US 9,758,751 B2 · Aqueous hard surface cleaners based on terpenes and fatty acid derivatives

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.

Claims18

Dependent claims

An aqueous hard surface cleaner consisting of:

(a) 75 to 99 wt. % of water;
(b) 0.1 to 5 wt. % of lemon oil or pine oil,
(c) 0.1 to 5 wt. % of a monounsaturated 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.

7 more elements

Dependencies are inferred from the claim text.

Aqueous hard surface cleaners based on terpenes and fatty acid derivatives

Life of this patent

Aqueous hard surface cleaners based on terpenes and fatty acid derivatives

Life of this patent

Abstract

Claims18