EP 1206671 A1 20020522 - DRYING AND/OR DRY PROCESS PRESERVATION METHOD USING SEMI-PERMEABLE MEMBRANE
Title (en)
DRYING AND/OR DRY PROCESS PRESERVATION METHOD USING SEMI-PERMEABLE MEMBRANE
Title (de)
VERFAHREN ZUR TROCKNUNG UND/ODER TROCKENE AUFBEWAHRUNG DURCH EINE SEMIPERMEABLE MEMBRANE
Title (fr)
PROCEDE DE SECHAGE ET/OU DE CONSERVATION A SEC PAR MEMBRANE SEMI-PERMEABLE
Publication
Application
Priority
- FR 0002389 W 20000828
- FR 9910849 A 19990827
Abstract (en)
[origin: WO0116542A1] The invention concerns a method for drying moisture-sensitive substances with a solvent which mainly consists in separating said substances from an ambient atmosphere wherein said solvent is present by hermetically sealing said substances in an envelope having advantageously a wall zone non-adherent to said substances wherein said envelope consists essentially of a polymer membrane selectively permeable to the moisturising solvent vapour except to said solvent in liquid state. The inventive method is also useful for preventive treatment of dry substances against moisture.
IPC 1-7
IPC 8 full level
F26B 5/00 (2006.01); B01D 53/22 (2006.01); B01D 53/26 (2006.01); B01D 61/36 (2006.01); B01D 69/12 (2006.01); B01D 71/52 (2006.01); B01D 71/56 (2006.01); C08J 5/18 (2006.01); F26B 9/00 (2006.01)
CPC (source: EP)
F26B 9/006 (2013.01)
Citation (search report)
See references of WO 0116542A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0116542 A1 20010308; AT E269527 T1 20040715; AU 7017800 A 20010326; AU 764170 B2 20030814; CA 2383070 A1 20010308; CN 1143118 C 20040324; CN 1371463 A 20020925; DE 60011632 D1 20040722; DE 60011632 T2 20050728; EP 1206671 A1 20020522; EP 1206671 B1 20040616; ES 2223573 T3 20050301; FR 2797781 A1 20010302; FR 2797781 B1 20021108; JP 2003511214 A 20030325; JP 3643985 B2 20050427; PT 1206671 E 20041029
DOCDB simple family (application)
FR 0002389 W 20000828; AT 00958753 T 20000828; AU 7017800 A 20000828; CA 2383070 A 20000828; CN 00812156 A 20000828; DE 60011632 T 20000828; EP 00958753 A 20000828; ES 00958753 T 20000828; FR 9910849 A 19990827; JP 2001520052 A 20000828; PT 00958753 T 20000828