C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/60 (2006.01) A61K 47/34 (2006.01) C05G 3/00 (2006.01)
Patent
CA 2324279
The invention relates to biodegradable polycondensates, to the production of said polycondensates, and to their use for releasing specific substances. The polycondensates are derived from at least three components chosen from the following group: a) dianhydrohexites b) bivalent (polyvalent) organic carboxylic acids and c) polyvalent organic carboxylic acids which, in addition to two carboxylic acid functions, have at least one other, optionally capped, i.e. OH and/or COOH function.
L'invention concerne des polycondensés biodégradables, leur production et leur utilisation pour le dégagement ciblé d'agents chimiques. Les polycondensés sont dérivés d'au moins trois composés choisis dans le groupe des a) dianhydroxyhexites, des b) acides carboxyliques organiques bivalents (polyvalents), et des a) acides carboxyliques organiques polyvalents, qui présentent non seulement deux fonctions d'acides carboxyliques mais aussi au moins une autre fonction, notamment une fonction OH et/ou COOH, éventuellement coiffante.
Bengs Holger
Boehm Gitte
Clauss Joachim
Schonfeld Axel
Weis Siegfried
Axiva Gmbh
Celanese Ventures Gmbh
Fetherstonhaugh & Co.
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