Accession Number : ADD009591

Title :   Method and Composition for Cleaning Metal Surfaces with a Film-Forming Composition.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Panayappan,Ramanathan ; Venezky,David L

Report Date : 20 Apr 1982

Pagination or Media Count : 4

Abstract : A method of cleaning metal surfaces, particularly irregularly shaped metal surfaces such as exist on a ship, wherein a thick aqueous solution of a water soluble polymer, preferably polyvinlpyrrolidone (PVP), and a chelating agent, is applied to a rusty metal surface as a thick paste, which gradually hardens into an encapsulating film during cleaning. After cleaning is complete, the film and the corrosion products are easily peeled from the clean surface and can be disposed of as solid waste.

Descriptors :   *Patents, *Metals, *Surfaces, Cleaning compounds, Water soluble materials, Corrosion, Chelating agents, Polyvinylidenes, Solid wastes, Production, Pyrrolidines, Thickness, Films, Iron compounds, Oxides

Subject Categories : Solvents, Cleaners, and Abrasives

Distribution Statement : APPROVED FOR PUBLIC RELEASE