Global Patent Index - EP 1075575 A1

EP 1075575 A1 2001-02-14 - WATERTIGHT, WATER VAPOR-PERMEABLE FLAT MATERIAL

Title (en)

WATERTIGHT, WATER VAPOR-PERMEABLE FLAT MATERIAL

Title (de)

WASSERDICHTES WASSERDAMPFDURCHLÄSSIGES FLACHMATERIAL

Title (fr)

MATERIAU PLAT ETANCHE A L'EAU ET PERMEABLE A LA VAPEUR D'EAU

Publication

EP 1075575 A1 (DE)

Application

EP 99929025 A

Priority

  • DE 9901236 W
  • DE 19819085 A

Abstract (en)

[origin: DE19819085A1] The invention relates to a watertight, water vapor-permeable flat material (10), especially for a lower bracing strip of a sloping roof comprising at least one film (12) which is provided with micropores (14, 16, 18, 20). The aim of the invention is to provide a flat material which is mechanically stable and which exhibits a high water vapor permeability, but is, however, also tight against low-surface-tension water, for example, water mixed with detergents. To this end, the invention provides that the film (12) is open-pored, that the thickness of the film (12) is less than 100 mu m, and that a watertight membrane (22) which covers the micropores is provided in at least the area of the micropores (14, 16, 18, 20). Water vapor can diffuse through said membrane. In addition, the invention provides that the thickness of the membrane (22) is less than 50 mu m.

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

E04D 12/00

IPC 8 full level (invention and additional information)

E04D 12/00 (2006.01)

CPC (invention and additional information)

E04D 12/002 (2013.01)

Citation (search report)

See references of WO 9955983A1

Designated contracting state (EPC)

AT DE FR GB NL SE

EPO simple patent family

DE 19819085 A1 19991111; EP 1075575 A1 20010214; PL 344138 A1 20011008; WO 9955983 A1 19991104

INPADOC legal status


2004-02-25 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20031222

2003-11-12 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20030924

2001-02-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001026

2001-02-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT DE FR GB NL SE