Global Patent Index - EP 0197981 B1

EP 0197981 B1 19900228 - CATALYTIC POLYMER ELECTRODE FOR CATHODIC PROTECTION AND CATHODIC PROTECTION SYSTEM COMPRISING SAME

Title (en)

CATALYTIC POLYMER ELECTRODE FOR CATHODIC PROTECTION AND CATHODIC PROTECTION SYSTEM COMPRISING SAME

Publication

EP 0197981 B1 19900228 (EN)

Application

EP 85904921 A 19850919

Priority

  • US 65663484 A 19841001
  • US 77244385 A 19850906

Abstract (en)

[origin: WO8602106A1] A catalytic polymer electrode comprises a current conducting polymer body forming an electrode base which is provided with catalytic valve metal particles fixed to its surface. A current conducting body of carbon filled thermoplastic polymer is heated to soften its outer surface, and the catalytic valve metal particles are pressed onto its softened surface and thereby attached to the surface of the polymer body. Such a catalytic polymer electrode used as an anode in an impressed-current cathodic protection system comprises a catalyst to provide a reduced oxygen potential. Such catalytic polymer anodes may be applied in systems for impressed current cathodic protection of reinforced concrete structures, such as bridge decks, support members, parking garages, or of buried or submerged steel structures such as gas and oil pipelines, offshore production platforms, fuel storage tanks, well casings.

IPC 1-7

C23F 13/02; C25B 11/04

IPC 8 full level

C23F 13/02 (2006.01)

CPC (source: EP)

C23F 13/02 (2013.01); C23F 2201/02 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 8602106 A1 19860410; AU 4960285 A 19860417; BR 8506959 A 19861223; CA 1278775 C 19910108; DE 3576174 D1 19900405; EP 0197981 A1 19861022; EP 0197981 B1 19900228

DOCDB simple family (application)

US 8501812 W 19850919; AU 4960285 A 19850919; BR 8506959 A 19850919; CA 491617 A 19850926; DE 3576174 T 19850919; EP 85904921 A 19850919