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US 2019/0167714 A1Published application
Hydrogel compositions and uses thereof
AssigneeZoetis Services LLC
InventorsChristina Lee Brown, ALEXANDRE THERRIEN, NICOLAS COTTENYE, OSCAR SUAREZ
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Abstract
The present application provides compositions configured to be provided in a flowable, liquid form but that are configured to transition to a solid or semi-solid gel based upon a change in pH. The change in pH can arise from one or more materials utilized in the composition itself or based upon encountering an environment with a significantly different pH. The compositions are particularly suited for use as a teat sealant in non-human mammals, particularly cattle.
Claims12
A composition comprising:
- chitosan;
- a biocompatible acid;
- a filler,
- a fluidizing agent;
- and
- at least 50% by weight of an aqueous medium based upon the total weight of the composition;
- wherein the composition is a flowable liquid at a pH of less than 6 less and is a solid or semi-solid gel at a pH of about 6.5 or greater.
4 more elements
Dependencies are inferred from the claim text.