EP 2318603 A2 20110511 - MOISTURE-ADAPTIVE VAPOUR RETARDER
Title (en)
MOISTURE-ADAPTIVE VAPOUR RETARDER
Title (de)
FEUCHTEADAPTIVE DAMPFBREMSE
Title (fr)
PARE-VAPEUR S'ADAPTANT AU TAUX D'HUMIDITÉ
Publication
Application
Priority
- EP 2009005798 W 20090810
- DE 102008037292 A 20080811
Abstract (en)
[origin: WO2010017947A2] The invention relates to a moisture-adaptive vapour retarder with at least one moisture-adaptive functional layer, which is formed from a material which has a water-vapour diffusion resistance that decreases with increasing humidity in the atmosphere surrounding the vapour retarder in such a way that the vapour retarder has a water-vapour diffusion resistance of 2 m of diffusion-equivalent air layer thickness (sd value) and above in the case of a humidity of 30-50% and a water-vapour diffusion resistance < 1 m of diffusion-equivalent air layer thickness in the case of a humidity of 60% or more. In this case, hydrophobic or hydrophilic agents are incorporated in the moisture-adaptive functional layer of the vapour retarder and/or the moisture-adaptive functional layer is provided with a coating which has hydrophobic or hydrophilic agents in such a way that the moisture-adaptive functional layer of the vapour retarder has a water-vapour diffusion resistance > 4 m of diffusion-equivalent air layer thickness, preferably > 5 m, particularly preferably > 10 m, in the case of an ambient humidity of up to 50% and a water-vapour diffusion resistance < 1 m of diffusion-equivalent air layer thickness in the case of an ambient humidity of 70% or more.
IPC 8 full level
CPC (source: EP)
E04B 1/625 (2013.01); E04B 1/64 (2013.01)
Citation (search report)
See references of WO 2010017947A2
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 MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008037292 A1 20100218; DE 202009018740 U1 20121217; EP 2318603 A2 20110511; EP 2318603 B1 20170301; WO 2010017947 A2 20100218; WO 2010017947 A3 20100701
DOCDB simple family (application)
DE 102008037292 A 20080811; DE 202009018740 U 20090810; EP 09777787 A 20090810; EP 2009005798 W 20090810