Global Patent Index - EP 0652305 B1

EP 0652305 B1 19990407 - Corrosion inhibiting method for closed cooling systems

Title (en)

Corrosion inhibiting method for closed cooling systems

Title (de)

Verfahren zur korossionsinhibierung fur geschlossenen Kühlkreislaufer.

Title (fr)

Procédé d'inhibition de la corrosion pour des systèmes de refroidissement fermés

Publication

EP 0652305 B1 19990407 (EN)

Application

EP 94117381 A 19941103

Priority

US 14555693 A 19931104

Abstract (en)

[origin: EP0652305A1] Novel closed cooling system corrosion preventatives are disclosed. The ingredients include sorbitol, an alkali metal gluconate, and borax. Optionally, yellow metal corrosion inhibitors such as tolyltriazole may be incorporated into the formulation. The mixture is particularly effective in high heat flux and low conductivity closed cooling systems.

IPC 1-7

C23F 11/12; C23F 11/08

IPC 8 full level

C23F 11/08 (2006.01); C23F 11/12 (2006.01); C23F 11/14 (2006.01); C23F 11/16 (2006.01); C23F 11/18 (2006.01); C23F 14/02 (2006.01)

CPC (source: EP)

C23F 11/08 (2013.01); C23F 11/12 (2013.01)

Citation (examination)

  • US 4303456 A 19811201 - SCHMUCK GUENTER, et al
  • Surface and Coatings Technology,Vol.34,no.4 pages 537-547,June'88 Elsevier Sequoia(NL)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0652305 A1 19950510; EP 0652305 B1 19990407; BR 9404329 A 19950704; CA 2134908 A1 19950505; DE 69417685 D1 19990512; DE 69417685 T2 19990916; JP 3383441 B2 20030304; JP H07258871 A 19951009

DOCDB simple family (application)

EP 94117381 A 19941103; BR 9404329 A 19941103; CA 2134908 A 19941102; DE 69417685 T 19941103; JP 27115994 A 19941104