Mechanoenzymatic degradation of polymers
US12344880B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 27, 2020 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Apr 13, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method of depolymerizing a polymer by combining together the polymer with an enzyme (a hydrolytic enzyme capable of catalyzing cleavage of said (CO)—O bond of an ester or carbonate linkage of the polymer) and an aqueous liquid to provide a reaction mixture. The polymer comprises a (CO)—O bond of an ester or carbonate linkage. The reaction mixture defines a ratio eta (η) of liquid volume, in μL, to total solids, in mg, that is less than 2 μL/mg. Then, allowing an enzyme-catalyzed reaction of the enzyme with the polymer to take place thereby forming a reaction product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.