| abstract |
The invention relates to a novel silane coupling agent according to Formula (1) below, wherein Y = a chain composed of aliphatic, cyclic or aromatic groups, furthermore comprising an additional reactive group chosen from the series of a secondary amine, a amine linked to a secondary or tertiary carbon atom or a hydroxyl group linked to a primary, secondary or tertiary carbon atom. R, R'= CH3 or C2H5, n = 3-15, q = 1, 2 or 3 and p = 3-q. The invention also relates to the use of the coupling agent according to the invention in a composite, for example in a dental application. The invention further relates to a process for the preparation of a silane coupling agent by reacting, at a temperature lower than 150° C, a carbonyl bislactamate with a silane compound containing at least one amino group. The invention moreover relates to nano particles, in particular nano silicate particles, obtained by hydrolysis of the coupling agent according to the above formula in the presence or absence of tetraethoxysilane and to the use of such particles in a coating. |