Bayer Aktiengesellschaft

Agfa-gevaert Ag

Metzeler Kautschuk Gmbh

John W Goossens

Wolfgang Podszun

Carlhans Suling

Herman J Uytterhoeven

Dieter Freitag

Ludwig Bottenbruch

Volker Serini

Josef Witte

Wolfgang Grape

Gunter Oppermann

Wolfgang Richter

Gunther Hoffarth

Walter De Winter

Werner Obrecht

Hans-Joachim Traenckner

Uwe Hucks

Zsolt Szentivanyi

Volker Hartel

Michael Sperzel

Wolfgang Kremer

Helmut Waniczek

Joachim Thormer

Oswald Lockhoff

Hans Schulze

Walter Simm

Wolfgang Wirth

Gunther Penners

Klaus G Stunkel

Holger Ohst

Helmut Brunner

Heinz J Niessen

Jean Mirza

Gu/ Nter Oppermann

Volker H/a/ Rtel

Wolfgang Padszun

Jurgen Pabst

Heinz Kronke

The invention relates to new N-glycosylamides of the general formula I ##STR1## in which R.sup.1 denotes a saturated alkyl radical or a singly, doubly or triply unsaturated alkenyl radical having up to 50 carbon atoms,

Substituted N-glycosylamides, process for their preparation, and their

The invention relates to copolymers containing 0.01 to 35 mole-% relative to the total monomer composition, of one or more polymerized perfluoroalkyl group-containing monomer units, 55 to 99.99 mole-% of one or more polymerized N-vinylamide monomer units, and 0 to 10 mole-% of one or more further comonomers, a process for the preparation of the copolymers, and their use as emulsifiers and dispersants in aqueous systems.

Copolymer made from n-vinylamides and perfluoroalkyl group-containing,

This invention relates to fabric or cord coated as an individual filament or as the finished carrier material with hydrogenated nitrile rubber and the laminated materials prepared therefrom with the vulcanized rubber. It, furthermore, relates to a latex of said hydrogenated nitrile rubber.

Laminated materials of pretreated fibre material and vulcanization

The present invention relates to new macroemulsions which contain

Biocidal macroemulsions containing polyvinyl alcohol

Improved electrostatographic suspension developers contain a pigment coated with polycyanoacrylate. Wherein the polycyanoacrylate comprises an inner shell on a pigment dispersed in an electrically insulating carrier liquid having a volume resistance of at least 10.sup.9 ohm.cm and a dielectric constant below 3 and the pigment has an additional shell of a copolymer of

Liquid electrostatographic suspension developer comprises pigment coated

Electroviscous fluids are disclosed which are composed of aluminum silicates particles in an electrically non-conductive liquid and a suitable dispersing agent. The atomic ratio of Al/Si on the surface of the aluminum silicate lies within the range of 0.15 to 0.80.

Electroviscous fluids

An electroviscous fluid comprising more than 25% by weight of silica gel with a water content of 1 to 15% by weight, a non-conductive oily phase dispersion medium, 1 to 30% by weight of one or more polymers soluble in the dispersion medium, the weight percentage being based on the water-containing silica gel, and the polymers having a molecular weight in the range of from 5.times.10.sup.3 to 10.sup.6 and containing 0.1 to 10% by weight of N and/or OH and 25 to 83% by weight of C.sub.4 to C.sub.24 -alkyl groups. Such electroviscous fluids are useful for transmitting powerful forces by means of a low electronic output, for example, in hydraulic valves and shock absorbers.

Electrostatographic suspension developer having a block copolymer

The electroviscous suspension is based on a mixture of aqueous silica gel with silicone oil as the liquid phase to which a dispersant is added. The dispersant consists of amino functional or silicon-functional polysiloxanes having a molecular weight above 800. The concentration of the dispersant is from 1 to 30% by weight and preferably from 5 to 20% by weight, based on the silica gel particles. Electroviscous suspensions such as these are distinguished by the fact that they are highly compatible with elastomeric materials, non-sedimenting, non-inflammable and physiologically acceptable. In addition, they are heat- and freeze-resistant over a wide temperature range and are largely unaffected by temperature and pressure in their viscosity.

Electroviscous liquids

An electrostatographic suspension developer contains a dispersed pigment and a copolymer of

Electrostatographic suspension developer and a process for its

An electrostatographic suspension developer contains, in an electrically insulating carrier liquid with a volume resistivity of at least 10.sup.9 Ohm. cm and a dielectric constant of below 3, a dispersed pigment and a polymer of basic secondary or tertiary amino group-containing monomers, the amino groups of which are completely or partially neutralized with a Bronsted acid, which contains at least one hydrocarbon radical having from 6 to 24 carbon atoms, and optionally further comonomers.

Electrostatographic suspension developer and a process for the

The suspension developer contains, in an electrically-insulating carrier liquid, a pigment and a block copolymer comprising a block of polymerized vinylaromatic compounds and a block of polymerized dienes the double bonds of which have been partially or completely reacted with alkyl mercaptans. The developer is distinguished by its high dispersion stability, small particle size and uniform particle size distribution.

Electrostatographic suspension developer of block copolymer reacted with

The suspension developer contains as a toner polymer-sheathed pigment particles in an electrically insulating carrier liquid. The sheath of the pigment particles is formed by precipitation polymerization from various (meth)acrylates, a cross-linker and, optionally, a vinyl or vinylidene monomer. The developer has an outstanding dispersion stability which does not change during use or storage.

Electrostatographic suspension developer and process for the production

Diphasic mixtures obtained from the synthesis of aromatic polyesters by the diphasic interface process may be separated into an aqueous phase and an organic phase by the addition of selected compounds.

Separation of diphasic mixtures containing aromatic polyesters

The present invention relates to a process for working up alkaline two-phase mixtures which have been obtained in the synthesis of polycarbonates by the two-phase boundary process, characterized in that for the separation of the alkaline two-phase mixture into an organic phase and an aqueous phase, the mixture is supplied with shearing energy and/or added are one or more cationic emulsifying agents and/or dispersing agents and/or in that, for the separation of the acidified two-phase mixture into an organic phase and an aqueous phase, the mixture is supplied with shearing energy and/or added are one or more cationic emulsifying agents and/or dispersing agents and/or in that the organic phase which was separated off after the acidification is washed with water to which one or more water-soluble, organic anionic compounds have been added.

Growing community of inventors

Colonge, Germany

John W Goossens