Global patent index - EP 0996496 A1

EP 0996496 A1 2000-05-03 - INTEGRAL NON WOVEN REINFORCEMENT POROUS MEMBBRANES

Title (en)

INTEGRAL NON WOVEN REINFORCEMENT POROUS MEMBBRANES

Title (de)

INTEGRAL VLIESVERSTÄRKTE PORÖSE MEMBRANEN

Title (fr)

MEMBRANES POREUSES A RENFORCEMENT PAR NON TISSES INTEGRES

Publication

EP 0996496 A1 (DE)

Application

EP 98939624 A

Priority

  • DE 19729456 A
  • EP 9804228 W

Abstract (en)

[origin: DE19729456C1] A porous organic polymer membrane is integrally reinforced with nonwoven fibres having a surface weight of 20-40 g/m<2>, thickness of 90-170 mu m and an air permeability of 1,200-2,400 l/m<2> at 0.002 bar is claimed.

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

B01D 69/10

IPC 8 full level (invention and additional information)

B01D 69/10 (2006.01); B01D 71/12 (2006.01); B01D 71/42 (2006.01); B01D 71/56 (2006.01); B01D 71/68 (2006.01); B32B 5/24 (2006.01); C08J 9/00 (2006.01)

CPC (invention and additional information)

B01D 69/10 (2013.01)

Citation (search report)

See references of WO 9902247A1

Designated contracting state (EPC)

FR GB

EPO simple patent family

DE 19729456 C1 19981022; EP 0996496 A1 20000503; JP 2001509430 A 20010724; US 6293411 B1 20010925; WO 9902247 A1 19990121

INPADOC legal status

2004-09-01 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040203

2000-05-03 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19990901

2000-05-03 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): FR GB