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US 2013/0281633 A1Published application
Polymer compositions and methods
AssigneeNovomer, Inc.
InventorScott D. Allen
Life of this patent
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Abstract
The present disclosure describes polymer compositions comprising aliphatic polycarbonate chains containing epoxy functional groups. In certain embodiments, the aliphatic polycarbonate chains comprise epoxy functional groups capable of participating in epoxide ring-opening reactions. In certain embodiments, the invention encompasses composites formed by the reaction of nucleophilic reagents and epoxide functional groups, wherein the epoxide functional groups are located on aliphatic polycarbonate chains.
Claims64
A polymer composition comprising aliphatic polycarbonate chains having epoxy functional groups, wherein
- a) the aliphatic polycarbonate comprises a repeating unit having a structure:
- where R1, R2, R3, and R4 are, at each occurrence in the polymer chain, independently selected from the group consisting of —H, fluorine, and an optionally substituted C1-20 aliphatic group, where any two or more of R1, R2, R3, and R4 may optionally be taken together with intervening atoms to form one or more optionally substituted rings optionally containing one or more heteroatoms;
- c) the molecular weight of the aliphatic polycarbonate chains is on average in the range of about 500 g/mol to about 500,000 g/mol.
Dependencies are inferred from the claim text.