Bayer Aktiengesellschaft

Messerschmitt-bolkow-blohm Gesellschaft MIT Beschrankter Haftung

Bayer Aktiengesellschaft-bayerwerk

Eckart Reese

Joachim Wank

Rudolf Binsack

Hugo Vernaleken

Manfred Schmidt

Werner Waldenrath

Rudolph Binsack

Dieter Freitag

Ludwig Bottenbruch

Erhard Tresper

Gerhard Darsow

Wolfgang Cohnen

Frank Gerald Kleiner

Rolf Kubens

Hans-Leo Weber

Heinrich Haupt

Klaus Wangermann

Hans Kaloff

Paul Schiller

Manfred Grundmeier

Hans-Josef Fausten

Karl-Heinz Egert

The invention relates to new injection-moulded articles made from metal/plastic composite systems containing a polyurethane adhesive (intermediate) layer, and a process for the preparation thereof.

Injection-moulded article and process for the production thereof

An invention relates to new injection-moulded articles made from metal/plastic composite systems containing a polyurethane adhesive (intermediate) layer, and a process for the preparation thereof.

Injection-moulded article and a process for the production thereof

Mixtures of (A) from 50 to 90% by weight of aromatic polycarbonate and (B) from 10 to 50% by weight of polybutylene terephthalate, the percent by weight being based on the total of (A) and (B) are used to produce novel films.

Polycarbonate/polybutylene terephthalate film

The present invention relates to polycarbonate articles and films characterized by their antistatic properties comprising polycarbonate resin and alkali, or alkali earth, salts of specific aromatic sulfonic acids, specific aromatic phosphonic acids or aromatic partial phosphoric acid esters.

Internal antistatic agents for polycarbonates and for polycarbonate films

Laminated plastic sheets composed of a first layer of a film of an aromatic hermoplastic polycarbonate or polyarylsulfone and a second layer of a film of a thermoplastic copolymer of tetrafluoroethylene and of a completely or partially fluorinated vinyl alkyl ether or vinylalkane and an interlayer of a polyurethane adhesive between the film layers to secure the film layers to one another. Also disclosed are methods for producing the laminated plastic sheet and articles formed therefrom. Such sheets and articles possess improved printability, thermo-formability, resistance to ignition and produce minimal smoke on burning.

Laminated plastic, its production and its use

Mixtures of polyaryl sulphones and polycarbonates solutions made stable by the introduction of solubilizing agents are used to prepare cast films of improved properties.

Process for the production of cast films from polyaryl

The invention is directed to compositions comprising halogen-free aromatic polycarbonates and halogen-free aromatic polyphosphonates suitable for producing films of improved flame resistance and to processes for their preparation.

Polycarbonate/polyphosphonate thermoplastic composition

Modified polyaryl-sulphones comprise one or more polyaryl-sulphones and one or more ammonium salts or metal salts of organic sulphonic acids, preferably 0.01 to 5% by weight, relative to the total weight of polyaryl-sulphone plus salt of sulphonic acid, of the one or more organic sulphonic acid salts. These simply produced modified polyaryl-sulphones do not suffer from embrittlement under load, and susceptability to stress-cracking under the influence of solvents and of solutions of unsaturated polyester resins experienced by unmodified polyaryl-sulphones. The modified polyaryl-sulphones are particularly suitable for the production of containers, tubes, sheets and films.

Polyaryl-sulphones containing an ammonium or metal salt of an organic

The present invention relates to polycarbonate films, and in particular extruded films and cast films, but preferably extruded films, which are characterized in that they contain about 0.01% to 2% by weight of a NH.sub.4 salt, alkali metal salt or alkaline earth metal salt of a perhalogenoalkanesulphonic acid, preferably a perfluoroalkanesulphonic acid.

Polycarbonate films of low flammability and improved stress crack

Flame-resistant polyhydantoin sheets or films containing from 0.01 to 2% by weight of a salt of an organic sulphonic acid.

Flameproof polyhydantoin films

The present invention relates to mixtures comprising about 60% by weight to 5% by weight of aromatic polycarbonates which have a Mw between about 60,000 and 120,000 (component A) and about 40% by weight to 95% by weight of aromatic polycarbonates which have a Mw between about 28,000 and 40,000 (component B), as well as to processes for their preparation and their use for the production of shaped articles. The melt which can be prepared from the mixtures according to the invention has a high stability and the films obtainable therefrom have a high resistance towards stress cracking.

Polycarbonate mixtures which can be processed as thermoplastics

The present invention is concerned with mixtures of branched polyaryl-sulphone and aromatic polycarbonates having Mw in excess of about 60,000. These mixtures are particularly suitable for the production of extruded film although the polycarbonate itself is of too high a molecular weight to be conveniently extruded by itself. These films display superior stress-cracking properties and resistance to unsaturated polyester resins compared to similar blends with lower molecular weight polycarbonates.

Branched polyaryl-sulphone/polycarbonate mixtures and their use for the

A polycarbonate film having improved flame resistance and good stress-corrosion-cracking resistance is prepared from a solution of a mixture of a low molecular weight polycarbonate containing at least about 5% by weight halogen and a higher molecular weight polycarbonate prepared from bisphenol containing at least 90 mol percent bisphenol A. The novel film can be used to advantage for self-supporting electrical insulating films.

Polycarbonate film

Heat sealable temperature-resistant sheet material wherein a solution of a partially fluorinated high-molecular weight aliphatic hydrocarbon with a molecular weight of 1,000 to 500,000 which is solid at room temperature in a solvent mixture of

Heat sealable sheet materials

A branched, high molecular-weight polyaryl-ether sulphone which is the reaction product of approximately equimolar amounts of an aromatic dialkali metal bishydroxylate and a bis-(halogen-aryl) compound, whose aryl nuclei are linked by sulphonyl groups, and about 0.01 to about 2 mol %, based on the bishydroxylate or bis-(4-halogenaryl) compound, of an aromatic compound having at least three aromatically linked alkali metal hydroxylate substitutents and/or of a halogenaryl compound having at least three aryl-linked halogen substituents and which is capable of substitution under the reaction conditions of polyaryl-ether sulphone manufacture.

Growing community of inventors

Dormagen, Germany

Eckart Reese