Bayer Aktiengesellschaft

Other

Dsm N.v.

Walter Uerdingen

Christian Lindner

Josef Pedain

Karl-Heinz Ott

Hans-Eberhard Braese

Kuno Wagner

Heinrich Heine

Hanns P Muller

Manfred Bock

Helmut Hurnik

Dieter Freitag

Kurt Findeisen

Burkhard Kohler

Helmut Waniczek

Wolfgang Wehnert

Wolfgang Wellner

Bernhard Hess

Gerhard Mennicken

Dimitrios Kerimis

Richard Juffa

Karola Brudermanns

Georg Wawra

Manfred Schmidt

Carlhans Suling

Klaus Reinking

Uwe Claussen

Hans-Jurgen Kress

Herbert Bartl

Hans-Detlef Heinz

Jurgen Hocker

Joachim Wank

Peter Hohlein

Werner Waldenrath

Frank Wingler

Manfred Schonfelder

Manfred Hajek

Bert Brassat

Bernd Wahle

Joachim Franke

Klaus Kraft

Karl-Ludwig Noble

Werner Kloker

Ludwig Trabert

Jurgen Hinz

Helmut Schmid

Lutz Schrader

Bernd Peltzer

Hans-Jurgen Muller

Hans H Schulz

Manfred Blazejak

Klaus Prater

Fritz Ehrhard

Freidrich Blomeyer, Deceased

Wilfried Orywol

Heinz Eichner

Walter Schafer

A process in which a dye film is cast, the film is peeled off from the substrate and stretched monoaxially, the stretched film is applied to a glass film, and the resultant laminate is conditioned at elevated temperature gives composite materials which are highly suitable for the production of optoelectronic instruments.

Composite material

Particulate graft polymers composed of a core (a) of cross-linked diene rubber, a first envelope (b) of a cross-linked acrylate rubber, a second envelope (c) of a copolymer of resin-forming monomers and polyallyl monomers having at least three allyl groups in the molecule, and a third envelope (d) of a copolymer or homopolymer of resin forming monomers.

Thermoplastic moulding compositions with high notched impact strength

The use of molding compositions based on unsaturated polyester resins containing specific reactive groups and of sheet metals with a specially selected coating results in sheet metal/duroplast composite elements having excellent adhesion.

Process for the production of sheet metal/duroplast composite elements

The invention relates to blends of polyarylene sulfides, epoxides, anhydrides, glass fibers and optionally other fillers. The blends are distinguished by good mechanical properties.

Blends of polyarylene sulfides, epoxides, anhydrides, glass fibers and

The invention relates to mixtures of polyarylene sulphides, heterocyclic nitryoaryloxy compounds and optionally other additives. The mixtures are distinguished by good mechanical properties.

Mixtures of polyarylene sulphides, glass fibres and heterocyclic

The invention relates to blends of polyarylene sulfides, epoxides, glass fibers, optionally anhydride-containing polymers and optionally other additives. They are distinguished by good mechanical properties.

Blends of polyarylene sulfides, epoxides, glass fibers, optionally

A 0.3 to 2 mm thick multilayer composite material comprising the following layers:

Multilayer composite material

Reaction compositions of selected make-up result after curing in non-meltable polymers of high mechanical stability and low water uptake. Owing to the low birefringence of the cured products, these compositions are highly suitable for preparing carrier materials for optically and magnetically readable and/or writable data carriers.

Curable reaction compositions for producing data carriers

The invention relates to a process for the production of sulphonic acid ester group-containing polyhydroxyl compounds having an average hydroxyl functionality of from 1.5 to 4, comprising reacting

Polyhydroxyl compounds containing a sulfonic acid ester group

Molded articles are produced in a two-stage process. In the first stage, an organic polyisocyanate is reacted with an organic compound containing at least two epoxide groups (NCO: epoxide equivalent ratio of 1.2:1 to 500:1) in the presence of a tertiary amine catalyst. This reaction is stopped when no more than 65% of the isocyanate groups have reacted by adding an alkylating sulfonic acid alkyl ester of methyl iodide and/or of dimethyl sulfate in an amount equivalent to the amount of tertiary amine catalyst present. A latent catalyst capable of being activated by heat is subsequently added to the intermediate product and the resultant mixture is heated in a mold to complete the crosslinking of the intermediate product and to form the molded article.

Two stage process for the production of molded articles

A thermosetting reactive resin mixture is made from an organic polyisocyanate, a polyepoxide and a heat activatable catalyst. The catalyst is a tertiary or quaternary ammonium salt of an alkylating or acidic ester of an organic phosphonic acid or of phosphoric acid. The polyisocyanate and polyepoxide are used in quantities such that the equivalent ratio of isocyanate groups to epoxide groups is from 1.2:1 to 70:1. These mixtures may be heated to produce plastics having excellent heat resistance, moisture and abrasion resistance, low dielectric losses and excellent molding properties.

Thermosetting reactive resin mixtures and a process for the production

Urea-modified bubble-free moldings based on polyisocyanate polyaddition products are made by reacting (a) an organic polyisocyanate with (b) a polyhydroxyl compound and/or polyepoxide in the presence of (c) a water chain extender in the form of an aqueous alkali aluminosilicate or an aqueous alkali-alkaline earth aluminosilicate of the zeolite type in a mold using cast resin technology. The reaction components are used in quantities such that the equivalent ratio of isocyanate to hydroxyl and/or epoxide groups is from 1.1:1 to 6.1. The chain extender is used in a quantity such that the amount of water is at least equivalent to the excess of isocyanate. These moldings may be made by a one-shot or a two-shot process. These moldings are characterized by better mechanical properties such as tensile strength and elongation than prior art moldings.

Process for the production of non-foamed moldings

The invention relates to epxoy resins obtained by reaction of epichlorohydrin with selected mixtures of phenols for the production of thermosetting and cold-hardening moldings, coating compositions and adhesive compositions.

Special epoxy resins

This invention relates to heat-hardenable epoxide resin mixtures of at least one 1,2-polyepoxide having more than one 1,2-epoxide group per molecule, at least one cyclic carboxylic acid anhydride and at least one ammonium phosphonate or ammonium phosphate as a hardening catalyst, as well as further optional auxiliaries.

Heat-hardenable epoxide resin mixtures

Moulding compounds consisting of a mixture of (A) from 99.99 to 60 parts, by weight, of a polyoxymethylene; (B) from 0 to 40 parts, by weight, of an elastomer having a softening temperature below the crystallite melting point of polyoxymethylene (A) and a freezing point below 0.degree. C.; and (C) from 0.01 to 40 parts, by weight, of an aliphatic, rubber-like, high molecular weight adipate-carbonate mixed ester.

Thermoplastic moulding compounds based on polyoxymethylene and polymeric

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Leverkusen, Germany

Walter Uerdingen