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US 10,947,388 B2Granted
Plastic articles made from recycled medical and other plastic waste
AssigneeTriumvirate Environmental, Inc.
InventorJohn F. McQuillan, Jr.
Life of this patent
Estimating the term…
Abstract
Blends of recycled plastic materials and plastic products made therefrom are provided. The blends combine a high fraction of recycled medical waste with mixed recycled plastics, such as polyolefins or carpet waste. Also provided are methods for processing a heterogeneous waste stream such as medical waste to yield a homogenous material capable of blending with other materials and extrusion to form useful plastic products such as structural materials and consumer articles.
Claims12
A method of making a paintable plastic commercial object, the method comprising the steps of:
- (a) providing a medical waste material, a blending agent, and one or more recycled plastic materials;
- (b) sterilizing the medical waste material, wherein the sterilization results in at least a log 6 kill factor;
- (c) shredding and blending the product of step (b);
- (d) adding a blending agent and the one or more recycled plastic materials to the product of step (c);
- (e) blending the product of step (d);
- (f) optionally pelletizing or grinding the product of step (e);
- (g) forming a melt from the product of step (e) or step (f);
- and
- (h) extruding the melt to form a paintable plastic commercial object, wherein the commercial object is selected from lumber, landscaping timbers, railroad ties, decking material, plastic-containing furniture, playground structures, building framing materials, structural members, roofing, or flooring.
6 more elements
Dependencies are inferred from the claim text.