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US Patent Application 20080145338 - CROSSLINKED, DEGRADABLE POLYMERS AND USES THEREOF

Application 20080145338 Filed on June 5, 2007. Published on June 19, 2008

Inventors

US Classes

424/93.1, WHOLE LIVE MICRO-ORGANISM, CELL, OR VIRUS CONTAINING528/367, FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)-526/312, Contains oxygen atom bonded to a carbon atom522/176, Organic polyamine and polycarboxylic acid or derivative or from an organic amine salt of a polycarboxylic acid514/772.4Polymer from ethylenic monomers only

Attorney, Agent or Firm

International Classes

A61K 47/32
C08G 73/00
C08F 2/48
A61K 35/00


Abstract text


Acrylate-terminated poly(beta-amino esters) are cross-linked to form materials useful in the medical as well as non-medical field. The polymeric starting material is combined with a free radical initiator, either a thermal initiator or a photoinitiator, and the mixture for cross-linking is heated or exposed to light depending on the initiator used. The resulting materials due to the hydrolysable ester bond in the polymer backbone are biodegradable under physiological conditions. These cross-linked materials are particular useful as drug delivery vehicles, tissue engineering scaffolds, and in fabricating microdevices. The materials may also be used as plastics, coating, adhesives, inks, etc. The cross-linked materials prepared exhibit a wide range of degradation times, mass loss profiles, and mechanical properties. Therefore, the properties of the material may be tuned for the desired use. The high-throughput approach to preparing a library of cross-linked poly(beta-amino esters) allows for the rapid screening and design of degradable polymers for a variety of applications.

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