Biodegradable dry cleaning solvent
AssigneeRynex Holdings Ltd.
InventorsWilliam A. Hayday, Stephen P. Bates
Life of this patent
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Abstract
A method for dry-cleaning garments which comprises treating them with an azeotropic solvent of propylene glycol tertiary-butyl ether and water.
Claims10
A composition for dry-cleaning garments comprising from about 82%, by weight, to about 90% by weight of propylene glycol tertiary-butyl ether, a fabric softener and water.
A method of dry-cleaning garments, which comprises treating the garments in a composition comprising propylene glycol tertiary-butyl ether and water for a period of time sufficient to effect dry-cleaning.
A method of cleaning scoured and milled wool, which comprises treating the scoured and milled wool with a composition comprised of from about 82%, by weight, to about 90%, by weight, of propylene glycol tertiary-butyl ether and water to affect cleaning.
Dependencies are inferred from the claim text.