Graffiti remover which comprises an active solvent, a secondary solvent, an emollient and a particulate filler and method for its use
AssigneeDecora, Incorporated
InventorJohn Ralph Smith
Life of this patent
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Abstract
This invention provides graffiti removers for removing permanent ink stains from painted surfaces. The graffiti removers include an active solvent for dissolving the stains, which are organic in nature, an optional secondary solvent for concentrated attack on the stain without being adversely affected by dilution with water, an emollient for maintaining a uniform dispersion of particulates in the remover and on the graffiti-stained painted surfaces, and an amorphous, particulate, mildly abrasive filler for imbibing the solvents, the filler being selected to permit the slow release of the active solvent.
Claims7
A graffiti remover having hydrophobic characteristics, low chemical reactivity and low oil absorption, which comprises:
- (a) from about 6.5 to about 30.0 wt. % of an active oxygenated organic halogen- and sulfur-free solvent comprising a mixture of short chain aliphatic diacid esters;
- (b) from about 0.0 to about 30 wt. % of a secondary solvent comprising dimethyl sulfoxide;
- (c) from about 5.0 to about 50 wt % of an emollient comprising oleic acid;
- and
- (d) from about 25.0 to about 50.0 wt. % of an amorphous particulate filler comprising amorphous kaolin.
A graffiti remover which comprises:
- (a) from about 11.0 to about 13.0 wt. % of an active solvent which consists essentially of a mixture of short chain aliphatic diacid esters;
- (b) from about 11.0 to about 13.0 wt. % of a secondary solvent which consists essentially of dimethyl sulfoxide;
- (c) from about 32.0 to about 36.0 wt. % of an emollient which consists essentially of oleic acid;
- and
- (d) from about 38.0 to about 42.0 wt. % of an amorphous filler which consists essentially of amorphous kaolin.
A method which comprises removing permanent ink graffiti from a painted surface without substantially altering the surface by treating the surface with a graffiti remover which comprises:
- (a) from about 6.5 to about 30.0 wt. % of an active oxygenated organic halogen- and sulfur-free solvent comprising an admixture of dimethyl succinate, dimethyl glutarate and dimethyl adipate;
- (b) from about 0.0 to about 30 wt. % of a secondary solvent comprising dimethyl sulfoxide;
- (c) from about 5.0 to about 50 wt % of an emollient comprising oleic acid;
- and
- (d) from about 25.0 to about 50.0 wt. % of an amorphous particulate filler comprising kaolin clay.
Dependencies are inferred from the claim text.