← Back to Patent Explorer
EP0274127A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Biologically degradable derivatives of poly(hydroxy alkyl)aminodicarboxylic acid, process for their preparation and their use for sustained release compositions

Assignee: Hoechst AG
•
Filing: 1987-12-29
•
Granted: —
•
Expires: 2007-12-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Die Erfindung betrifft biologisch abbaubare Poly-(hydroxyalkyl)-Aminodicarbonsäure-Derivate der Formel I <IMAGE> in der n, m, x, y, z, R und R' die angegebenen Bedeutungen haben sowie ein Verfahren zu ihrer Herstellung und die Verwendung derselben für Depotzubereitungen mit kontrollierter Wirkstoffzugabe. The invention relates to biodegradable poly (hydroxyalkyl) aminodicarboxylic acid derivatives of the formula I <IMAGE> in which n, m, x, y, z, R and R 'have the meanings given and a process for their preparation and their use for depot preparations with controlled addition of active ingredients.

Inventors

  • 👤 Hubert Dr. Bader
  • 👤 Diether Dr. Rüppel
  • 👤 Axel Dr. Walch

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 15:08
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/10; A; A61; A61K; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1641; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2031; A61K9/2045; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5031

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag