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US 6,274,182 B1Granted
Animal chew
AssigneeT.F.H. Publications, Inc.
InventorsGlen S. Axelrod, Ajay Gajria
Life of this patent
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Abstract
An biodegradable animal chew made from polyesteramide and starch is disclosed. In addition, a method of forming such a biodegradable animal chew is disclosed wherein the polyesteramide component forms distinct continuous domains dispersed within a continuous starch phase.
Claims14
A method of forming a biodegradable animal chew, comprising the steps of:
- supplying a polyesteramide;
- supplying starch;
- mixing said polyesteramide and said starch and introducing said mixture to a mixing and molding apparatus wherein said apparatus comprises a hopper feed section, a barrel, an output nozzle, and a plurality of heating zones in said barrel extending from said hopper section to said nozzle and wherein said heating zones are set to temperatures that do not result in a thorough melt intermixing of the polyesteramide component with the starch component such that upon molding said polyesteramide/starch mixture into said animal chew said molded article comprises discrete polyesteramide domains within a continuous starch domain.
Dependencies are inferred from the claim text.