Global Patent Index - EP 0991804 A1

EP 0991804 A1 2000-04-12 - NON-WOVEN FABRIC LAMINATE

Title (en)

NON-WOVEN FABRIC LAMINATE

Title (de)

VLIESSTOFFLAMINAT

Title (fr)

LAMELLE TEXTILE NON TISSE

Publication

EP 0991804 A1 (EN)

Application

EP 98925860 A

Priority

  • GB 9801671 W
  • GB 9712692 A

Abstract (en)

[origin: WO9858111A1] A laminate suitable for use as an electrode separator in an electrochemical device is formed from first and second non-woven fabrics which each comprise fibres of a hydrophobic polymeric material. The first fabric is formed from spun fibres and the second fabric is a melt-blown fabric. The fibres of the fabrics have undergone a copolymerisation reaction with a vinyl monomer which is capable of reacting with an acid or a base to form a salt directly or indirectly such as acrylic acid. The reaction involves exposure of the laminate to ultraviolet radiation while impregnated with a solution of the vinyl monomer, and results in grafting of the vinyl monomer to the surfaces of the fibres.

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

D04H 13/00; B32B 5/26; B32B 5/28

IPC 8 full level (invention and additional information)

B32B 5/28 (2006.01); D04H 13/00 (2006.01); D06M 14/28 (2006.01); D06M 15/263 (2006.01); H01M 2/16 (2006.01)

CPC (invention and additional information)

D04H 5/04 (2013.01); B32B 5/28 (2013.01); D04H 13/00 (2013.01); H01M 2/162 (2013.01); H01M 2/1686 (2013.01); H01M 2/18 (2013.01); H01M 10/345 (2013.01)

Citation (search report)

See references of WO 9858111A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9858111 A1 19981223; CA 2294599 A1 19981223; CN 1265166 A 20000830; EP 0991804 A1 20000412; GB 9712692 D0 19970820; JP 2002504874 A 20020212

INPADOC legal status


2002-12-18 [18R] REFUSED

- Effective date: 20020726

2000-12-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001115

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000114

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB