Global Patent Index - EP 0143051 A3

EP 0143051 A3 19850731 - PROCESS FOR REMOVING GANGUE FROM METALLIC PARTS

Title (en)

PROCESS FOR REMOVING GANGUE FROM METALLIC PARTS

Publication

EP 0143051 A3 19850731 (FR)

Application

EP 84402330 A 19841115

Priority

FR 8318747 A 19831124

Abstract (en)

[origin: EP0143051A2] 1. A process for removing gangue from a metallic piece of archaeology, in particular a piece of archaeology from the sea, characterised in that the piece is treated in an aqueous bath containing 8 to 40 grams of OH**- ions/I, under a cathodic polarization, while maintaining this piece for a sufficient time to obtain at least a partial detachment of the gangue from the piece, then the piece is withdrawn from the bath and the gangue is separated from the piece.

IPC 1-7

C25F 1/00

IPC 8 full level

C25F 1/00 (2006.01)

CPC (source: EP)

C25F 1/00 (2013.01)

Citation (search report)

  • [A] GB 505273 A 19390501 - JOHN GALBRAITH QUIROS WORLEDGE, et al
  • [A] CHEMICAL ABSTRACTS, vol. 87, no. 19, 7 novembre 1977, page 498, no. 151016g, Columbus, Ohio, US; G. GENIN: "Corrosion, cleaning, and protection of artistic structures. Ancient bronzes: analysis, treatment, preservation" & REV. SOC. R. BELGE ING. IND. 1977, (2), 72-7

Designated contracting state (EPC)

BE GB IT NL

DOCDB simple family (publication)

EP 0143051 A2 19850529; EP 0143051 A3 19850731; EP 0143051 B1 19870603; EG 16691 A 19890330; ES 537851 A0 19850916; ES 8507189 A1 19850916; FR 2555616 A1 19850531; FR 2555616 B1 19860516; GR 81024 B 19850321; TR 21915 A 19851101; YU 198884 A 19870630; YU 45679 B 19920720

DOCDB simple family (application)

EP 84402330 A 19841115; EG 71884 A 19841124; ES 537851 A 19841122; FR 8318747 A 19831124; GR 840181024 A 19841122; TR 2191584 A 19841123; YU 198884 A 19841123