Henkel Kommanditgesellschaft Auf Aktien

Kenkel Kommanditgesellschaft Auf Aktien

Winfried Wichelhaus

Wolfgang Von Rybinski

Horst Upadek

Jan-Willem Brouwer

Helmut Endres

Horst-Dieter Speckmann

Karl-Heinz Gottwald

Lothar Pioch

Heinz Mueller

Claus-Peter Herold

Eva Kiewert

Peter Kuhm

Dieter Jung

Wolfgang Seiter

Christian Rossmann

Andreas Kunz

Wolfgang Lorenz

Hans Dolhaine

Gerald Schreiber

Wolfgang Krey

Bernd Schenzle

Claus-Peter Kurzendoerfer

Christine Schroder

Horst Fluechter

Werner Gruenewaelder

Margarete Schaefer

Stephan Van Tapavizca

Elman Wilms

Herbert Linsenbold

Conductive and weldable anti-corrosive compositions based on (blocked) polyurethane resins, epoxy resins, together with curing agents containing nitrogen and conductive extenders are suitable for coating metal surfaces, in particular sheet steel in the coil coating process. These compositions are distinguished by a low stoving temperature, a distinct reduction in white rust on galvanized sheet steel in the salt spray test and by an improvement in the adhesion of the organic coating on the metallic substrate. These coatings furthermore also achieve adequate corrosion protection with a thin chromium coating, preferably also in Cr-free pretreatment processes. Sheet metal coated in this manner may be spot welded using any conventional processes.

Conductive organic coatings

A process for pretreating surfaces made from steel, galvanised steel and/or aluminum and/or alloys thereof, wherein, in a first process stage, phosphating is performed using a low-nickel zinc phosphating solution; in a second process stage, the phosphated surfaces are post-rinsed using an aqueous solution which contains 0.001 to 10 g/l of lithium ions; copper ions and/or silver ions; and, in a third process stage, a low-lead cathodically depositable electrocoating lacquer is applied which contains no more than 0.05 wt. % of lead, relative to the dry solids content of the lacquer.

Process for phosphatizing, rerinsing and cathodic electro-dipcoating

A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution with a pH value of 3 to 7 which contains 0.001 to 10 g/l of one or more of the cations of Li, Cu and Ag.

Phosphating process with a metalliferous re-rinsing stage

Phosphating process with a copper-containing re-rinsing stage

Low-foam scouring powder

Synthetic swellable layer silicates corresponding to the following formula

Water-based drilling and well-servicing fluids with swellable, synthetic

A laundry pretreatment composition comprising an invertmicellar ternary mixed phase containing from 5 to 15% by weight of at least one anionic surfactant or from 25 to 45% by weight of at least one nonionic surfactant, and from 50 to 55% by weight of at least one cosurfactant in the presence of an anionic surfactant or from 35 to 50% by weight of at least one cosurfactant in the absence of anionic surfactant, and from 45 to 30% by weight of water in the presence of anionic surfactant and from 40 to 5% by weight of water in the absence of anionic surfactant.

Laundry pretreatment composition for oily and greasy soil

An agglomerate containing sodium sulfate and as layer silicate, a synthetic layer silicate which has a smectite-like crystal phase, increased contents of bound alkali metal and silicate and a distinctly reduced swelling power compared with pure smectites. The agglomerate can take up significant quantities of an additional liquid component in its pores, resulting in a free-flowing agglomerate which outwardly feels dry. This high adsorption capacity may be used, for example, to take up a liquid detergent component which may then be mixed in combination with powder-form or granular detergent components to form a free-flowing detergent composition.

Porous layer silicate/sodium sulfate agglomerate

A detergent composition containing a surfactant, builder, and a fabric softener component comprising one or more tertiary amines containing at least one long-chain alkyl or alkenyl group and a synthetic layer silicate having a smectite-like crystal phase and, compared with natural smectites, a reduced swelling power in water. The detergent composition provides good fabric softening effect and a good detergent effect.

Fabric-softening detergent

Detergent composition containing conventional surfactants and builders, a fabric-softening silicate of the smectite type, and a synthetic incrustation-inhibiting layer silicate having a smectite-like crystal phase and reduced swelling power in water by comparison with natural smectite. The composition provides a significant increase in the softening effect of the detergent on a fabric washed therewith.

This invention relates to a process for the filtration of liquors containing organic solvents in dry cleaning using natural and/or synthetic layered silicates prepared with one or more ammonium compounds corresponding to the following general formula

Process for filtering liquors used in dry cleaning

The present invention provides synthetic, finely divided water-insoluble layered silicates having a smectite-like crystal phase, with increased contents of bound alkali and silicate and a distinctly reduced swelling power in aqueous suspension relative to pure layered silicates of this type. The synthetic layered silicate of this invention has the following oxide summation formula

Layered silicates of limited swelling power, a process for their

The invention relates to alkaline cleaners containing two components A and B, component A being a strongly alkaline solution comprising mostly alkali metal hydroxides and employed in an excess, component B being a concentrate comprising an aqueous silicic acid dispersion containing anionic, nonionic or amphoteric tensides, builder substances, stabilizers and optionally inorganic mineral acids, complexing agents and/or preservatives. Component B contains, as an active ingredient, adjusted to a pH in the range of from 1 to 11, a silicic acid dispersion obtained in situ by treating an alkali metal silicate solution with a mineral acid or a gas reacting acidically in aqueous solution. The dispersions also contain stabilizers, tensides and builder substances. If desired, additional agents conventionally contained in cleaning concentrates may also be added. The invention also relates to processes for preparing such cleaners by treating an alkali metal silicate solution with a mineral acid or a gas reacting acidically in aqueous solution and adding tensides, stabilizers and builder substances thereto.

Two-component alkaline cleaning compositions and methods of preparing

Hollow, spherical bodies of solidified alkali metal silicates having the general formula

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Mettmann, Germany

Winfried Wichelhaus