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AssigneesThe Regents of the University of California, Mitsubishi Chemical Corporation
InventorsHyunjin Moon, Costanza Leonardi, Fumihiko Shimizu, Kazuki Fukumoto, Susannah L. Scott
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A method of producing an oxidized form of waxes (polar waxes) or polyketones containing oxygen functional groups, which can be used as lubricants, adhesives, coating reagents, etc., from polypropylene (PP), polystyrene (PS) and/or polyethylene (PE). In one or more examples, a hydroperoxide was used as the oxidant to cleave C—C and C—H bonds at a mild temperature (e.g., 150° C.). C—C bond cleavage leads to a decrease in the number-averaged molecular weights (Mn) of polypropylene and polyethylene to 500-5000 g/mol. The method was successfully applied to the conversion of post-consumer polyolefin waste to make polar waxes or polyketones.
A method of synthesizing a wax or a polyketone, comprising;
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A composition of matter, comprising an oxidized polyolefin having at least one of:
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A polyketone comprising an oxygen content larger than 4 wt %;
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Dependencies are inferred from the claim text.