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US 2011/0213100 A1Published application
Novel polymers with hydroxyl acid blocks
AssigneeMolecon, Inc.
InventorsBin Huang, Edwin W. Huang
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Abstract
The present invention relates polymers comprising non-degradable blocks and degradable blocks and methods of manufacturing such polymers.
Claims21
A polymer comprising non-degradable blocks and degradable blocks.
A degradable segment according to Formula (III):
- wherein t, m, n are integers other than zero,
- X is Cl, Br, I, NH2—, HO—, R′OCO—C6H4—COO— (where R′ is H, CH3, C2H5 or any other alkyls), or other polymer chains and
- R, R1, R2 are members independently selected in each structural units from H, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl and substituted or unsubstituted heteroaryl, substituted or unsubstituted alkoxy, ester, nitro, amine, amide, or thiol.
A degradable segment according to Formula (IV):
- wherein t, m, n are integers,
- R is alkyls (CH3, C2H5 . . . ),
- R″ is any substitute groups, and
- R′ is H or alkyls.
1 more element
A method of making a polymer comprising degradable blocks and non-degradable blocks, said method comprises the steps of:
- (a) synthesizing degradable hydroxyl acids blocks;
- (b) polymerizing non degradable polymer monomer or pre polymer with degradable hydroxyl acids blocks to form said polymers in a solution polymerization process or melting polymerization process.
A method of making a polymer comprising degradable blocks and non-degradable blocks, said method comprises the steps of:
- (a) synthesizing degradable hydroxyl acids blocks;
- (b) synthesizing non-degradable polymers;
- and
- (c) joining said non-degradable blocks with and said degradable polymers in a solution polymerization process or melting polymerization process.
1 more element
Dependencies are inferred from the claim text.