl, acyl, alkyleneacyl, cycloalkyl, aryl or alkylenearyl group,
• R6 is an organic radical containing an epoxide group,
• R7 is an unsubstituted or substituted alkyl, cycloalkyl, aryl or alkylenearyl group,
• n is 2 or 3;
• (b) a hydrolysis product of the silane derivative of the formula (II);
• (c) condensation product of the silane derivative of the formula (II);
• and
• (d) mixtures thereof;
• (C) a colloidal inorganic oxide, fluoride or oxyfluoride;
• (D) an epoxide compound having at least two epoxide groups;
• and
• (E) a catalyst system comprising:
• a Lewis acid and a thermolatent Lewis acid-base adduct.