D - Textiles – Paper – 06 – M
Patent
D - Textiles, Paper
06
M
402/21, 8/93.21
D06M 15/643 (2006.01) A61K 8/893 (2006.01)
Patent
CA 1337447
The specification describes and claims a method of treating fibrous material which comprises applying to the fibrous material a composition comprising an organosilicon compound having a group =NCO(CHR)nOH connected with a silicon atom of the organosilicon compound. The organosilicon compound consists of or comprises (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')pSiO , any remaining units of the Image polysiloxane being at least predominantly according to the general formula (ii) R2q(R"NR4H)rSiO . A represents a Image 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, a hydroxyl group, a hydrocarbon group or a hydroxyl substituted hydrocarbon 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. Fabrics treated according to the method have a satisfactory handle and improved non-yellowing properties.
599782
Cray Stephen Edward
Mcvie James
Yianni Paul Antony
Dow Corning Limited
Gowling Lafleur Henderson Llp
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