COMPOSITION AND METHOD FOR TREATING TEXTILES
A curable composition useful for treating textiles to impart thereto upon the curing of one or more textile use-enhancing characteristics includes a first macromonomer (i) which is a polysiloxane possessing two or more terminal functional groups selected from the group consisting of hydroxyl, alkoxy and combinations thereof, a second macromonomer (ii) which is a polysiloxane containing two or more hydrosilyl (≡C—SiH) groups, catalyst (iii) and, optionally, one more additional component(s) (iv) such as surfactant(s), water, etc.
1 . A curable composition comprising:
at least one macromonomer (i) which is a polysiloxane of general formula (I):
M A a D B b D C c T D d T E e M A a (I)
wherein
M A is (OR 1 ) y (R 2 ) 3-y SiO 1/2 ;
D B is R 3 2 SiO 2/2 ;
D C is R 4 R 5 SiO 2/2 ;
T D is R 6 SiO 3/2 ; and,
T E is R 7 SiO 3/2 ;
in which
R 1 , each instance, is independently hydrogen or a monovalent hydrocarbon group of from 1 to 22 carbon atoms;
R 2 , R 3 , R 4 and R 6 , each instance, is independently a monovalent hydrocarbon or alkoxy group of from 1 to 22 carbon atoms;
R 5 and R 7 , each instance, is independently a monovalent hydrocarbon group of from 1 to 22 carbon atoms and substituted with at least one amino and/or oxirane group; and,
1≦a≦19, 1≦b≦9999, 1≦c≦19, 0≦d≦9, 0≦e≦9 and 0≦y≦3;
at least one macromonomer (ii) which is an oligomer or polymer containing at least two silylhydride functional groups per molecule;
at least one catalyst (iii) for the copolymerization reaction of macromonomer(s) (i) and (ii); and,
optionally, at least one additional component (iv) selected from the group consisting of surfactant(s) and aqueous surfactant(s).
2 . The curable composition of claim 1 wherein each R 1 is hydrogen.
3 . The curable composition of claim 1 wherein in general formula (I) each R 1 independently is a monovalent hydrocarbon group of from 1 to 6 carbon atoms.
4 . The curable composition of claim 1 wherein silylhydride-containing macromonomer(s) (ii) are of the general formula (II):
M f M H g D h D H i T j T H k Q l (II)
wherein
M is R 8 R 9 R 10 SiO 1/2 ;
M H is R 11 R 12 R 13 SiO 1/2 ;
D is R 14 R 15 SiO 2/2 ;
D H is R 16 R 17 SiO 2/2 ;
T is R 18 SiO 3/2 ;
T H /is R 19 SiO 3/2 ;
Q is SiO 4/2 ;
in which
R 8 , R 9 , R 10 , R 14 , R 15 and R 18 , each instance, independently is alkyl, aryl or aralkyl of up to 22 carbon atoms;
R 11 , R 16 and R 19 each is hydrogen;
R 12 , R 13 and R 17 , each instance, independently is hydrogen or alkyl, aryl or aralkyl of up to 22 carbon atoms; and,
f, g, h, i, j, k and l are each integers wherein:
f, g, j, k and l are each greater than or equal to 0 and less than or equal to 50,
0≦h≦2000, 0≦i≦200, and provided that (f+g)≦(2+3i+3k+4l) and 1.5≦(g+i+k)≦200.
5 . The curable composition of claim 4 wherein at least one monomer is an MD-type of polysiloxane having one or more M and/or M H groups in combination with one or more D and/or D H groups, wherein M represents Si(CH 3 ) 3 O—, M H represents HSi(CH 3 ) 2 O—, D represents —Si(CH 3 ) 2 O—, and D H represents —Si(H)(CH 3 )O—.
6 . The curable composition of claim 1 wherein catalyst (iii) is at least one member of the group consisting of metallic fatty acid salt, amine, quaternary ammonium hydroxide and Lewis acid.
7 . The curable composition of claim 1 substantially devoid of organic solvent(s).
