Hydrophilic polymer composition
First Claim
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1. A hydrophilic polymer composition comprising a) a thermoplastic or thermoset polymer, and b) a hydrophilic fluorochemical additive of the formula:
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Rf-Q-Y-Q′
-Rh wherein Rf is a C3 to C5 fluoroalkyl group Q is a divalent linking group;
Q′
is selected from a covalent bond, —
(CmH2m)C(O)O—
, where m=1 to 3, and —
C(O)—
;
Y is a hydrophilic poly(oxyalkylene) moiety having from 8 to 15 repeat units; and
Rh is a C8-C15 alkyl group, an aryl group or combination thereof.
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Abstract
A hydrophilic polymer composition is described comprising thermoplastic of thermoset polymer, and a fluorochemical additive dispersed therein. The hydrophilic composition is useful, for example, in medical and surgical drapes.
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Citations
30 Claims
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1. A hydrophilic polymer composition comprising
a) a thermoplastic or thermoset polymer, and b) a hydrophilic fluorochemical additive of the formula: -
Rf-Q-Y-Q′
-Rhwherein Rf is a C3 to C5 fluoroalkyl group Q is a divalent linking group;
Q′
is selected from a covalent bond, —
(CmH2m)C(O)O—
, where m=1 to 3, and —
C(O)—
;
Y is a hydrophilic poly(oxyalkylene) moiety having from 8 to 15 repeat units; and
Rh is a C8-C15 alkyl group, an aryl group or combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 29, 30)
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22. A method of preparing a hydrophilic shaped article comprising:
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a) blending thermoplastic or thermoset polymer with a hydrophilic fluorochemical additive of the formula;
Rf-Q-Y-Q′
-Rhwherein Rf is a C3 to C5 fluoroalkyl group Q is a divalent linking group;
Q′
is selected from a covalent bond, —
(CmH2m)—
C(O)O—
, where m=l to 3, and —
C(O)—
;
Y is a hydrophilic poly(oxyalkylene) moiety having from 8 to 15 repeat units; and
Rh is a C8-C15 alkyl group, an aryl group or combination thereof;
wherein said mixture is present in the thermoplastic polymer at a concentration sufficient to impart hydrophilicity to the polymer;
(b) processing the blend to produce a shaped article with the fluorochemical additive dispersed within the shaped article and present at its surfaces to render those surfaces hydrophilic. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification