Stabilized brominated alkane solvent
AssigneeAlbemarle Corporation
InventorBurnell Lee
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Abstract
A stabilized solvent composition which is comprised of: a solvent portion which includes at least 90 wt % n-propyl bromide; and a 1,4-dioxane-free stabilizer system which includes 2,2-dialkoxypropane in which each alkoxy group independently contains up to 3 carbon atoms. The solvent composition is useful as a degreaser and cleaner in both cold and vapor cleaning systems.
Claims6
A stabilized solvent composition which is comprised of a solvent portion which includes at least 90 wt % n-propyl bromide and a 1,4-dioxane-free stabilizer system which consists essentially of 2.0-6.0 wt % 2,2-dialkoxypropane and at least one selected from the group consisting of about 0.045-1.0 wt % nitroalkane, about 0.045-1.0 wt % epoxide and about 0.045-1.0 wt % amine.
A process for cleaning an article which comprises immersing the article in a solvent composition comprised of a solvent portion which includes at least 90 wt % n-propyl bromide and a 1,4-dioxane-free stabilizer system which consists essentially of 2.0-6.0 wt % 2,2-dialkoxypropane and at least one selected from the group consisting of about 0.045-1.0 wt % nitroalkane, about 0.045-1.0 wt % epoxide and about 0.045-1.0 wt % amine.
A process for cleaning an article which comprises exposing the article to the vapor emanating from a boiling body of a solvent composition comprised of a solvent portion which includes at least 90 wt % n-propyl bromide and a 1,4-dioxane-free stabilizer system which consists essentially of 2.0-6.0 wt % 2,2-dialkoxypropane and at least one selected from the group consisting of about 0.045-1.0 wt % nitroalkane, about 0.045-1.0 wt % epoxide and about 0.045-1.0 wt % amine.
Dependencies are inferred from the claim text.