Implantable swellable bio-resorbable polymer
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United States of America Patent
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Apr 26, 2016
Grant Date -
Dec 26, 2013
app pub date -
Mar 9, 2012
filing date -
Mar 9, 2011
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Abstract
The present invention relates to a polymer obtained from the polymerization of: (i) at least one monomer of formula (I) (CH2═CR1)CO—K (1) wherein: —K represents O—Z or N H—Z, Z representing (CR2R3)m-CH3, (CH2—CH2—O)m-H, (CH2—CH2—O)m-CH3, (CH2)m-NR4R5 with m representing an integer from 1 to 30; —R1, R2, R3, R4 and R5 independently represent H or a C1-C6 alkyl; (ii) at least between 0.1 and 50% mol, advantageously between 1 and 30% mol, more advantageously between 1 and 20 mol % of a cyclic monomer having a exomethylene group of formula (II) wherein: — R6, R7, R8 and R9 represent independently H or a C5-C7 aryl group or R6 and R9 are absent and R7 and R8 form together with the carbon atom on which they are bonded a C5-C7 aryl group; —i and j represent independently an integer chosen between 0 and 2; —X represents either O or X is not present and in this latter case, CR6R7 and CR8R9 are linked via a single bond C—C and (iii) at least one bio-resorbable block copolymer cross-linker.
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