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US 9,957,356 B2Granted
Non-isocyanate polyurethanes and methods of making and using the same
AssigneeElevance Renewable Sciences, Inc.
InventorsKeren Zhang, Ashley M. Nelson, Timothy E. Long, Paul A. Bertin, Allyson Beuhler
Life of this patent
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Abstract
Polyurethane compositions are disclosed herein, as well as methods of making and using such polyesters. In some embodiments, the polyurethanes are formed from monomers derived from natural oils. In some embodiments, the polyurethanes are formed without the use of monomers bearing isocyanate groups.
Claims20
A polymer, which comprises constitutional units formed from one of more compounds of Formula (I):
- and constitutional units formed from one or more compounds for Formula (II):
- wherein:
- R1 is —OH or —OR2;
- R2 is C1-6 alkyl or C1-6 oxyalkyl;
- X1 is C4-10 alkylene;
- and
- X2 is C4-24 alkylene or C4-24 heteroalkylene.
4 more elements
Dependencies are inferred from the claim text.