Patent ID: 6176942
Filing Date: 2001-01-23
Classification: C11D,C23G

Abstract:
A solvent mixture for use in a vapor degreasing system, said solvent mixture comprising:(a) about 85 wt. % to less than about 96.5 wt. % n-propyl bromide;(b) about 3.5 wt. % to less than about 15 wt. % of a mixture of low boiling solvents, said mixture of low boiling solvents comprising about 0.5 wt. % to about 1 wt. % nitromethane, based on the solvent mixture, about 0.5 wt. % to about 1 wt. % 1,2-butylene oxide based on the solvent mixture, and the balance of said mixture of low boiling solvents being 1,3-dioxolane; and(c) an effective amount of up to about 5 wt. % of at least one additive selected from the group consisting of sec-butanol, ethanol, and methanol, provided that sec-butanol comprises 0 wt. % to about 3 wt. % of said solvent mixture.