EP 0151114 B1 19900404 - ACID BASED VARIABLE VISCOSITY COMPOSITIONS SUCH AS CORROSION AND GREASE REMOVERS AND POLISHERS
Title (en)
ACID BASED VARIABLE VISCOSITY COMPOSITIONS SUCH AS CORROSION AND GREASE REMOVERS AND POLISHERS
Publication
Application
Priority
US 8301014 W 19830706
Abstract (en)
[origin: WO8500379A1] An improved, highly penetrating rust remover and/or degreaser composition for metallic surfaces, which is chemically inhibited to substantially prevent oxidation-reduction reactions with a metal substrate and limit the action of the composition to a chemical attack on corrosion. The composition is preferably a single phase dispersion and includes respective quantities of an acid such as hydrochloric acid and phosphoric acid, an organic compound containing a nitrogen, oxygen or sulfur atom such as N-(2-hydroxyethyl) oxazolidine, an alcohol or other organic solvent for grease removal, water and one or more emulsifiers (e.g., a derivative of hydrogenated tallow) for stabilizing and lowering the surface tension of the resultant composition. The compositions may be formulated as liquids or with a viscosity control agent such as a polylmer of vinyl pyrrolidone to give a paste-like consistency permitting easy use thereof on vertical surfaces. In other forms, the compositions hereof may include a mild abrasive such as activated silica gel.
IPC 1-7
IPC 8 full level
C11D 7/08 (2006.01); C23G 1/02 (2006.01); C23G 5/06 (2006.01)
CPC (source: EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8500379 A1 19850131; DE 3381414 D1 19900510; EP 0151114 A1 19850814; EP 0151114 A4 19851205; EP 0151114 B1 19900404; JP S60501817 A 19851024
DOCDB simple family (application)
US 8301014 W 19830706; DE 3381414 T 19830706; EP 83902583 A 19830706; JP 50270583 A 19830706