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US 2013/0274362 A1Published application
Hydrogels that undergo volumetric expansion in response to changes in their environment and their methods of manufacture and use
AssigneeMicroVention, Inc.
InventorsGregory M. Cruise, Michael J. Constant
Life of this patent
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Abstract
Hydrogels are described that expand volumetrically in response to a change in their environment and as well as their methods of manufacture and use.
Claims18
An environmentally responsive hydrogel comprising:
- a base treated acrylic polymer having de-protonated amine functional groups comprising a reaction product of environmentally responsive monomers or prepolymers and a multifunctional crosslinker,
- wherein said environmentally responsive hydrogel is dry and wherein the environmentally responsive hydrogel has a controlled rate of expansion at physiological pH.
Dependencies are inferred from the claim text.