Bayer Aktiengesellschaft

Hans-Joachim Meiners

Johannes Blahak

Hans Hubner

Manfred Schmidt

Werner Rasshofer

Gerhard Grogler

Peter Haas

Otto Ganster

Jurgen Schwindt

Andreas Ruckes

Eduard Mayer

Klaus Seel

Kurt Findeisen

Klaus Konig

Kuno Wagner

Walter Schafer

Hermann Perrey

Armand De Montigny

Werner Mormann

Heinrich Boden

Hans-Georg Wussow

Wolfgang Reichmann

Hans-Dieter Ruprecht

Karl-Heinz Dorner

Klaus Seyfried

Jurgen Ick

Rolf Baumhakel

The present invention is directed to a RIM process wherein an isocyanate-terminated prepolymer is reacted with one or more isocyanate-reactive components which contian inorganic fillers. The improvement resides in including an acidc group containing compound with the isocyanate reactive components.

Process for the manufacture of flexible molded parts

Polyamines containing primary amino groups are made by hydrolyzing an isocyanate with water in the presence of a solvent which is a carboxylic acid amide. The solvent must be used in a quantity of at least 10% by weight solvent based on 100% by weight of isocyanate. The weight ratio of solvent to water must be from 3 to 200. A homogeneous phase is maintained during the hydrolysis which is carried out at temperatures of from 20.degree. to 210.degree. C. A not incorporable basic and/or metal catalyst particularly alkali metal hydroxides may be employed. The polyamines produced by this process are particularly useful for the production of polyurethanes.

Hydrolysis process for polyamines

The present invention relates to a process for the production of an optionally cellular elastomeric molded article having a compact surface and based on a polyurea elastomer containing urethane groups which is the reaction product of

Process for the preparation of polyurea elastomers containing urethane

A process for the preparation of optionally cellular elastic moldings by the reaction injection molding technique in closed molds, in which isocyanate prepolymers A) based on

The present invention relates to a process for the production of polyurethane-urea or polyurea-based microcellular of foam moldings by reacting a polyisocyanate component containing aromatically bound isocyanate groups with an isocyanate-reactive component containing at least one compound which has at least three aliphatic ether groups and aliphatically bound isocyanate-reactive groups and wherein a portion of the aliphatically bound-reactive groups are amino groups which have been converted to ammonium carbamate, carbonate or bicarbonate groups. The present invention also relates to the compounds containing aliphatic ether groups and ammonium carbamate, carbonate or bicarbonate groups, optionally in admixture with compounds containing unmodified amino groups or other known isocyanate-reactive compounds.

Process for the production of microcellular or foamed moldings and

The present invention is directed to a process for the production of polyurea-based microcellular moldings comprising reacting

Process for the production of microcellular moldings from diisocyanate

The instant invention is directed to a process for the production of vulcanized elastomers containing urethane groups by casting, comprising:

Process for the production of tires comprising vulcanized elastomers

The instant invention is directed to a process for the production of polyurethane urea elastomers having a gross density of more than 200 kg/m.sup.3 comprising: casting a reaction mixture of

Process for the production of elastic, optionally cellular, polyurethane

A process for making cold-setting, non-shrinkable polyurethane foam resins using a mixture of silicon compounds of the formula:

Process for the production of cold-curing foam resins which contain

This invention relates to a process for the production of polyurethane resins (more particularly foam resins) in which linear polyamines containing at least four tertiary nitrogen atoms are used as catalysts. The compounds correspond to the general formula: ##STR1## wherein the groups R, which may be the same or different, represent methyl or ethyl groups; m represents an integer of from 2 to 7; and the integers n, which may be the same or different, represent 2 or 3.

Polyurethanes made with linear polyamines

This invention relates to novel halogen-free flame retarding agents and a process in which they are used in the production of polyurethanes. These compounds are represented by the general formula: ##STR1## wherein: R.sub.1 represents C.sub.1 -C.sub.5 alkylene groups which may be branched,

Polyurethanes produced from phosphorus containing flame retarding agents

This invention relates to novel flame retarding agents and processes in which they are used in the production of polyurethanes. These compounds are represented by the general formula: ##STR1## wherein: A and L, which are identical or different, represent optionally branched C.sub.1 -C.sub.17 -alkyl groups or -OR groups wherein R represents an optionally branched C.sub.1 -C.sub.8 -alkyl group, and

The invention relates to a process for preparing cold-hardening foams containing urethane groups using as an emulsifier, sulphonamide compounds of the formula: ##STR1## wherein R represents an alkyl, chloroalkyl, cycloalkyl radical having from 8 to 30 carbon atoms, or an alkaryl radical having from 10 to 30 carbon atoms,

Process for cold-hardening polyurethane foams using sulfonamide

This invention relates to novel flame retarding agents and processes in which they are used in the production of polyurethanes. These compounds are represented by the general formula: ##STR1## wherein: A and B, which are identical or different, represent optionally branched C.sub.1 -C.sub.17 -alkyl groups or --OR groups wherein R represents an optionally branched C.sub.1 -C.sub.8 -alkyl group, and

Phosphorus containing flame retarding agents which are reactive with

The present invention relates to a process for the production of polyurethane foams by reacting

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Leverkusen, Germany

Hans-Joachim Meiners