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US 11,685,809 B2Granted
Phosphorus-containing polymers, and methods of producing thereof
AssigneeNovomer, Inc.
InventorsHan Lee, Alexander Tseitlin, Sadesh H. Sookraj
Life of this patent
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Abstract
Provided are methods of producing sulfur- and phosphorus-containing polymers from beta-lactones. The sulfur- and phosphorus-containing polymers include bio-based sulfur- and phosphorus-containing polymers that may be obtained from renewable sources.
Claims5
A method, comprising:
- combining a beta-lactone with a diol compound to produce an alkanoate compound having two terminal hydroxy groups;
- and
- combining the alkanoate compound with a phosphanediamine compound or a phosphanetriamine compound to produce a phosphorus-containing polyester.
Dependencies are inferred from the claim text.