EP 2129275 A1 20091209 - BIOLOGICALLY DEGRADABLE MULTILAYER SYSTEM
Title (en)
BIOLOGICALLY DEGRADABLE MULTILAYER SYSTEM
Title (de)
BIOLOGISCH ABBAUBARES MEHRSCHICHTSYSTEM
Title (fr)
SYSTÈME MULTICOUCHE BIODÉGRADABLE
Publication
Application
Priority
- EP 2008002620 W 20080402
- DE 102007016684 A 20070404
Abstract (en)
[origin: WO2008122398A1] An object made of at least two layers is disclosed, in which a first layer is a biologically degradable water-soluble support material containing an active agent and connected to at least one second layer, which is made up of a biologically degradable but water-insoluble material in the form of fibres. The active agents can be pharmaceutical agents, cosmetics, cleaning agents, agrochemicals and biocides. The object serves for the controlled release of at least one active agent based on the effect of water. The fibre structure of the second layer permits a control of the speed of water entry and/or exit.
IPC 8 full level
A47L 13/00 (2006.01); A61K 8/02 (2006.01); A61K 8/72 (2006.01); A61K 9/70 (2006.01); A61K 47/32 (2006.01); A61K 47/36 (2006.01); A61K 47/38 (2006.01); A61Q 19/10 (2006.01); B32B 5/18 (2006.01); C11D 3/16 (2006.01); C11D 3/37 (2006.01); C11D 17/04 (2006.01)
CPC (source: EP US)
A61K 8/0208 (2013.01 - EP US); A61P 17/02 (2017.12 - EP); A61Q 19/00 (2013.01 - EP US); A61Q 19/10 (2013.01 - EP US); C11D 17/041 (2013.01 - EP US)
Citation (search report)
See references of WO 2008122398A1
Citation (examination)
KOHN, J.: "Biodegradable and Bioerodible Materials", BIOMATERIALS SCIENCE, 1 January 2004 (2004-01-01), pages 115 - 127, XP009156565
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102007016684 A1 20081009; EP 2129275 A1 20091209; JP 2010523746 A 20100715; US 2010150976 A1 20100617; WO 2008122398 A1 20081016
DOCDB simple family (application)
DE 102007016684 A 20070404; EP 08734965 A 20080402; EP 2008002620 W 20080402; JP 2010501429 A 20080402; US 59439308 A 20080402