C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
402/21, 400/7205
C07F 7/10 (2006.01) C07F 7/18 (2006.01) C08G 77/26 (2006.01) C08G 77/388 (2006.01) D06M 15/643 (2006.01)
Patent
CA 1334426
The specification describes and claims certain organo- silicon compounds and the preparation thereof. The organo- silicon compounds comprise (A) a silane according to the general formula R1aAbSi(R"NXR')c or (B) a polysiloxane comprising one or more siloxane units according to the general formula (i) R2m(R"NXR')SiO Image , any remaining units of the polysiloxane being at least predominantly according to the general formula (ii) R2q(R"NR4H)rSiO Image . A represents a hydroxyl or a hydrolysable group, R1 represents a monovalent hydrocarbon group having up to 8 carbon atoms, R2 represents a hydroxyl group, a group R1, a group OR1 or a group COR1, R4 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group or an aryl group, R' represents a group R4 or a group X, R" represents a divalent hydrocarbon group which may have nitrogen, oxygen or sulphur present in the carbon chain, X represents a group CO(CHR)nOH in which R represents a hydrogen atom or an alkyl group, a has the value 0, 1, or 2, b has the value 1, 2, or 3, c has the value 1 or 2, the sum of a + b + c = 4, m has the value 0, 1 or 2, p has the value 1 or 2 , q has the value 0, 1, 2 or 3, r has the value 0, 1 or 2, and n has a value in the range 2 to 7. The organosilicon compounds are useful in compositions for treating fabrics. Preferred organopolysiloxanes are of the average general formula Image wherein not less than 80% of the groups R2 are methyl groups, x has an average value from 20 to 1500, y has an average value from 0 to 50 and z has an average value from 0.5 to 50. In preferred materials the ratio of y : z lies in the range 1 : 4 to 4 : 1 and the ratio z : x is less than 5 : 100.
599783
Cray Stephen Edward
Mcvie James
Yianni Paul Anthony
Dow Corning Limited
Gowling Lafleur Henderson Llp
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