Patent ID: 8455603

Claim:
A process for the preparation of amine-amide-functional siloxanes, comprising: reacting SiOH-functional siloxanes of the general formula I with amino-functional silanes of the general formula II in the presence of carboxylic acid anhydrides and optionally in the presence of alcohols, amines, and/or alkanolamines at temperatures of 40-180° C.; wherein the formula I is represented by: M OH a D b T c Q d Formula I; where: M OH =[HO—SiR 1 2 O 1/2 ]; D=[SiR 1 2 O 2/2 ]; T=[SiR 1 O 3/2 ]; Q=[SiO 4/2 ]; a=2-10; b=5-150; c=0-10; d=0-10; and R 1 =identical or different radicals from the group: alkyl radicals having 1-30 carbon atoms, aryl radicals having 6-30 carbon atoms, alkaryl radicals having 7-30 carbon atoms; wherein the formula II is represented by: R 1 e (R 2 O) f SiR 3 Formula II; where: e=0, 1 or 2; f=1, 2 or 3; with the proviso that e+f=3; R 2 =identical or different alkyl radicals having 1-30 carbon atoms or aryl radicals having 6-30 carbon atoms or alkaryl radicals having 7-30 carbon atoms; and R 3 =identical or different organic radicals which carry at least one amino function; wherein one or more trialkylalkoxysilanes of the formula VI or bis(trialkylsilyl)amines of the general formula VII are reacted as further reaction component in the presence of carboxylic acid anhydrides at temperatures of 40-180° C.; wherein the formula VI is represented by: R 9 3 Si(OR 2 ) Formula VI; and wherein the formula VII is represented by: (R 9 3 Si) 2 NR 5 Formula VII; where: R 5 =an alkyl radical having 1-12 carbon atoms, or an aryl radical having 6-12 carbon atoms, or an alkaryl radical having 7-12 carbon atoms, or H; and R 9 =identical or different alkyl radicals having 1 to 30 carbon atoms.