Treated waste plastic materials
AssigneeEastman Chemical Company
InventorsBruce Roger DeBruin, Kyle Lyn Collings, Robert Ryan Stanley
Life of this patent
Estimating the term…
Abstract
Quantities of plastic solids derived from mixed plastic waste are provided. The quantities can comprise polyolefins and/or polyethylene terephthalate and can be co-located with other quantities of plastic solids. The quantities of solids plastics can comprise particulate plastic solids that are suitable for use as feedstocks to various chemical recycling processes.
Claims20
An isolated quantity of particulate plastic solids obtained from mixed plastic waste, said quantity comprising greater than 70% by weight polyethylene terephthalate (PET), and:
- a. from 0.1% to 10% by weight polyvinyl chloride (PVC), and a moisture content of less than 4% by weight, or
- b. from 0.05% to 10% by weight halogens, or
- c. from 0.1% to 4% by weight polyvinyl chloride (PVC), and at least 0.1% by weight of solid materials that do not phase change below 270° C. and 1 atm.
A quantity of particulate plastic solids comprising at least 50% by weight polyolefins on a dry plastic basis obtained from mixed plastic waste, and:
- a) less than 10% by weight PET on a dry plastic basis, and less than 10,000 ppm of halogens, on a dry plastic basis, or
- b) a moisture content of less than 4% by weight, and at least 0.1% by weight nylons and/or at least 0.001% by weight multicomponent polymers on a dry plastic basis, or
- c) less than 10,000 ppm halogens on a dry plastic basis, and at least 0.1% by weight of solid materials that do not phase change below 270° C. and 1 atm.
An isolated quantity of particulate plastic solids treated with an antimicrobial chemical composition, said quantity comprising greater than 70% by weight polyethylene terephthalate (PET), and:
- a. from 0.1% to 10% by weight polyvinyl chloride (PVC), and a moisture content of less than 4% by weight, or
- b. from 0.05% to 10% by weight halogens, or
- c. from 0.1% to 4% by weight polyvinyl chloride (PVC), and at least 0.1% by weight of solid materials that do not phase change below 270° C. and 1 atm.
Dependencies are inferred from the claim text.