Composition and method for cleaning and removing oleaginous materials from composites
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsEl Sayed Arafat, Dane Hanson, Raymond Meilunas
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Abstract
A non-aqueous solvent composition and method for cleaning and removing oleaginous materials such as hydraulic fluids from reinforced-fiber composites characterized as a cleaning composition free of ozone depletion materials, having a low vapor pressure, a flash point above 140° F., and consists essentially of cyclohexenes, isoparaffinic hydrocarbons, dearomatized hydrocarbons and corrosion inhibitors.
Claims19
A non-aqueous solvent composition for cleaning and removing oleaginous materials from reinforced fiber composites characterized as being free of ozone depletion materials, having a low vapor pressure and a flash point above 140° F. and consisting essentially of from about 1.0 to 3.0 parts by weight of cyclohexenes, from about 45 to 55 parts by weight of isoparaffinic hydrocarbons, from about 45 to 55 parts by weight of dearomatized hydrocarbons and from 0.0 to 5.0 parts by weight of corrosion inhibitors.
Process for cleaning and removing oleaginous materials from a reinforced-fiber composite which comprises applying an effective amount of a non-aqueous solvent composition on and into said fiber composite and subsequently removing the oleaginous materials and the non-aqueous solvent composition from the composite;
- said non-aqueous solvent composition consisting essentially of from about 1.0 to 3.0 parts by weight of cyclohexenes, from about 45 to 55 parts by weight of isoparaffinic hydrocarbons, from about 45 to 55 parts by weight of dearomatized hydrocarbons and from 0.0 to 3.0 parts by weight of corrosion inhibitors.
Process of cleaning and removing oleaginous materials from a reinforced-fiber composite which comprises removing the air from said composite, washing said composite with effective amounts of a non-aqueous solvent composition, consisting essentially of from about 1.0 to 3.0 parts by weight of cyclohexenes, from about 45 to 55 parts by weight of isoparaffinic hydrocarbons, from about 45 to 55 parts by weight of dearomatized hydrocarbons and from 0.0 to 3.0 parts by weight of corrosion inhibitors mixing said solvent composition with the oleaginous materials, removing the mixture of solvent composition and oleaginous materials from the fiber composite and subsequently drying the fiber composite in air.
Dependencies are inferred from the claim text.