EP 0963293 A1 19991215 - BREATHABLE MULTILAYER FOIL
Title (en)
BREATHABLE MULTILAYER FOIL
Title (de)
ATMUNGSAKTIVE MEHRSCHICHTFOLIE
Title (fr)
FEUILLE MULTICOUCHE A ACTIVITE RESPIRATOIRE
Publication
Application
Priority
- DE 19706380 A 19970219
- EP 9800694 W 19980209
Abstract (en)
[origin: DE19706380A1] The invention relates to a foil consisting of at least two layers and made of thermoplastic polyurethane with directional water vapour permeability. The water vapour permeability of each of said foils varies depending on which of the two outer layers of the foil faces the moisture source, when water vapour permeability as determined in accordance with DIN 53122, measured across the total density of the foil. The thermoplastic polyurethanes used for the foil are made of possibly hydrophilized rigid segments consisting of diisocyanates and low-molecular diols as chain extenders, and of soft segments consisting of bifunctional polyols, the latter being high molecular polyethers and/or polyesters.
IPC 1-7
IPC 8 full level
A41D 31/00 (2006.01); A41D 31/02 (2006.01); A61L 15/26 (2006.01); B32B 7/02 (2019.01); B32B 27/40 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01)
CPC (source: EP KR US)
A41D 31/125 (2019.01 - EP US); A41D 31/145 (2019.01 - EP US); A61L 15/26 (2013.01 - EP); A61L 15/42 (2013.01 - EP); B32B 7/02 (2013.01 - EP KR US); B32B 27/08 (2013.01 - US); B32B 27/40 (2013.01 - EP KR US); B29C 48/00 (2019.01 - EP); B29C 48/08 (2019.01 - EP); B32B 2307/724 (2013.01 - US); B32B 2437/00 (2013.01 - US)
C-Set (source: EP)
Citation (search report)
See references of WO 9836908A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IT LI NL PT SE
DOCDB simple family (publication)
DE 19706380 A1 19980820; AU 6621298 A 19980909; CA 2280790 A1 19980827; EP 0963293 A1 19991215; JP 2001512381 A 20010821; KR 20000071181 A 20001125; WO 9836908 A1 19980827
DOCDB simple family (application)
DE 19706380 A 19970219; AU 6621298 A 19980209; CA 2280790 A 19980209; EP 9800694 W 19980209; EP 98908072 A 19980209; JP 53620198 A 19980209; KR 19997007471 A 19990818