Back to results
US 2006/0052495 A1Published application
Hydrophilic polymer composition
Assignee3M Innovative Properties Company
InventorsThomas Klun, Larry Boardman, Richard Ross, Gregg Caldwell
Life of this patent
Estimating the term…
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.
Claims30
A hydrophilic polymer composition comprising
- a) a thermoplastic or thermoset polymer, and
- b) a hydrophilic fluorochemical additive of the formula:
- 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.
7 more elements
A method of preparing a hydrophilic shaped article comprising:
- a) blending thermoplastic or thermoset polymer with a hydrophilic fluorochemical additive of the formula:
- 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=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.
8 more elements
Dependencies are inferred from the claim text.