Patent ID: 8664370

Claim:
Process for producing silicon-containing azo-dicarbamides of the general formula I (R 1 ) 3-a (R 2 ) a Si—R I —NH—C(O)—N═N—C(O)—NH—R I —Si(R 1 ) 3-a (R 2 ) a (I), via reaction of azobiscarboxy compounds of the general formula II R 3 —X 1 —C(O)—N═N—C(O)—X 1 —R 4 (II) with aminosilanes of the general formula III (R 1 ) 3-a (R 2 ) a Si—R I —NH 2 (III), where a is mutually independently 1, 2 or 3, R 1 are mutually independently substituted or unsubstituted Cl-C18-alkyl groups, C5-C18-cycloalkyl groups, or C6-C18-aryl groups, R 2 are mutually independently an —OH, a substituted or unsubstituted Cl-C18-alkoxy group or a C5-C18-cycloalkoxy group, R I is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C 1 -C 30 -hydrocarbon group, optionally substituted with F—, Cl—, Br—, I—, —CN or HS—, X 1 are mutually independently O, NH or N-A 1 , where A 1 is C1-C12-alkyl group or aryl group and R 3 and R 4 are mutually independently an H, a C1-C18-alkyl group, a benzyl group (—CH 2 —C 6 H 5 ) or an alkyl polyether group of the formula (CH 2 —CH 2 —O) n —R 5 or (CH(CH 3 )—CH 2 —O) n —R 5 , where the average of n is from 1 to 18 and R 5 is mutually independently a branched or unbranched, saturated or unsaturated monovalent C1-C32-hydrocarbon chain.