Aqueous hard surface cleaners based on terpenes and fatty acid derivatives
First Claim
1. An aqueous hard surface cleaner consisting of:
- (a) 75 to 99 wt. % of water;
(b) 0.1 to 5 wt. % of a monoterpene selected from the group consisting of limonene, α
-pinene, μ
-pinene, carene, α
-terpinene, γ
-terpinene, α
-terpineol, camphene, p-cymene, myrcene, and mixtures thereof;
(c) 0.1 to 5 wt. % of a C10-C14 N,N-dimethyl amide; and
(d) 0.1 to 5 wt. % of one or more surfactants selected from the group consisting of anionic, cationic, nonionic, and amphoteric surfactants;
wherein the anionic surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, olefin sulfonates, α
-sulfonated alkyl esters, α
-sulfonated alkyl carboxylates, alkyl aryl sulfonates, sulfoacetates, sulfosuccinates, alkane sulfonates, and alkylphenol alkoxylate sulfates, and mixtures thereof;
(e) 0.1 to 5 wt. % of an alkali metal carbonate;
(f) optionally, 0.5 to 25 wt. % of a water-soluble organic solvent; and
(g) optionally, one or more additives selected from the group consisting of builders, buffers, abrasives, electrolytes, bleaching agents, dyes, foaming control agents, antimicrobial agents, thickeners, pigments, gloss enhancers, enzymes, silicones, and hydrotropes.
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Accused Products
Abstract
Aqueous hard surface cleaner compositions useful for removing permanent ink are disclosed. The compositions comprise 75 to 99 wt. % of water; 0.1 to 5 wt. % of a monoterpene; 0.1 to 5 wt. % of a C10-C17 fatty acid derivative; and 0.1 to 5 wt. % of one or more surfactants. The fatty acid derivative is selected from N,N-dialkyl amides, N,N-dialkyl esteramines, and N,N-dialkyl amidoamines. Preferably, a base such as sodium carbonate or monoethanolamine is also included. The invention includes concentrates comprising the non-aqueous components recited above, as well as other applications for the cleaners and concentrates such as graffiti removers and permanent ink erasers. The combination of a monoterpene and certain fatty acid derivatives, especially fatty N,N-dialkyl amides, unexpectedly enables even dilute aqueous compositions to rapidly decolorize black permanent marker from hard, non-porous surfaces.
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Citations
20 Claims
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1. An aqueous hard surface cleaner consisting of:
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(a) 75 to 99 wt. % of water; (b) 0.1 to 5 wt. % of a monoterpene selected from the group consisting of limonene, α
-pinene, μ
-pinene, carene, α
-terpinene, γ
-terpinene, α
-terpineol, camphene, p-cymene, myrcene, and mixtures thereof;(c) 0.1 to 5 wt. % of a C10-C14 N,N-dimethyl amide; and (d) 0.1 to 5 wt. % of one or more surfactants selected from the group consisting of anionic, cationic, nonionic, and amphoteric surfactants; wherein the anionic surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, olefin sulfonates, α
-sulfonated alkyl esters, α
-sulfonated alkyl carboxylates, alkyl aryl sulfonates, sulfoacetates, sulfosuccinates, alkane sulfonates, and alkylphenol alkoxylate sulfates, and mixtures thereof;(e) 0.1 to 5 wt. % of an alkali metal carbonate; (f) optionally, 0.5 to 25 wt. % of a water-soluble organic solvent; and (g) optionally, one or more additives selected from the group consisting of builders, buffers, abrasives, electrolytes, bleaching agents, dyes, foaming control agents, antimicrobial agents, thickeners, pigments, gloss enhancers, enzymes, silicones, and hydrotropes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13, 15, 17, 19)
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9. A dilutable hard-surface cleaner concentrate comprising:
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(a) 1 to 50 wt. % of a monoterpene selected from the group consisting of limonene, α
-pinene, μ
-pinene, carene, α
-terpinene, γ
-terpinene, α
-terpineol, camphene, p-cymene, myrcene, and mixtures thereof;(b) 1 to 50 wt. % of a C10-C14 N,N-dimethyl amide; and (c) 1 to 50 wt. % of one or more surfactants selected from the group consisting of anionic, cationic, nonionic, and amphoteric surfactants; wherein the anionic surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, olefin sulfonates, α
-sulfonated alkyl esters, α
-sulfonated alkyl carboxylates, alkyl aryl sulfonates, sulfoacetates, sulfosuccinates, alkane sulfonates, and alkylphenol alkoxylate sulfates, and mixtures thereof;(d) 0.1 to 5 wt. % of an alkali metal carbonate; (e) optionally, 0.5 to 25 wt. % of a water-soluble organic solvent; and (f) optionally, one or more additives selected from the group consisting of builders, buffers, abrasives, electrolytes, bleaching agents, dyes, foaming control agents, antimicrobial agents, thickeners, pigments, gloss enhancers, enzymes, silicones, and hydrotropes. - View Dependent Claims (10, 11, 12, 14, 16, 18, 20)
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Specification