Method for making a mixed polymer network
OwnerCarole Herriott, S. Weerawarna +4inventors
InventorsCarole Herriott, S. Weerawarna, Richard Jewell, Mengkui Luo, Amar Neogi, Andrew Dodd
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Abstract
A method for making a mixed polymer network by reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent.
Claims20
A method for making a composition, comprising reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer having carboxylic acid or carboxylic acid derivative substituents with a crosslinking agent, wherein the crosslinking agent reacts with at least one of the carboxyalkyl cellulose or water-soluble polymer.
A method for making a composition, comprising
- (a) combining a carboxyalkyl cellulose, a water-soluble polymer, and a crosslinking agent in an aqueous solution to provide a reaction mixture, wherein the water-soluble polymer comprises a polymer having carboxylic acid or carboxylic acid derivative substituents;
- (b) precipitating the reaction mixture by addition of a water-miscible solvent to provide a precipitated mixture;
- (c) collecting the precipitated mixture;
- and
- (d) crosslinking the precipitated mixture to provide the composition.
A method for making a composition, comprising:
- (a) treating a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent to provide a reaction mixture, wherein the water-soluble polymer comprises a polymer having carboxylic acid or carboxylic acid derivative substituents;
- and
- (b) crosslinking the reaction mixture to provide the composition.
Dependencies are inferred from the claim text.