Method for hydrophilizing materials using hydrophilic polymeric materials with discrete charges
OwnerRonald Cramer, Robert Rohrbaugh +2inventors
InventorsRonald Cramer, Robert Rohrbaugh, John Carter, Karl Thuemmler
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Abstract
A method of rendering materials having hard and soft surfaces hydrophilic or more hydrophilic is disclosed. The method involves hydrophilizing such materials by applying a high energy treatment and charged particles and/or one or more hydrophilic polymeric materials with discrete charges to such materials.
Claims20
A method of rendering a material hydrophilic or increasing the hydrophilicity of a material, said method comprising the steps of:
- (a) providing a material;
- (b) applying a high energy surface treatment to said material to form a treated material;
- and
- (c) applying at least one hydrophilic polymeric material to said treated material, said hydrophilic polymeric material comprising at least one of the following:
- a hydrophilic polymeric material having discrete charges;
- a hydrophilic polymeric material with a strong dipole moment;
- or a hydrophilic polymeric material other than a polysaccharide-based material.
A material having a soft surface and at least one hydrophilic polymeric material thereon which provide said material with a hydrophilically-modified surface, said hydrophilic polymeric material comprising at least one of the following:
- a hydrophilic polymeric material having discrete charges;
- a hydrophilic polymeric material with a strong dipole moment;
- and a hydrophilic polymeric material other than a polysaccharide-based material.
Dependencies are inferred from the claim text.