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US 11,628,598 B2Granted
Systems and method for manufacturing pellets from mixed plastics
AssigneeRichard Sofia
InventorRichard Sofia
Life of this patent
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Abstract
Systems and methods for forming pellets from mixed plastic materials are disclosed. An example method may include a method for forming pellets from mixed plastic materials without needing to screen or filter the mixed plastic materials. The method may include disposing a mixed plastic material into an extrusion apparatus, advancing the mixed plastic material through a die to form strands, and cutting the strands into a plurality of pellets.
Claims20
A method for forming pellets from recycled plastic, the method comprising:
- disposing a mixed recycle plastic material into an extrusion apparatus, wherein the mixed recycle plastic material comprises a non-melt material;
- heating the mixed plastic material;
- advancing the mixed plastic material through a strand die to form a plurality of mixed plastic strands, the strand die having a plurality of non-restrictive openings formed therein that are configured to allow the mixed plastic material and the non-melt material to pass therethrough;
- forming a skin on the mixed plastic strands by misting mineral oil onto the extruded strands, the mineral oil vaporizing upon contact with the strands;
- stretching the mixed plastic strands;
- and
- cutting each of the mixed plastic strands into a plurality of mixed plastic pellets,
- wherein the method is employed without use of a screen or melt filter for the mixed recycle plastic material.
5 more elements
A method for forming pellets from recycled plastic, the method comprising:
- disposing a mixed recycle plastic material into an extrusion apparatus;
- heating the mixed plastic material;
- advancing the mixed plastic material through an enlarged-hole strand die to form a plurality of mixed plastic strands, the strand die having a plurality of non-restrictive openings formed therein that are configured to allow the mixed plastic material to pass therethrough;
- forming a skin on the mixed plastic strands by misting mineral oil onto the extruded strands, the mineral oil vaporizing upon contact with the strands;
- stretching the mixed plastic strands;
- and
- cutting each of the mixed plastic strands into a plurality of mixed plastic pellets,
- wherein the method is employed without use of a screen or melt filter for the mixed recycle plastic material.
5 more elements
Dependencies are inferred from the claim text.