8 . A method for treating a textile to impart at least one property-enhancing characteristic thereto comprising:
a) applying to a textile an amount of curable composition which after undergoing curing provides at least one cured resin which is effective to impart at least one textile property enhancing characteristic thereto, the curable composition comprising:
at least one monomer (i) which is a polysiloxane of general formula (I):
M A a D B b D C c T D d T E e M A a (I)
wherein
M A is (OR 1 ) y (R 2 ) 3-y SiO 1/2 ;
D B is R 3 2 SiO 2/2 ;
D C is R 4 R 5 SiO 2/2 ;
T D is R 6 SiO 3/2 ; and,
T E is R 7 SiO 3/2 ;
in which
R 1 , each instance, is independently hydrogen or a monovalent hydrocarbon group of from 1 to 22 carbon atoms;
R 2 , R 3 , R 4 and R 6 , each instance, is independently a monovalent hydrocarbon or alkoxy group of from 1 to 22 carbon atoms;
R 5 and R 7 , each instance, is independently a monovalent hydrocarbon group of from 1 to 22 carbon atoms and substituted with at least one amino and/or oxirane group; and,
1≦a≦19, 1≦b≦9999, 1≦c≦19, 0≦d≦9, 0≦e≦9 and 0≦y≦3;
at least one macromonomer (ii) which is an oligomer or polymer containing at least two silylhydride functional groups per molecule;
at least one catalyst (iii) for the copolymerization reaction of macromonomer(s) (i) and (ii); and,
optionally, at least one additional component (iv) selected from the group consisting of surfactant(s) and aqueous surfactant(s); and,
b) subjecting the curable composition to curing conditions to produce a cured resin composition of macromonomer(s) (i) and (ii) and impart to the textile at least one property-enhancing characteristic.
9 . The method of claim 8 wherein the textile is in whole or in part a cellulosic textile to which the cured resin composition imparts a wrinkling resistant characteristic or the textile is in whole or in part a woolen textile to which the cured resin composition imparts an anti-pilling characteristic.
10 . The method of claim 8 wherein in general formula (I), each R 1 is hydrogen.
11 . The method of claim 8 wherein in general formula (I), each R 1 is a monovalent hydrocarbon group of from 1 to 6 carbon atoms.
12 . The method of claim 8 wherein silylhydride-containing macromonomer(s) (ii) are of the general formula (II):
M f M H g D h D H i T j T H k Q l (II)
wherein
M is R 8 R 9 R 10 SiO 1/2 ;
M H is R 11 R 12 R 13 SiO 1/2 ;
D is R 14 R 15 SiO 2/2 ;
D H is R 16 R 17 SiO 2/2 ;
T is R 18 SiO 3/2 ;
T H /is R 19 SiO 3/2 ;
Q is SiO 4/2 ;
in which
R 8 , R 9 , R 10 , R 14 , R 15 and R 18 , each instance, independently is alkyl, aryl or aralkyl of up to 22 carbon atoms;
R 11 , R 16 and R 19 each is hydrogen;
R 12 , R 13 and R 17 , each instance, independently is hydrogen or alkyl, aryl or aralkyl of up to 22 carbon atoms; and,
f, g, h, i, j, k and l are each integers wherein:
f, g, j, k and l are each greater than or equal to 0 and less than or equal to 50,
0≦h≦2000, 0≦i≦200, and provided that (f+g)≦(2+3i+3k+4l) and 1.5≦(g+i+k)≦200.
13 . The method of claim 12 wherein at least one monomer is an MD-type of polysiloxane having one or more M and/or M H groups in combination with one or more D and/or D H groups, wherein M represents Si(CH 3 ) 3 O—, M H represents HSi(CH 3 ) 2 O—, D represents Si(CH 3 ) 2 O—, and D H represents —Si(H)(CH 3 )O—.
14 . The method of claim 8 wherein catalyst (iii) is at least one member of the group consisting of metallic fatty acid salt, amine, quaternary ammonium hydroxide and Lewis acid.
15 . The method of claim 8 wherein the curable composition is substantially devoid of organic solvent(s).
16 . The cured resin composition obtained from the curing of the curable composition of claim 1 .
17 . The cured resin composition obtained from the curing of the curable composition of claim 4 .
18 . A textile having applied thereto the curable composition of claim 1 .
19 . A textile having applied thereto the curable composition of claim 4 .
20 . A textile having applied thereto the curable composition of claim 7 .
21 . The textile of claim 18 which in whole or in part is a cellulosic textile or a woolen textile.
22 . The textile of claim 19 which in whole or in part is a cellulosic textile or a woolen textile.
23 . The textile of claim 20 which in whole or in part is a cellulosic textile or a woolen textile.
24 . A textile having applied thereto the cured resin composition resulting from the curing of the curable composition of claim 1 .
25 . A textile having applied thereto the cured resin composition resulting from the curing of the curable composition of claim 4 .
26 . The textile of claim 24 which in whole or in part is a cellulosic textile or a woolen textile.
27 . The textile of claim 25 which in whole or in part is a cellulosic textile or a woolen textile.
28 . The textile of claim 26 wherein the textile is in whole or in part a cellulosic textile to which the cured resin composition imparts a wrinkling resistant characteristic or the textile is in whole or in part a woolen textile to which the cured resin composition imparts an anti-pilling characteristic.
29 . The textile of claim 27 wherein the textile is in whole or in part a cellulosic textile to which the cured resin composition imparts a wrinkling resistant characteristic thereto or the textile is in whole or in part a woolen textile to which the cured resin composition imparts an anti-pilling characteristic.