Basf Aktiengesellschaft

Daimler-benz Ag

Gerhard Welzel

Richard Bung

Karl Gans

Rolf Fikentscher

Werner Streit

Gerold Schreyer

Klaus Glaser

Franz Schmidt

Martin Laun

Hans J Wolf

Dieter Distler

Rolf Helber

Klaus Haas

Emil Schaefer

Francis Doncker

In the case of a shearing element that can be used as an engine mounting in a motor vehicle, an elastic damping body that is developed in the way of a rubber--metal mounting and a shearing unit are provided in a mechanical parallel connection for supporting the engine at the body. It is their purpose to avoid, in the natural-vibration range of the mounting--mass system, an excessive increase of the amplitudes in the case of a resonance.

Mounting arrangement for vehicle engine and the like

A dispersion, having highly dilatant flow, of a carboxyl-containing copolymer of monoolefinically unsaturated monomers, wherein the temperature dependence of the critical shearing rate is greatly reduced by incorporation of from 0.1 to 30% by weight of oxides, hydroxides, carbonates and/or water soluble salts of monovalent or divalent metals.

Highly dilatant polymer dispersions with reduced temperature dependence

An apparatus for the preparation of bonding fibers, especially for the production of nonwovens by a wet-lay process, wherein a polymer dispersion, containing an anionic or nonionic dispersant, and an aqueous solution, containing a dissolved cationic precipitant, are combined to cause fiber formation from precipitated polymer particles, which apparatus includes a feed funnel spaced above the bottom of a homogenization vessel with both a nozzle for introducing the polymer dispersion and a metering device for the precipitant, which are so arranged and aimed into the funnel that in co-operation with a stirrer a vortex is produced in a column of liquid in the feed funnel, and fibers are formed and broken up while passing through a turbulence chamber, located at the bottom of the funnel, and a gap into a homogenization chamber.

Apparatus for the preparation of bonding fibers from polymer dispersions

A process for the repeatable production of shaped particles of various geometries from polymer dispersions, melts or solutions, wherein first particles are expelled by means of a rotating disk and are introduced while still liquid, in a radially outward direction, into a liquid precipitant or fixant film and the particles are thereby coagulated or fixed and also given an additional structure and are transported away from the point of introduction.

Reproducible production of shaped articles of various geometries from

A process for the preparation of copolymer dispersions having a narrow particle size distribution, and exhibiting dilatant flow over a broad range of concentrations, by emulsion copolymerization of from 1 to 10% by weight, based on total monomers, of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids with other monoolefinically unsaturated monomers and with from 0 to 5% by weight of polyolefinically unsaturated monomers in the presence of conventional emulsifiers, dispersants and polymerization initiators, and in the presence or absence of regulators, wherein the monomers are copolymerized in aqueous emulsion, with simultaneous agglomeration but only partial fusion of the initially formed polymer particles, at a temperature near the glass transition temperature of the copolymer formed, and thereafter

Preparation of copolymer dispersions having a narrow particle size

Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a block copolymer of the formula: ##STR1## x is from 50 to 250, y is from 20 to 100, the ratio of x to y is from 6.5:1 to 1:15, with compounds having at least four basic NH groups in a weight ratio of from 0.8:1 to 30:1. The products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.

Water-soluble, crosslinked nitrogen-containing condensation products

Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a chlorohydrin-ether of the formula ##STR1## where x is from 50 to 250, y is from 20 to 100, the ratio x:y is from 6.1:1 to 1:15 and n is from 0.5 to 5, with ethyleneimine in the weight ratio of from 1:10.1 to 1:0.8; the condensation products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.

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Mannheim, Germany

Gerhard Welzel