Global Patent Index - EP 1068055 A1

EP 1068055 A1 2001-01-17 - WATER VAPOUR PERMEABLE MEMBRANE

Title (en)

WATER VAPOUR PERMEABLE MEMBRANE

Title (de)

WASSERDAMPFDURCHLÄSSIGE MEMBRAN

Title (fr)

MEMBRANE PERMEABLE A LA VAPEUR D'EAU

Publication

EP 1068055 A1 (DE)

Application

EP 99917788 A

Priority

  • DE 9900753 W
  • DE 19812756 A

Abstract (en)

[origin: DE19812756A1] The invention relates to a method and device for producing a membrane or a sheet which is water vapour permeable but water impervious, and consequently air permeable. Said membrane is produced by elastic stretching of a polymer sheet which is perforated in its stretched condition, and then relieved after the perforating step.

IPC 1-7 (main, further and additional classification)

B26F 1/24; B26D 7/14

IPC 8 full level (invention and additional information)

B26D 7/14 (2006.01); B26F 1/24 (2006.01)

CPC (invention and additional information)

B26D 7/14 (2013.01); B26F 1/24 (2013.01)

Citation (search report)

See references of WO 9948653A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

DE 19812756 A1 19991007; EP 1068055 A1 20010117; WO 9948653 A1 19990930

INPADOC legal status


2004-02-11 [18W] WITHDRAWN

- Effective date: 20031202

2001-03-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010201

2001-01-17 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001020

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE