Henkel Ag & Company, Kgaa

Juergen Noglich

Heinz-Dieter Soldanski

Thomas Moeller

Stefanie Kuech

Michael Dreja

Bernd-Dieter Holdt

Alexander Ditze

Bernhard Guckenbiehl

Erik Brueckner

Stefan Karsten

Marc Benoit

A cleaning agent for hard surfaces, which is made of a combination of at least one alkyl pyrrolidone, at least one glycol ether, and at least one anionic surfactant, exhibits very good cleaning power and cleaning speed for dirt of different kinds and can be utilized particularly for cleaning glass.

Glass cleaner comprising an alkylpyrrolidone, glycol ether, and anionic surfactant

Cleaner for hard surfaces, especially glass. Application of the cleaner containing a colloidal silica sol results in a modification of the streaming potential of the surface by &#x2212;5 to &#x2212;50 mV. The cleaner can be used to hydrophilize and clean hard surfaces by contact.

Method for cleaning hard surfaces using a composition comprising a colloidal silica sol

The invention relates to liquid multiphase, essentially CFC-free detergents with at least two continuous phases. The detergents have at least one aqueous phase (I) and a non-aqueous liquid phase (II) that is immiscible with phase (I), and can be temporarily transformed into an emulsion by shaking. They also contain an anionic and/or non-ionic surfactant and are suitable for use in a method for cleaning hard surfaces, especially glass. According to said method, the inventive detergent is shaken to produce the temporary emulsion and applied to the surface to be cleaned in quantities of 1.5 to 10 g per m{circumflex over ( )}2, preferably by spraying. The surface is then cleaned, optionally by wiping with a soft, absorbent object.

Liquid multiphase detergents

Naphthalene sulfonic acid/formaldehyde condensates may be used (i) in a liquid multiphase cleaning composition with at least two continuous phases which contains at least one aqueous phase I and a non-aqueous liquid phase II immiscible with this aqueous phase and which can be temporarily converted into an emulsion by shaking, (ii) in a composition for cleaning hard surfaces to reduce the rain effect and/or the film effect, (iii) in a process for reducing the rain effect and/or the film effect on a hard surface treated with a liquid cleaning composition, the surface being treated with a liquid cleaning composition in concentrated or diluted form containing at least one naphthalene sulfonic acid/formaldehyde condensate and (iv) in a process for cleaning hard surfaces, more particularly glass, in which a cleaning composition according to (i) is temporarily converted into an emulsion by shaking, applied to the surface to be cleaned, preferably by spraying, in quantities of 1.5 to 10 g per m and the surface is then optionally cleaned by wiping with a soft absorbent material.

Multiphase cleaning composition containing naphthalene sulfonic acid/formaldehyde condensate

Lignin sulfonates may be used (i) in a liquid multiphase cleaning composition with at least two continuous phases which contains at least one aqueous phase I and a non-aqueous liquid phase II immiscible with this aqueous phase and which can be temporarily converted into an emulsion by shaking, (ii) in a composition for cleaning hard surfaces to reduce the rain effect and/or the film effect and (iii) in a process for reducing the rain effect and/or the film effect on a hard surface treated with a liquid cleaning composition, the surface being treated with a liquid cleaning composition in concentrated or diluted form containing at least one lignin sulfonate and (iv) in a process for cleaning hard surfaces, more particularly glass, in which a cleaning composition according to (i) is temporarily converted into an emulsion by shaking, applied to the surface to be cleaned, preferably by spraying, in quantities of 1.5 to 10 g per m,and the surface is then optionally cleaned by wiping with a soft absorbent material.

Multiphase cleaning composition containing lignin sulfonate

Naphthalene sulfonic acid/formaldehyde condensates (i) may be used in a composition for cleaning hard surfaces to reduce the rain effect and/or the film effect, (ii) may be present in a cleaning composition for hard surfaces in combination with one or more other anionic and/or nonionic surfactants and (iii) may be used in a process for reducing the rain effect and/or the film effect on a hard surface treated with a liquid cleaning composition, the surface being treated with a liquid cleaning composition in concentrated or diluted form containing one or more naphthalene sulfonic acid/formaldehyde condensates.

Growing community of inventors

Duesseldorf, Germany

Juergen Noglich