Photo-activated hydrophilic coatings and methods for their preparation and use
AssigneeEmpire Technology Development LLC
InventorBuker Nicolas
Life of this patent
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Abstract
Disclosed herein are coating compositions and methods of making and using the same. The coating composition includes a first polymer having at least one positively charged group; a second polymer having at least one negatively charged group; and at least one protecting group contacting the positively charged group of the first polymer, the negatively charged group of the second polymer, or both. The protecting group is configured to be removed by photocleavage to form a salt bridge between the positively and negatively charged groups. The coating composition may be hydrophilic when the salt bridge is formed.
Claims29
A coating composition, comprising:
- a first polymer comprising at least one positively charged group;
- a second polymer comprising at least one negatively charged group;
- and
- at least one protecting group contacting the at least one positively charged group of the first polymer, the at least one negatively charged group of the second polymer, or both, wherein the at least one protecting group is configured to be removed by photo cleavage to form a salt bridge between the at least one positively and at least one negatively charged groups.
A method of making a coating composition, the method comprising:
- providing a mixture comprising:
- a first polymer comprising at least one positively charged group,
- a second polymer comprising at least one negatively charged group, and
- at least one protecting group contacting the at least one positively charged group of the first polymer, the at least one negatively charged group of the second polymer, or both, wherein the at least one protecting group is configured to be removed by photo cleavage to form a salt bridge between the at least one positively and at least one negatively charged groups.
An article of manufacture, comprising:
- a coating covering at least a portion of the article, wherein the coating comprises:
- a first polymer comprising at least one positively charged group,
- a second polymer comprising at least one negatively charged group, and
- at least one protecting group contacting the at least one positively charged group of the first polymer, the at least one negatively charged group of the second polymer, or both;
- wherein the at least one protecting group is configured to be removed by photo cleavage to form a salt bridge between the at least one positively and at least one negatively charged groups.
Dependencies are inferred from the claim text.