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US 2008/0287337 A1Published application
Solvent composition for cleaning
AssigneeKaneko Chemical Co., Ltd.
InventorAkiyasu KANEKO
Life of this patent
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Abstract
At least one kind of solvent selected from among nitromethane, nitroethane, d-limonene and 3-methoxybutyl acetate is mixed to 1,1,1,3,3-pentafluorobutane to such an extent as not imparting any flammability. Also, propylene glycol based solvent(s) is mixed to 1,1,1,3,3-pentafluorobutane to such an extent as not imparting any flammability.
Claims14
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A method of cleaning an object, comprising:
- preparing a solvent composition for cleaning including
- (a) 10 through 80 wt % of 1,1,1,3,3-pentafluorobutane, and
- (c) 20 through 90 wt % of one kind or at least two kinds of propylene glycol based solvents;
- placing said solvent composition in contact with said object;
- and
- cleaning said object with said solvent composition.
3 more elements
A method of cleaning an object, comprising:
- preparing a solvent composition for cleaning including
- (a) 10 through 70 wt % of 1,1,1,3,3-pentafluorobutane, and
- (c) 30 through 90 wt % of one kind or at least two kinds of propylene glycol based solvents;
- placing said solvent composition in contact with said object;
- and
- cleaning said object with said solvent composition.
3 more elements
A method of cleaning set forth in claim 11, wherein:
- said solvent composition further includes at least one kind of solvent selected from among nitromethane, nitroethane, 3-methoxybutyl acetate, 3-methoxy-1-butanol, and d-limonene, the total percentage by weight of the constituents of said solvent composition amounting to 100 wt %.
Dependencies are inferred from the claim text.