| abstract |
Stable, low-chloride solutions of hydrosalts of organic acids with cationic N substituted aminopolysiloxanes of the formula (I) in which groups R independently of each other are each benzyl or vinylbenzyl, groups Y are identical or different and Y is an alkoxy or hydroxyl group or 0 1/2 , A is an organic carboxylic acid and 0≦a<2, 0≦b≦1 c≧0.125, 0.125≦(a+b)≦3 and x≧2, which are present substantially in the form of T structural units in a lower alcohol. Preparation takes place from the corresponding hydrochloride salts of the cationic N-substituted aminopolysiloxanes by reaction with NaOH or Na alkoxide or with the sodium salt of the organic carboxylic acid A, precipitation and removal of the NaCl. The solutions are used as adhesion promoters between organic and inorganic surfaces, in connection with the reinforcement of organic polymers with inorganic fillers, glass fibers or metallic particles, or in connection with the coating of Inorganic surfaces with organic polymers, where aminopolysiloxane coat thicknesses of up to 800 nm are achieved. |