Bayer Aktiengesellschaft

Bayer Corporation

Bayer Materialscience Ag

Bayer Aktiengsellschaft

Bayer Intellectual Property Gmbh

Covestro Deutschland Ag

Norbert Eisen

Reinhard Halpaap

Peter Haas

Torsten Heinemann

Wilhelm Lamberts

Gerhard Heilig

Karl Werner Dietrich

Walter Klan

James Thompson-Colon

Dennis McCullough

Lutz-Peter Godthardt

Wolfgang Henning

Jens Krause

Michael Merkel

Wolfgang Grimm

Geza Avar

Hans-Dieter Ruprecht

Stephan Reiter

Hubert Ehbing

Stephan Schleiermacher

Reinhold Dederichs

Birgit Meyer Zu Berstenhorst

Harry Staratschek

Frank Otto

Walter Kl&auml;n

Robert Zollner

Friedhelm Faehling

Daniel Seidlitz

Herbert Vogl

Lutz Liebegott

Frauke Kühn

Gregor Murlowski

Uwe Pfeuffer

Günter Gansen

Sebastian Schlecht

Peter Orywol

Dieter Gaumitz

The invention relates to antistatic and electrically conductive polyurethanes containing conductive carbon blacks and carbon fibers, and the use thereof.

Antistatic and electrically conductive polyurethanes

The invention provides a process for the production of flexible to semi-rigid polyurethane shaped articles with a compacted edge zone of given hardness and a significantly more flexible cell core, so-called integral foams, in which non-combustible mixtures of fluoroalkanes which comprise 1,1,1,3,3-pentafluorobutane (R 365mfc) are employed as physical blowing agents.

Method for producing soft to semi-rigid polyurethane integral foamed materials

The description relates to production of rigid foamed plastics containing urethane groups, by use of a blowing-agent mixture containing 5 to 50 parts by weight of C and/or C alkanes and 50 to 95 parts by weight of cyclopentane. There is also a description of use of the thus-produced rigid foamed plastics as composite components or for foam filling of cavities in refrigerator construction.

Process for preparing rigid foamed materials containing urethane groups

Process for the producing of hard polyurethane foams with low heat conductivity

The invention provides a process for preparing flexible to semi-rigid polyurethane moulded items with compacted edge zones with given hardness and a much more flexible cellular core, so-called integral foams, in which physical blowing agents from the set comprising C,hydrocarbons are used.

Method for producing soft to medium-hard structural polyurethane foams

Method of producing hydrocarbon-expanded rigid polyurethane foams

Process for producing hydrocarbon-blown hard polyurethane foams

Process for preparing rigid polyurethane foams

Process for the production of hard polyurethane foams

The invention relates to a process for insulating pipes by applying a rigid polyurethane foam as an insulating layer and optionally an external top coating by the rotational casting process. The rigid polyurethane foam is obtained by a) an aromatic polyisocyanate, b) an organic polyhydroxyl compound, c) an aliphatic, cycloaliphatic or aromatic polyamine and/or polyimine having a molecular weight of from 32 to 1,000 as the cross linking agent in the presence d) a blowing agent, and optionally in the presence of e) known auxiliary substances and additives and in the presence of f) one or more compounds having a molecular weight of from about 166 to about 1,000 and being of the general formula ##STR1## wherein n represents an integer between 2 and 9, preferably 2 and 3,

Process for insulating pipes using polyurethane rigid foams by the

Process for producing rigid polyurethane foams

A process for insulating pipes comprises applying at least one layer of a polyisocyanurate plastic and then at least one layer of rigid polyurethane foam to a steel pipe. The foam is covered with an outer layer.

Process for insulating pipes

Composite moldings of at least one layer of an ABS plastic and at least one layer of a thermoplastic polyurethane having a Shore D hardness of &gt;50, a layer of coupling agent optionally being present between the ABS layer and the thermoplastic polyurethane layer.

Laminates of graft polymer and thermoplastic polyurethane

Rotational molding process for insulating pipes

Refrigeration units having internal parts containing a rigid polyurethane foam formed without the use of perhalogenated fluoro-chlorohydrocarbons are produced by applying a coating to the internal walls of the part in which back-foaming will take place, pouring a foam forming reaction mixture into the cavity of the part in which the internal walls have been coated and allowing the foam to form and set. The coating applied to the internal walls of the part in which back foaming is to be carried out is selected from one-component chemically cross-linking lacquers, two-component chemically cross-linking lacquers and lacquers based on aqueous polyurethane dispersions. The foam forming mixture generally includes a polyisocyanate, a polyisocyanate-reactive compound and a blowing agent. The blowing agent must include a partially halogenated hydrocarbon having at least one carbon-hydrogen bond and a boiling point in the range of from about -50.degree. to about 50.degree. C.

Process for the production of back foamed internal parts for

Growing community of inventors

Kö'ln, Germany

Norbert Eisen