Patent ID: 6277799
Filing Date: 2001-08-21
Classification: C11D,H05K

Abstract:
An aqueous cleaning composition for removing paste residue from a component comprising: at least one water soluble salt of a hydroxy carboxylic acid, water, a surface active agent and a member selected from the group consisting of organic and inorganic base, wherein said surface active agent is selected from the group consisting of biodegradable surfactant based on primary alcohol ethoxylate, alkylpolyglycosides based on polysaccharide chemistry, polyoxypropylene-polyoxyethylene block co-polymers, and combination thereof, biodegradable ethoxylated alcohol sulfates, ethoxylated alkylphenol sulfates and sulfonates, and mixtures thereof, alkylarylpolyether of the type octylphenoxy-polyethoxyethanol, nonylphenylether polyethoxylates, amphoteric surfactants of the type alkylated carboxyalkyl, tertiary amines represented by the formula R--N(CH.sub.2 CH.sub.2 COOxy).sub.2, where x=H, and y=a member selected from the group consisting of Na, K, (CH3).sub.4 N.sup.+ (tetramethylammonium radical), and betaine derivatives.