Production of useful articles from waste material
AssigneeStrandex Corporation
InventorBrian D. Keller
Life of this patent
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Abstract
Disclosed is a process of using waste material comprising absorbent material and a thermoplastic material, such as from the manufacture of disposable absorbent articles, to produce useful articles. The process includes shearing the waste material, chopping the waste material, pelleting the waste material, and extruding or injection molding the pelleted material to create a useful article.
Claims26
A method of using waste material comprising an absorbent material and a thermoplastic material in the production of a useful article comprising:
- obtaining a pelleted material, wherein the pelleted material is made from a process comprising:
- shearing the waste material to generate sheared material, wherein the waste material is homogenized and densified;
- chopping the sheared material to generate chopped material, wherein the chopped material has reduced particle size and increased density with respect to the sheared material;
- combining and mixing the chopped material with one or more other materials to form a mixed material;
- and
- processing the mixed material to form the pelleted material;
- and
- extruding or injection molding the pelleted material.
A method of using waste material comprising an absorbent material and a thermoplastic material in the production of a useful article comprising:
- obtaining a pelleted material, wherein the pelleted material is made from a process comprising:
- shearing the waste material to generate sheared material, wherein the waste material is homogenized and densified;
- chopping the sheared material to generate chopped material, wherein the chopped material has reduced particle size and increased density with respect to the sheared material;
- combining and mixing the chopped material with one or more other materials to form a mixed material;
- and
- processing the mixed material to form the pelleted material, wherein the processing melts at least a portion of the thermoplastic material to encapsulate the absorbent material and thereby prevent absorption of moisture;
- and
- extruding or injection molding the pelleted material.
A method of using waste material comprising an absorbent material and a thermoplastic material in the production of a useful article comprising:
- shearing the waste material to generate sheared material, wherein the waste material is homogenized and densified;
- chopping the sheared material to generate chopped material, wherein the chopped material has reduced particle size and increased density with respect to the sheared material;
- combining and mixing the chopped material with one or more other materials to form a mixed material;
- processing the mixed material to form pelleted material;
- and
- extruding or injection molding the pelleted material.
Dependencies are inferred from the claim text.