Amino-mercapto functional organopolysiloxanes
View Patent ↗An organopolysiloxane containing both an amino functional organic group and a mercapto functional organic group is disclosed. A method of making such amino-mercapto functional organopolysiloxanes is by reacting (A) a silanol-functional polysiloxane, (B) an amino functional alkoxy silane, and (C) a mercapto functional alkoxy silane, via a condensation reaction. The amino-mercapto functional organopolysiloxanes products are useful in textile and fabric treatments.
1. An amino-mercapto functional organopolysiloxane comprising siloxy units having the average formula;
[R 2 SiO] a [RR N SiO] b [RR S SiO] c
where; a is 1-200, b is 1-50, c is 1-50,
R is independently a monovalent organic group,
R N is a monovalent amino functional organic group, and
R S is a monovalent mercapto functional organic group,
wherein the amino-mercapto functional organopolysiloxane is terminated with a silanol group or an alkoxy group containing 1 -30 carbon atoms.
2. The organopolysiloxane of claim 1 wherein the amino-mercapto functional organopolysiloxane has the average formula;
where a is 1-200, b is 1-50, c is 1-50,
R′ is H, or an alkyl group having 1 to 340 carbon atoms.
3. The organopolysiloxane of claim 2 where R′ is an alkyl group having 1 to 20 carbon atoms.
4. A textile treatment comprising the organopolysiloxane of claim 1 .
5. A method of treating textiles comprising applying the organopolysiloxane of claim 1 to a textile.
6. A nonwoven fiber treatment comprising the organopolysiloxane of claim 1 .
7. A method of treating nonwoven fibers applying the organopolysiloxane of claim 1 to a nonwoven fiber.
8. The method of claim 7 wherein the nonwoven fiber is paper.
9. A laundry product composition comprising the organopolysiloxane claim 1 .
10. A dry cleaning composition comprising the organopolysiloxane of claim 1 .
11. A method for preparing fluorosilicone compounds which comprises reacting the organopolysiloxane of claim 1 .