Roehm Gmbh & Co Kg

Basf Aktiengesellschaft

Evonik Roehm Gmbh

Rohm Gmbh Chemische Fabrik

Roehm Gmbh

Klaus Hofmann

Uwe Numrich

Heinz Vetter

Michael Meier-Kaiser

Thomas Pfaff

Peter Kaube

Roger Hugh Emerson

Horst Schmidt

Gerhard Heinz

Eckhard M Koch

Hans Lorenz

Hermann Buchert

Wolfgang Eberle

Peter R Szigeti

Uwe Jacobsen

Otto Diroll

Gunther Schreyer

An impact resistant provided PMMA moulding material according to DE 195 44 563 is process into a surface-hardened film which is highly glossy, essentially free of gel bodies and can be processed in the 'in-mould-film-decoration' method. The melted mass is generated by means of an extruder and fed to the inventive glazing rolls via a flexible lip nozzle, said rolls being configured in order to generate an especially high locking pressure in the roll slit. The smoothing rolls are cambered. The films are used for decorating surfaces of high-value thermoplastic moulded parts.

Process of making a glossy film

Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.

Optically isotrophic polycarbonate films and a method for the production thereof

Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films are used as covering films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.

Optically isotropic polycarbonate films and a method for the production thereof

An impact resistant provided PMMA moulding material according to DE 195 44 563 is process into a surface-hardened film which is highly glossy, essentially free of gel bodies and can be processed in the &ldquo;in-mould-film-decoration&rdquo; method. The melted mass is generated by means of an extruder and fed to the inventive glazing rolls via a flexible lip nozzle, saild rolls being configured in order to generate an especially high locking pressure in the roll slit. The smoothing rolls are cambered. The films are used for decorating surfaces of high-value thermoplastic moulded parts.

Thermoplastically re-formable plastic sheets with flameproofing means, characterized by a core layer 1-10 mm thick comprised of polyether sulfone or a similar thermoplastic, which core material has a content of at least 0.5 wt. %, preferably at least 2 wt. %, of a flame-protective additive, such as boron trioxide; and said sheet or plate further characterized by outer layers, firmly adhering to and covering the two faces of the core layer, at least 0.05 mm thick and comprised of a thermoplastic having a lower proportional content of the flame-protective additives than the core layer; are particularly useful for interior structures in passenger conveyances, such as airplanes.

Plastic sheet or plate with flameproofing means

Growing community of inventors

Griesheim, Germany

Klaus Hofmann