Method for the preparation of aminoalkylsiloxane copolymers

Claim 1

A PROCESS FOR THE PREPARATION OF POLYAMINOALKYLSUBSTITUTED ORGANOSILOXANE COPOLYMERS WHICH COMPRISES REACTING (1) AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) SILANES OF THE FORMULA R"X(ZNR'')SI(OR)S-X9 WHERE: X IS AN INTEGER OF FROM 0 TO 2 INCLUSIVE, EACH R IS AN ALKYL RADICAL OF LESS THAN 4 CARBON ATOMS, R'' IS AN ALIPHATIC HYDROCARBON RADICAL CONTAINING A NUMBER OF CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF 1, 3, 4 AND 5 CARBON ATOMS AND HAVING A VALENCE OF N+1, WHERE N IS AN INTEGER OF FROM 1 TO 3 INCLUSIVE, Z IS A MONOVALENT RADICAL ATTACHED TO R'' BY A CARBON-NITROGEN BOND AND IS COMPOSED CARBON, NITROGEN AND HYDROGEN ATOMS AND CONTAINS AT LEAST 2 AMINE GROUPS IN WHICH THE NITROGEN ATOMS ARE ATTACHED ONLY TO SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, AND ALIPHATIC HYDROCARBON, CYCLOALIPHATIC HYDROCARBON, AND AROMATIC HYDROCARBON RADICALS, THE NITROGEN IN Z BEING PRESENT ONLY IN SAID AMINE GROUPS, THE RATIO OF CARBON ATOMS TO NITROGEN ATOMS IN THE SUBSTITUTENT -R''ZN BEING LESS THAN 6:1, AND EACH R" IS A MONOVALENT HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION, AND (B) PARTIAL HYDROLYZATES FORMED BY MIXING (A) WITH UP TO 60 PERCENT OF ITS THEORETICAL EQUIVALENT OF WATER, WITH (2) AT LEAST ONE ORGANOSILOXANE OF THE AVERAGE GENERAL FORMULA R"''(Y)-SI(-(OH)M)-O(4-M-Y/2) WHERE EACH R''" IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGENATED MONOVALENT HYDROCARBON RADICALS, M HAS A POSITIVE AVERAGE VALUE UP TO AND INCLUDING 2, Y HAS AN AVERAGE VALUE OF FROM 1 TO 2.5 INCLUSIVE, AND THE SUM OF Y+M HAS AN AVERAGE VALUE UP TO AND INCLUDING K3, THE VALUE OF M BEING SUCH THAT THE ORGANOSILOXANE (2) CONTAINS AT LEAST 1.0% BY WEIGHT OF HYDROXYL GROUPS, BY CONTACTING (1) AND (2) IN LIQUID PHASE IN AN AMOUNT SUCH THAT THERE IS AT LEAST 10 PERCENT BY WEIGHT OF (1) BASED ON THE COMBINDED WEIGHT OF (1) AND (2).