Chewable toy for animal
OwnerPhilip L. Edwardsinventor
Life of this patent
Estimating the term…
Abstract
A super-tough molded elastomeric chewable polyurethane toy for an animal. The toy may be shaped to simulate a dog bone and to make swallowing difficult when being chewed. It is also chemically inert in the animal's digestive system and is characterized by moderate hardness, resilient deformability, large tensile strength and resistance to shearing. It is generally slightly heavier than water, but may be foamed or impregnated with air to float. The toy also makes use of a unique property of polyurethane whereby a surface-migrating flavoring pleasing to the animal is mixed with the polyurethane composition while the latter is in a liquid phase prior to being molded to the desired shape. Thus as the flavoring is chewed off or otherwise dissipated from the exterior surface of the toy, the flavoring is continuously replenished.
Claims11
The method of manufacturing a flavored polyurethane chewable toy for an animal, the steps of
- (a) formulating liquid components in measured quantities required for a selected polyurethane having a predetermined set of physical characteristics,
- (b) initiating an exothermic reaction by thoroughly mixing said components to provide the fluid composition required for said polyurethane,
- (c) curing the composition by allowing it to polymerize and harden to become said polyurethane,
- (d) granulating the hardened and cured polyurethane,
- (e) heating the granulated polyurethane to melt the same to provide a fluid composition for molding,
- (f) thoroughly mixing a measured quantity of a surface-migrating flavoring extract in the liquid composition during at least one of steps (b) and (e),
- (g) thereafter providing a mold and molding the flavored composition in said mold to form said chewable toy.
The method of manufacturing a flavored polyurethane chewable toy for an animal, the steps of
- (a) initiating an exothermic reaction by thoroughly mixing measured quantities of separate compositions including an isocynate composition (R--N.dbd.C.dbd.O) and a hydroxyl composition (R--OH) capable of polymerization to a polyurethane having predetermined physical characteristics,
- (b) thoroughly mixing in said exothermic reaction a measured quantity of a surface-migrating flavoring extract incompatable with the polymerized polyurethane,
- (c) curing the mixture by allowing polymerization of said composition to said polyurethane, and
- (d) molding the polyurethane to form said chewable toy.
Dependencies are inferred from the claim text.