Patent ID: 6221823
Filing Date: 2001-04-24
Classification: C11D

Abstract:
An aqueous hard surface cleaning and disinfecting composition which comprises:4-6% by weight of an acid sequestrant constituent which comprises citric acid and an acid selected from lactic, glycolic and tartaric acids;3-6% by weight of a mixture of hydrophobic and hydrophilic solvents where said hydrophobic solvent exhibits a solubility in water of from 0.0-20.0 ml per 100 ml of water, which comprises 50-99% wt. of said mixture of solvents and which is selected from the group: mineral spirits, tripropylene glycol n-butyl ether, propylene glycol phenyl ether, dipropylene glycol n-butyl ether, ethylene glycol phenyl ether, propylene glycol n-butyl ether, dipropylene glycol n-butyl ether, and mixtures thereof, and wherein said hydrophilic solvent comprises 1-50% wt. of said mixture of solvents, said hydrophilic solvent selected from the group: glycol methyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol n-propyl ether, ethylene glycol n-butyl ether, diethylene glycol n-butyl ether, diethylene glycol methyl ether, propylene glycol, ethylene glycol, isopropanol, ethanol, methanol, diethylene glycol monoethyl ether, ethylene glycol mono-butyl ether acetate, diethylene glycol monoethyl ether acetate, and mixtures thereof;1-4% wt. of a single constituent which exhibits both anionic surfactant and hydrotrope properties selected from the group: alkyl phenoxybenzene disulfonates and alkyl naphthalene sulfonates;0-20% by weight of one or more optional constituents; andthe balance to 100% by weight, waterwherein the aqueous hard surface cleaning and disinfecting composition exhibits a pH of 7.0 or less.