GB640729A - Anti-corrosive paint or varnish - Google Patents

Abstract

Amine, e.g. diethanolamine, methylamine, diethylamine, triethanolamine, or morpholine, salts or ammonium salts of nitrophenol, nitrocresol or nitronaphthol are added in a minor amount, e.g. 0.2-2.0 per cent, as anti-corrosive ingredients in paints or varnishes comprising binders, e.g. nitrocellulose, coumarone, urea-formaldehyde, phenol-aldehyde or alkyd resins, in an organic solvent, e.g. benzene, alcohols and their esters, chlorinated hydrocarbons, acetone, cyclohexane or silicanes. Drying agents, e.g. naphthenates or salts of linoleic or resin acids, plasticizers, e.g. phthalyl esters or tri-cresyl phosphate, pigments, e.g. white lead, zinc white or chromates of aluminium, copper or zinc, and organic dyes, may also be present. The salts may be dissolved directly in the paint or in a diluting agent, e.g. turpentine, heavy benzine, xylene, or water, or mechanically dispersed in a finely-divided state.ALSO:Amine, e.g. diethanolamine, methylamine, diethylamine, triethanolamine, or morpholine salts or ammonium salts of nitrophenol, nitrocresol or nitronaphthol are added in minor amount, e.g. 0.2-2 per cent, as anti-corrosive ingredients to paints or varnishes comprising binders, e.g. chlorinated rubber, shellac, dammar or copal resins, in an organic solvent, e.g. benzene, alcohols and their esters, chlorinated hydrocarbons, acetone, cyclohexane or silicones. Drying agents, e.g. naphthenates, or salts of linoleic or resin acids, plasticizers, e.g. phthalyl esters or tricresyl phosphate, pigments, e.g. white lead, zinc white, and chromates of aluminium, copper, zinc, and organic dyes may also be present. The salts may be dissolved directly in the paint, or in a diluting agent, e.g. turpentine, heavy benzine, xylene, or water, or mechanically dispersed in a finely-divided state.