Bayer Aktiengesellschaft

Herbert Bartl

Christian Lindner

Heinrich Alberts

Carlhans Suling

Helmut Waniczek

Dieter Freitag

Klaus Konig

Manfred Schreckenberg

Klaus Schuster

Josef Witte

Dietrich Hardt

Fritz Mietzsch

Bruno Bomer

Karl-Heinz Ott

Karl-Heinz Reichert

Gerhard Hohmann

Karl-Heinz Aleksander Starzewski

Richard Prinz

Winfried Fischer

Ludwig Trabert

Karl-Heinz Aleksander Ostoja-Starzewski

Gunter Schmidt-Kastner

Erich Rauenbusch

Ludwig Mott

Fritz Huper

Georgios Vasiliou

Dieter Wittmann

Karl-Erwin Piejko

Hugo Vernaleken

Hans Rudolph

Jan Mazanek

Volker Serini

Walter Uerdingen

Adolf Schmidt

Ernst Roos

Gerd Sylvester

Gunter Sackmann

Joachim Thormer

Jens Herwig

Aziz El-Sayed

Wolfgang Oberkirch

Kurt P Meurer

Christian Leuschke

Otto Billinger

Dieter Kuhlmann

Hansjochen Schulz-Walz

Christian Ohm

Joachim Priemer

Salah Elabd Elghani

Ulrich Steffen

Karola Brudermanns

Raoul Resz

HansJochen Schulz-Walz

Leonhard Goerden

Karl Nothen

Klaus Kruger

Hugo Zimmermann

Georg Frank

Klaus Riebel

Branched low-pressure polyethylenes are prepared by oligomerization of ethylene on a nickel-containing catalyst and polymerization of the oligomers obtained, if appropriate in the presence of ethylene, on a chromium-containing catalyst.

Process for the preparation of branched low-pressure polyethylene, new

Ethylene/vinyl acetate copolymers containing very high molecular weight components and having a reduced tendency to tackiness may be obtained by a further addition of ethylene during the process of solution polymerization at a moderate pressure.

Process for the preparation of ethylene/vinyl acetate copolymers with

The invention relates to new graft polymers based on elastomers as the graft base and grafted-on vinyl monomers, their preparation and blend thereof with polyamides.

Graft polymers and blends thereof with polyamides

The object of the invention is the use of ethylene-vinyl acetate-copolymers produced by emulsion polymerization and containing unipolymerized acids, for the modification of polyvinyl chloride.

Use of special ethylene-vinyl acetate-copolymers for the modification of

The present invention relates to copolymers containing ethylene monomer units and .alpha.-cyanacrylate monomer units and processes for their production.

Copolymers containing ethylene and .alpha.-cyanoacrylates

In a reagent strip for the dry-chemical detection of a component of an aqueous sample solution comprising a detection reagent in a membrane, the improvement wherein the membrane is an essentially anhydrous, but water-absorbing, membrane for a reagent substrate in an analytical agent for the dry-chemical detection of a component of an aqueous sample solution, comprising at least one hydrophobic film-forming, water insoluble organic polymer in which at least one hydrophilic organic polymer is dispersed as discrete particles. The reagent can be incorporated into the membrane when produced or can later be applied as by impregnation. The membrane performs as well as or better than multi-layer strips.

Water-absorbing, essentially water-free membrane for reagent substrates

This invention relates to graft polymers produced from:

Graft polymers

Nickel compounds which can be produced by reacting a nickel(O) compound or a nickel compound, which can be converted in situ into a nickel(O) compound, with an adduct or a mixture of maleic acid anhydride and a tertiary phosphine, optionally with a compound of the formula (I) ##STR1## wherein X represents O, NR.sup.4 or ##STR2## and n represents zero or one, and optionally with an organoaluminium compound, are suitable for the homo-and copolymerization of 1-olefins and for the polymerization of acetylene.

Organic nickel compounds, the production thereof and the use thereof as

The new copolymers based on maleic anhydride and .alpha.,.beta.-unsaturated compounds contain, as bivalent structural units,

Copolymers based on maleic anhydride and .alpha., .beta.-unsaturated

Olefins such as ethylene can be polymerized with a catalyst which comprises nickel compounds obtained by reacting a nickel-(O) compound or a nickel compound which may be converted in situ into a nickel-(O) compound with an adduct or a mixture of a quinoid compound and a tertiary phosphine and with a compound corresponding to the following general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkenyl, C.sub.6 -C.sub.12 aryl or C.sub.3 -C.sub.8 cycloalkyl optionally substituted by halogen, hydroxy, C.sub.1 -C.sub.20 alkoxy, nitro or C.sub.6 -C.sub.12 aryloxy; also C.sub.6 -C.sub.12 aryl-C.sub.1 -C.sub.20 alkyl, C.sub.6 -C.sub.12 aryl-C.sub.2 -C.sub.20 alkenyl, C.sub.1 -C.sub.20 alkyl-C.sub.6 -C.sub.12 aryl, C.sub.1 -C.sub.20 alkyl-C.sub.3 -C.sub.8 cycloalkyl and C.sub.6 -C.sub.12 aryl-C.sub.3 -C.sub.8 cycloalkyl, di-C.sub.1 -C.sub.4 alkylamino, optionally substituted phenoxy or alkoxy; R.sup.4, R.sup.5 and R.sup.6 represent hydrogen, silyl, halogen, cyano or R.sup.1 and

Organic nickel compounds, production and use thereof as catalysts in the

The invention relates to the use of grafted ethylene-vinylacetate copolymers (EVA-copolymers) for the production of hotmelt adhesives.

Use of grafted ethylene-vinylacetate copolymers for the production of

The present invention relates to new thermoplastic contact adhesives. They have high heat resistance and bond strength.

Thermoplastic contact adhesives containing epoxide plasticizers

Thermoplastic moulding compositions consisting of from 1 to 99% by weight of at least one cellulose ester or cellulose mixed ester, from 99 to 1% by weight of an aliphatic polyester or polyether containing carbonate groups and, optionally, standard auxiliaries and additives.

Cellulose ester-aliphatic polycarbonate thermoplastic moulding

Anhydride-group- or carboxyl-group-containing graft copolymers of vinyl esters and other suitable monomers on polysaccharide esters of (A) a polysaccharide ester of aliphatic C.sub.1 -C.sub.5 -mono-carboxylic acids as the graft substrate and (B) a grafted-on monomer mixture of (a) a vinyl ester of a C.sub.1 -C.sub.18 -monocarboxylic acid and (b) maleic acid anhydride and/or semiesters of maleic acid and/or fumaric acid with aliphatic C.sub.1 -C.sub.14 -monoalcohols, the ratio by weight of (A) to (B) being from 1:0.1 to 1:2 and the molar ratio of (a) to (b) being from 1:0.5 to 1:3, and a process for producing these graft copolymers.

Process for the production of anhydride-group- or

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Odenthal, Germany

Herbert Bartl