Aqueous hard surface cleaners based on terpenes and fatty acid derivatives

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United States of America Patent

PATENT NO 9758751
APP PUB NO 20150098745A1
SERIAL NO

14395090

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
STEPAN COMPANY22 W FRONTAGE ROAD NORTHFIELD IL 60093 UNITED STATES OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brown, Aaron Chicago, US 54 271
Gorman, Wilma Park Ridge, US 8 14
Masters, Ronald A Glenview, US 32 239

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