Back to results
US 6,673,120 B2Granted
Dry cleaning solvents containing DPTB and other surfactants
AssigneeRynex Holdings Ltd.
InventorWilliam A. Hayday
Life of this patent
Estimating the term…
Abstract
A method for dry-cleaning garments which comprises treating the garments with a mixture of dipropylene glycol tertiary-butyl ether (DPTB) and water for a period of time sufficient to effect dry-cleaning, wherein the weight ratio of DPTB to water is at least 9:1.
Claims6
A composition for dry-cleaning garments comprising dipropylene glycol tertiary-butyl ether (DPTB), water and a second surfactant, wherein the weight ratio of DPTB to water is at least about 9:1.
Dependencies are inferred from the claim text.