Global patent index - EP 1025171 A1

EP 1025171 A1 2000-08-09 - METHOD FOR COATING ELECTRICALLY CONDUCTIVE PARTICLES BY GRAFTING A POLYMER LAYER AND PRODUCTS RESULTING FROM SAID METHOD

Title (en)

METHOD FOR COATING ELECTRICALLY CONDUCTIVE PARTICLES BY GRAFTING A POLYMER LAYER AND PRODUCTS RESULTING FROM SAID METHOD

Title (de)

VERFAHREN ZUM BESCHICHTEN VON LEITFÄHIGEN PARTIKELN DURCH PFROPFEN EINER POLYMERSCHICHT SOWIE DIE SO ERHALTENEN ERZEUGNISSE

Title (fr)

PROCEDE POUR L'ENROBAGE DE PARTICULES CONDUCTRICES DE L'ELECTRICITE PAR GREFFAGE D'UNE COUCHE POLYMERE ET PRODUITS ISSUS DE CE PROCEDE

Publication

EP 1025171 A1 (FR)

Application

EP 98951121 A

Priority

  • BE 9800158 W
  • BE 9700845 A

Abstract (en)

[origin: WO9920697A1] The invention concerns a method for forming a coat on conductive particles by grafting a polymer and/or a copolymer on said particles from a bath containing at least a monomer from which said polymer and/or copolymer is formed. The method consists in producing said grafting by electrochemical reduction of said monomer in an electrolytic solution, wherein are provided at least a cathode and an anode and containing an aprotic solvent, a support-electrolyte and the monomer(s) required for polymerising or copolymerising the coat by suspending the particles and moving said solution so as to produce an intermittent contact between said particles and the cathode, and to form, by polymerisation or copolymerisation, the coat on the particles by applying an appropriate potential.

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

C09D 5/44

IPC 8 full level (invention and additional information)

B05D 7/00 (2006.01); B01J 2/00 (2006.01); C09D 5/44 (2006.01); C25D 13/06 (2006.01); H01B 1/00 (2006.01)

CPC (invention and additional information)

C09D 5/4476 (2013.01)

Citation (search report)

See references of WO 9920697A1

Designated contracting state (EPC)

BE DE ES FR GB IT LU NL

EPO simple patent family

WO 9920697 A1 19990429; AU 9730698 A 19990510; BE 1011511 A6 19991005; EP 1025171 A1 20000809; JP 2001520317 A 20011030; US 6375821 B1 20020423

INPADOC legal status

2004-11-03 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040501

2002-08-21 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020704

2000-08-30 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000516

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

- Ref Legal Event Code: AK

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