Patent GB-1282471-A (GB)
Title: Improvements in aminoalkyl silicone for use in polishes
IPC: C07F7/18
Filed: 1969-07-16
Abstract: 1282471 Silicone compositions GENERAL ELECTRIC CO 16 July 1969 [17 July 1968] 35864/69 Heading C3T An organopolysiloxane copolymer composition comprises: (A) The partial hydrolysis and condensation product of (1) a liquid silanol chain - stopped polydiorganosiloxane of the formula (2) an aminoalkylsilane of the formula and (3) an aminoalkoxyalkylsilane or an aminoalkoxyalkenylsilane of the formula in combination with: (B) The partial hydrolysis and condensation product of (4) a fluid silanol chain - stopped polydiorganosiloxane of the formula and (5) an aminoalkoxyalkylsilane or an aminoalkoxyalkenylsilane having the same formula as that in (3), wherein R denotes monovalent hydrocarbon radicals free of aliphatic unsaturation, at least 90% of which are methyl radicals, R<SP>1</SP> denotes C 1-4  alkyl, R<SP>11</SP> denotes C 2-6  alkylene or C 3-8  alkenylene in which the double bond is adjacent to the silicon atom, R<SP>111</SP> denotes hydrogen, C 1-8  alkyl or C 5-7  cycloalkyl, n has a value of from 2 to 20 inclusive, n<SP>1</SP> has a value of from 300 to 1000 inclusive, a is 3, 4, 5 or 6, b is 2, 3, 4 or 5, said copolymer defined in part (A) having a viscosity of from 5 to 1000 cs. at 25‹ C. and containing from 1 to 15% by weight -OR<SP>1</SP> radicals based on the weight of said copolymer, the proportions of said polydiorganosiloxane (1), said aminoalkylsilane (2), and said aminoalkoxyalkylsilane (3) or said aminoalkoxyalkenylsilane (3) being selected to provide a total of from 0À04 to 1À0 siloxane units derived from said aminoalkylsilane (2) and said aminoalkoxyalkylsilane (3) or said aminoalkoxyalkenylsilane (3) per siloxane unit derived from said polydiorganosiloxane (1), and from 0À25 to 9 siloxane units derived from said aminoalkylsilane (2) per siloxane unit derived from said aminoalkoxyalkylsilane (3) or said aminoalkoxyalkenylsilane (3), the proportions of said polydiorganosiloxane (4) and said aminoalkoxyalkylsilane (5) or said aminoalkoxyalkenylsilane (5), being selected to provide a total of from 0À002 to 0À013 siloxane units derived from said aminoalkoxyalkylsilane (5) or said aminoalkoxyalkenylsilane (5) per siloxane unit derived from said polydiorganosiloxane (4), said composition containing from 5 to 95% by weight based upon the total weight of the copolymer defined in part (B). The above composition may be modified by replacing up to 10% by weight of the aminoalkylsilane (2) with a difunctional silane of the formula or up to 10% by weight of the aminoalkoxyalkylsilane (3) or the aminoalkoxyalkenylsilane (3) with a difunctional silane of the formula The above composition may be further modified in that from 10 to 50% of the amino groups of the said aminoalkylsilane (2) and said aminoalkoxyalkylsilane (3) or said aminoalkoxyalkenylsilane (3) of part (A) are converted to amine salt groups with aliphatic carboxylic acids. Polish emulsions further comprise the above compositions modified to contain partial aliphatic carboxylic acid amine salt groups, water, a hydrocarbon solvent and an emulsifying agent. Preferred polish compositions comprise 0À1 to 4À0 weight per cent of a partial salt of a part (A) polysiloxane, 0À1 to 3À0 weight per cent of a part (B) polysiloxane, 10 to 60 weight per cent of solvent, 0À5 to 5À0 weight per cent of emulsifying agents, 20 to 85 weight per cent of water, 0 to 15 weight per cent of abrasive, 0 to 2À0 weight per cent of thickeners and 0 to 6À0 weight per cent of silicone fluid. Uses.-As car polishes.