EP 1045736 A1 20001025 - METHOD FOR RECOVERING MEDICAMENTS FROM PREPARATIONS, AND FROM THE PRECURSORS OR WASTES THEREOF
Title (en)
METHOD FOR RECOVERING MEDICAMENTS FROM PREPARATIONS, AND FROM THE PRECURSORS OR WASTES THEREOF
Title (de)
VERFAHREN ZUR RÜCKGEWINNUNG VON ARZNEISTOFFEN AUS ZUBEREITUNGEN, DEREN VORPRODUKTEN ODER ABFÄLLEN
Title (fr)
PROCEDE DE RECUPERATION DE SUBSTANCES MEDICAMENTEUSES A PARTIR DE PREPARATIONS, DE LEURS PRECURSEURS OU DE LEURS REBUTS
Publication
Application
Priority
- DE 19800277 A 19980107
- EP 9900019 W 19990105
Abstract (en)
[origin: DE19800277A1] The invention relates to a method for recovering medicaments or active ingredients from preparations, and from the precursors or wastes thereof, especially in the form of a flat starting material. The invention uses film provided with an adhesive, and a material containing an active ingredient. The starting material is produced with surface areas preferably ranging between 5 and 50 cm<2>. The starting material comprising a basic active ingredient is introduced into an aqueous extraction liquid having a pH range between 7 and 1, and the starting material comprising an acidic active ingredient is introduced into an aqueous extraction liquid having a pH range between 7 and 13. The extraction liquid is permitted to act until the supporting film detaches from the laminate or until the active ingredient detaches from the supporting film during which a solution containing active ingredients is formed. The extracted medicament or active ingredient is isolated by precipitating it out of the solution containing active ingredients.
IPC 1-7
IPC 8 full level
A61K 9/70 (2006.01); B09B 3/00 (2006.01); C08J 11/06 (2006.01)
CPC (source: EP US)
B09B 3/0075 (2022.01 - EP US); C08J 11/06 (2013.01 - EP US); A61K 9/7038 (2013.01 - EP US); B09B 2101/68 (2022.01 - EP US); Y02W 30/62 (2015.05 - EP US)
Citation (search report)
See references of WO 9934941A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
DE 19800277 A1 19990708; DE 19800277 B4 20040902; AU 2419799 A 19990726; AU 741521 B2 20011206; CA 2317481 A1 19990715; CA 2317481 C 20050329; EP 1045736 A1 20001025; JP 2002501810 A 20020122; JP 4455754 B2 20100421; MY 133056 A 20071031; TW 450842 B 20010821; US 6417365 B1 20020709; WO 9934941 A1 19990715; ZA 9971 B 19990706
DOCDB simple family (application)
DE 19800277 A 19980107; AU 2419799 A 19990105; CA 2317481 A 19990105; EP 9900019 W 19990105; EP 99903603 A 19990105; JP 2000527374 A 19990105; MY PI9900032 A 19990106; TW 87121941 A 19981231; US 58237700 A 20000626; ZA 9971 A 19990106