Global Patent Index - EP 1024886 A1

EP 1024886 A1 2000-08-09 - A MANUFACTURING METHOD OF COMPOSITE MEMBRANE HAVING HYDROPHILIC COATING LAYER ON HYDROPHOBIC SUPPORT MEMBRANE

Title (en)

A MANUFACTURING METHOD OF COMPOSITE MEMBRANE HAVING HYDROPHILIC COATING LAYER ON HYDROPHOBIC SUPPORT MEMBRANE

Title (de)

VERFAHREN ZUR HERSTELLUNG EINER ZUSAMMENGESETZTEN MEMBRAN MIT EINER HYDROPHILEN BESCHICHTUNG AUF HYDROPHOBEM TRÄGER

Title (fr)

PROCEDE DE FABRICATION DE MEMBRANE COMPOSITE A COUCHE DE REVETEMENT HYDROPHILE SUR MEMBRANE SUPPORT HYDROPHOBE

Publication

EP 1024886 A1 (EN)

Application

EP 98951774 A

Priority

  • KR 9800321 W
  • KR 19970053789 A

Abstract (en)

[origin: WO9920378A1] This invention relates to a manufacturing method of composite membrane having hydrophilic coating layer on hydrophobic support membrane and more particularly, to the manufacturing method of an improved composite membrane having excellent permeation rate and separation performances with easy adjustment of a coating membrane, fabricated in such a manner that when hydrophobic support membrane containing reacting agent over its surface and in its pores, is immersed in an aqueous solution containing a hydrophilic polymer, the hydrophilic polymer is thinly coated over the surface of the hydrophobic support membrane via reaction between the hydrophilic polymer and reacting agent.

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

B01D 67/00; B01D 69/12; B01D 71/08; B01D 71/64; B01D 71/68

IPC 8 full level (invention and additional information)

B01D 67/00 (2006.01); B01D 69/06 (2006.01); B01D 69/08 (2006.01); B01D 69/12 (2006.01); B01D 71/08 (2006.01); B01D 71/38 (2006.01); B01D 71/64 (2006.01); B01D 71/68 (2006.01); B01D 71/74 (2006.01); B05D 7/04 (2006.01)

CPC (invention and additional information)

B01D 67/0088 (2013.01); B01D 69/125 (2013.01); B01D 71/08 (2013.01); B01D 71/38 (2013.01)

Citation (search report)

See references of WO 9920378A1

Designated contracting state (EPC)

DE ES FR GB IT NL

EPO simple patent family

WO 9920378 A1 19990429; EP 1024886 A1 20000809; JP 2001520111 A 20011030; KR 100217311 B1 19990901

INPADOC legal status


2002-11-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020501

2000-08-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000126

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT NL