A composition for imparting surface properties to substrates comprising a polymer of at least one polyurethane having at least one urea linkage prepared by:
(i) reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, having isocyanate groups, and (b) at least one fluorinated compound selected from the formula (I):
R
f
1
-L-X (I)
wherein
R
f
1
is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having 2 to 100 carbon atoms; optionally interrupted by 1 to 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least 2:1 and no oxygen atoms are bonded to each other;
L is a bond or a linear or branched divalent linking group having 1 to about 20 carbon atoms, said linking group optionally interrupted by 1 to about 4 hetero-radicals selected from the group consisting of —O—, —NR
1
—, —S—, —SO—, —SO
2
—, and —N(R
1
)C(O)— wherein R
1
is H or C
1
to C
6
alkyl, and said linking group optionally substituted with CH
2
Cl;
X is an isocyanate-reactive group selected from the group consisting of —OH, —N(R)H, and —SH; and thereafter
(ii) reacting with (c) water and (d) 0.05 to about 2.0 % by weight of an isocyanate-reactive fluorinated particulate component, based on a total dry weight of the composition.
The present invention is directed to a fluorosilane represented by (L)
3
-Si—(CH
2
)
n
—(Z
1
)
a
—[C(X
1
)]
x
—(Z
2
)
l
-Q
1
-R
f
where each n is independently an integer from 1 to 12; L is independently chosen from a hydrolysable or non-hydrolysable monovalent group; R
f
is chosen from a C
2
-C
12
perfluoroalkyl provided that: i) one fluorine atom of the perfluoroalkyl can be optionally replaced by hydrogen, and/or ii) the perfluoroalkyl can be optionally interrupted by at least one oxygen, methylene, or ethylene; Q
1
is chosen from the group consisting of a C
2
-C
12
hydrocarbylene optionally interrupted by at least one divalent organic group; X
1
is chosen from O or S; —Z
2
is —NH— and Z
1
is from the group consisting of —O—, and —S—; each R
1
is independently chosen from hydrogen, phenyl, or a monovalent C
1
-C
8
alkyl optionally terminated by —C
6
H
5
, preferably H or CH
3
.
A composition for imparting surface properties to substrates comprising a polymer of at least one polyurethane having at least one urea linkage prepared by:
(i) reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, having isocyanate groups, and (b) at least one fluorinated compound selected from the formula (I):
Rf1-L-X (I)
wherein
Rf1 is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having 2 to 100 carbon atoms; optionally interrupted by 1 to 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least 2:1 and no oxygen atoms are bonded to each other;
L is a bond or a linear or branched divalent linking group having 1 to about 20 carbon atoms, said linking group optionally interrupted by 1 to about 4 hetero-radicals selected from the group consisting of —O—, —NR1—, —S—, —SO—, —SO2—, and —N(R1)C(O)— wherein R1 is H or C1 to C6 alkyl, and said linking group optionally substituted with CH2Cl;
X is an isocyanate-reactive group selected from the group consisting of —OH, —N(R)H, and —SH; and thereafter
(ii) reacting with (c) water and (d) 0.05 to about 2.0% by weight of an isocyanate-reactive fluorinated particulate component, based on a total dry weight of the composition.
Sulfur containing fluoroalkyl amines and isocyanates
申请人:E. I. du Pont de Nemours and Company
公开号:EP2662354A2
公开(公告)日:2013-11-13
The present invention provides sulfur containing fluoroalkyl amines represented by the formula Rf-Q-S(O)x-C(H)i(CH3)j-(CH2)z+(i-1)-NHR and isocyanate/isothiocyanate derivatives thereof represented by the formula Rf-Q-S(O)x-C(H)i(CH3)j-(CH2)z+(i-1)-N=C=X1 wherein Rf is chosen from a C2-C12 perfluoroalkyl provided that: i) one fluorine atom of the perfluoroalkyl can be optionally replaced by hydrogen, and/or ii) the perfluoro-alkyl can be optionally interrupted by at least one oxygen, methylene, or ethylene; Q is chosen from the group consisting of a C2-C12 hydrocarbylene optionally interrupted by at least one divalent organic group; x is 1 or 2; z is 0 or 1; i is 1 or 2; j is 0 or 1; provided that i+j=2; R is chosen from H or a C1 to C4 alkyl; and X1 is O or S.