Non-flammable ternary cleaning solvent
AssigneeIllinois Tool Works Inc.
InventorJames M. Fitzgerald
Life of this patent
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Abstract
A non-flammable ternary liquid cleaner is formulated from first, second and third solvents. The first solvent is a hydrofluorocarbon, the second solvent is a dichloroethylene and the third solvent is a hydrochlorofluorocarbon. The hydrochlorofluorocarbon imparts low flammability to the cleaner. The hydrofluorocarbon is present in a concentration of about 10 percent to about 80 percent by weight of the cleaner, the dichloroethylene is present in a concentration of about 10 percent to about 60 percent by weight of the cleaner and the hydrochlorofluorocarbon is present in a concentration of at about 10 percent to about 40 percent by weight of the cleaner. The third solvent is non-flammable and thus renders the ternary cleaner non-flammable.
Claims19
A non-flammable liquid cleaner, comprising:
- a first solvent being 1,1,1,3,3-pentafluorobutane;
- a second solvent being a dichloroethylene;
- a third solvent being a hydrochlorofluorocalbon having low flammability,
- wherein the 1,1,1,3,3-pentafluorobutane is present in a concentration of at about 10 percent to about 80 percent by weight of the cleaner, the second solvent is present in a concentration of about 10 percent to about 60 percent by weight of the cleaner and the third solvent is present in a concentration of at about 10 percent to about 40 percent by weight of the cleaner, and wherein the cleaner is non-flammable.
A non-flammable liquid cleaner, comprising:
- a first solvent being a hydrofluorocarbon;
- a second solvent being a dichloroethylene;
- a third solvent being 3,3-dichloro-1,1,1,2,2-pentafluoropropane and/or 1,3-dichloro-1,1,2,2,3-pentafluoropropane, and having low flammability,
- wherein the first solvent is present in a concentration of at about 10 percent to about 80 percent by weight of the cleaner, the second solvent is present in a concentration of about 10 percent to about 60 percent by weight of the cleaner and the third solvent is present in a concentration of at about 10 percent to about 40 percent by weight of the cleaner, and wherein the cleaner is non-flammable.
Dependencies are inferred from the claim text.