Basf Aktiengesellschaft

Albert Hettche

Wolfgang Trieselt

Stefan Weiss

Walter Denzinger

Heinrich Hartmann

Wolfram Dietsche

Manfred Patsch

Walter Ziegler

Christos Vamvakaris

Hans-Juergen Raubenheimer

Rolf Schneider

Hubert Trauth

Erhard Klahr

Dieter Oeder

Johannes Perner

Ludwig Schuster

Horst Scheuermann

Peter Lechtken

Wolf-Dieter Balzer

Dieter Stoeckigt

Klaus Lorenz

Werner Liedy

Richard Mueller

Leo Ehemann

Dieter Hannu Boeckh

Alfred Oftring

Knut Oppenlaender

Wolfgang Reuther

Rainer Dyllick-Brenzinger

Juergen Hambrecht

Alexander Aumueller

Roland Ettl

Franz Brandstetter

Axel Nissen

Norbert Greif

Hubert Meixner

Paul Diessel

Herbert Helfert

Elisabeth Kappes

Rudi Widder

Ulrich Steuerle

Walter Rebafka

Robert Heinz

Michael Horner

Walter Disteldorf

Alfred Krause

Klaus Glaser

Helmut Wolf

Thomas Wehlage

Guenther Gotsmann

Horst Trapp

Hartmut Kanter

Karl Hennig

Peter Miederer

Karlheinz Messmer

Karl Sommer

Manfred Daeuble

Dieter Schneider

Lutz Goethlich

Guenter Hatzmann

Elmar Getto

Ulrich Kaluza

Juergen Ciprian

Wolfgang Eisfeld

Werner Schuster

Reinhard Muller

Peter Kueppers

Otto Kuehneweg

Method of producing water-soluble condensates and addition products

Use of heterocyclic compounds as activators for inorganic peroxy

Maleimide/.alpha.-olefin copolymers are composed of structural units I ##STR1## where R.sup.1 is a tetramethylpiperidinyl radical of the formula II ##STR2## R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, formyl, C.sub.2 -C.sub.6 -alkanoyl, C.sub.1 -C.sub.12 -alkoxy, C.sub.5 - or C.sub.6 -cycloalkoxy, cyanomethyl, 2-hydroxyethyl, benzyl or a radical of the formula --CR.sup.4 =CH--CO--OR.sup.5, R.sup.4 is hydrogen, C.sub.1 -C.sub.6 -alkyl or a radical of the formula --CO--OR.sup.5, and R.sup.5 is C.sub.5 -C.sub.18 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.18 -aralkyl, phenyl or tolyl, and up to 8 mol %, based on II, of R.sup.1 may furthermore be hydrogen, C.sub.1 -C.sub.22 -alkyl or C.sub.5 -C.sub.8 -cycloalkyl, and R.sup.2 is a mixture of C.sub.14 -C.sub.28 -alkyl groups, where two of these alkyl groups, which may differ by no more than two carbon atoms, each account for at least 30% of this mixture, having an average molecular weight of from 1,000 to 50,000. The copolymers described are suitable as light stabilizers and stabilizers for organic material, in particular plastics and coatings.

Maleimide/.alpha.-olefin copolymers and their use as light stabilizers

A process for the preparation of copolymers which contain monoethylenically unsaturated monocarboxylic acids and dicarboxylic acids as copolymerized monomer units, which comprises copolymerizing

Preparation of copolymers of monoethylenically unsaturated

Oxidized polyethylenes useful as lubricants in the extrusion of polyvinyl chloride are prepared by oxidation of finely divided polyethylene of high density at elevated temperatures with an oxidation gas of air and/or oxygen, the polyethylene used containing from 0.015 to 0.5% by weight of a free radical former organic compound in admixture and being contacted per hour with an oxidation gas which per kilogram of polyethylene contains from 30 to 600, in particular from 80 to 300, mg of ozone, with or without a reduced pressure treatment at elevated temperatures after the oxidation.

Oxidized polyethylene and use as lubricant for polyvinylchloride

Organic polyacids are prepared from monomeric monofunctional acids, such as acrylic acid or methacrylic acid and monomers without an acid group, with or without dicarboxylic acids or their anhydrides, by continuous free radical mass copolymerization under superatmospheric pressure at from 200.degree. to 400.degree. C., followed, if desired, by neutralization of the polyacids obtained. The polyacids obtained by the novel process are useful as phosphate substitutes and scale inhibitors in detergents and cleansers.

Polymeric organic acids, their preparation and their use in detergents

Oxidized polyethylenes useful as water-emulsifiable waxes and as lubricants in the extrusion of polyvinyl chloride are prepared by oxidizing finely divided polyethylene of high density at elevated temperatures with an oxidation gas of air and/or oxygen, the oxidation gas supplied per hour containing not less the 100 mg of ozone per kilogram of polyethylene, by performing the oxidiation in a paddle dryer and passing the oxidation gas into the free gas space above the polyethylene, the temperature in the paddly dryer preferably being continuously adjusted to from 1.degree. to 2.degree. C. below the softening point of the polyethylene.

Oxidation of polyethylene

Foam is controlled in the sugar industry and yeast industry by a process in which oxyalkylation products of the formula I

Foam control in the sugar industry and in the yeast industry

An aqueous wax dispersion for floor care contains a mixture of an aqueous secondary dispersion of an ethylene copolymer wax, having a specific MFI, and an aqueous primary dispersion together with plasticizers, leveling agents and water, and an ethylene copolymer wax in the form of an aqueous secondary dispersion is used for floor emulsions.

Floor polish emulsions based on ethylene copolymer

Copolymers which contain, as copolymerized monomer units, monoethylenically unsaturated mono- and dicarboxylic acids are prepared by a process in which

Preparation of copolymers of monoethylenically unsaturated mono- and

Washing agents contain, as additives for inhibiting redeposition and promoting the primary washing action, homopolymers of acrylic acid and of methacrylic acid, copolymers of acrylic acid and methacrylic acid and copolymers which contain, as essential components,

Washing agents containing, as additives, carboxyl-containing copolymers

Pulverulent and/or granular additives for pulverulent detergents and cleaning agents, consisting of

Additives for detergents and cleaning agents

A granular bleaching activator for use in a detergent or bleach, which has particles which have a size of from 0.5 to 3 mm and are composed of

Granular bleaching activator

A liquid preservative for plated or unplated metal surfaces and surfaces of coatings, in the form of an aqueous wax dispersion which contains a special ethylene/acrylic acid copolymer wax, consisting of from 8 to 25% by weight of acrylic acid units and from 92 to 75% by weight of ethylene units, in partially or completely neutralized form, if appropriate as a mixture with waxes based on polyethylene oxidation products and/or hydrocarbon waxes, the use of this special ethylene/acrylic acid copolymer wax for preserving plated or unplated metal surfaces and surfaces of coatings, and a process for temporarily preserving metal surfaces and surfaces of coatings.

Aqueous wax dispersions as preservatives for metal surfaces and surfaces

Stabilizers consisting of (a) 2,5,7,8-tetramethyl-2-(2'-stearyloxyethyl)-chroman and (b) glyceryl stearate, glyceryl hydroxystearate, partial esters of stearic acid with condensates of glycerol and trimethylolpropane, triglyceryl stearate and/or tetraglyceryl stearate, with or without further conventional additives, the weight ratio of (a) to (b) being from 10:1 to 1:10, give improved stabilization to discoloration and superior stability during processing when used in plastics such as polyethylene or polypropylene.

Stabilizers

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Hessheim, Germany

Albert Hettche