Bayer Materialscience Ag

Bayer Intellectual Property Gmbh

Covestro Deutschland Ag

Uli Franz

Wolfgang Ebert

Andreas Seidel

Alexander Meyer

Wilfried Haese

Thomas Eckel

Eckhard Wenz

Ralf Hufen

Christian Kords

Raimund Zimmermann

Reiner Horl

Norbert Schniesko

Helmut Einberger

Michael Prein

Hermann Kauth

Stephan Konrad

Bert Ruytinx

Rainer Protte

Andreas Frankenau

Stefaan De Vos

Philipp Moeller

Christian Eh

Philipp Möller

Achim Gustorf

David Harrison

A composite and process for the production of a composite component, comprising a) a support of a thermoplastic composition, and b) at least one polyurethane layer in direct contact with the support.

Process for the production of polyurethane composite components

The present invention relates to a composite component comprising i) a support made of a thermoplastic composition comprising A) at least one polymer selected from the group consisting of aromatic polycarbonates, aromatic polyester carbonates, aromatic polyesters, and mixtures thereof, in an amount of from 20.0 to 85.0 parts by wt., based on the sum of components A and B; B) at least one rubber-modified vinyl (co)polymer in an amount of from 15.0 to 80.0 parts by wt., based on the sum of components A and B, and with a rubber content [R] of at least 25.0 parts by wt., based on component B; and C) at least one polymer additive in an amount of from 0 to 30.0 parts by wt., based on the sum of components A to C; and ii) at least one polyurethane layer, wherein the thermoplastic composition comprises a total rubber content [R], of at least 12 parts by wt., based on the sum of components A to C.

Composite components with improved adhesion of polycarbonate/polyester compositions and polyurethane

A method for the filling and optionally emptying transport containers with plastics granular materials, in which a flexible plastics inliner is inserted into a transport container. A front side of the inliner includes at least one receiving flexible hose connection for filling the inliner with plastics granular material, at least one discharge hose connection for discharging blown in conveying air from the inliner, and at least one emptying hose connection for emptying plastics granular material from the inliner. The front side of the inliner also includes a protective liner. The cabin and the transport container are positioned at a decanting station, the cabin being adapted to transfer plastics granular material from the decanting station and decant the transferred plastics granular material into the transport container through the receiving hose connection. The transport container is then filled with plastics granular material utilizing the cabin.

System for filling and emptying transport containers with plastics granular material

A method for the filling and optionally emptying transport containers with plastics granular materials is disclosed. A flexible plastics inliner is inserted into a transport container. A front side of the inliner includes at least one receiving flexible hose connection for filling the inliner with plastics granular material, at least one discharge hose connection for discharging blown in conveying air from the inliner, and at least one emptying hose connection for emptying plastics granular material from the inliner. The front side of the inliner also includes a protective liner. The cabin and the transport container are positioned at a decanting station, the cabin being adapted to transfer plastics granular material from the decanting station and decant the transferred plastics granular material into the transport container through the receiving hose connection. The transport container is then filled with plastics granular material utilizing the cabin.

Method for filling and emptying transport containers with plastics granular material

The present invention provides a polycarbonate resin produced by the continuous interfacial process characterized in that after alkaline hydrolysis with sodium hydroxide, the polycarbonate resin contains an amount of 0.01 to 150 ppm of carbamate compounds according to formula (1) said amount measured by high pressure liquid chromatography, wherein Rand Rindependently of one another denote hydrogen or C-C-alkyl, or together denote C-C-alkylidene, and Rand Rindependently of one another denote hydrogen. C-C-alkyl or phenyl, or together with the carbon atom to which they are bonded form cyclohexyl or trimethylcyclohexyl, the process comprising phosgene reacting with at least one bisphenol at 8 to 17% molar excess of phosgene relative to the bisphenol.

Polycarbonates with good wettability

An improvement to the phase interface process of preparing aromatic polycarbonate is disclosed. The process is characterized in that the phosgenation is carried out at 0 to 40&#xb0; C., and in that the temperature of the reaction mixture at the time of addition of the catalyst at 10 to 40&#xb0; C., and in that the molar ratio of aromatic dihydroxy compounds to phosgene at 1:1.05 to 1:1.20. The polycarbonate thus produced is characterized in its low content of carbamates, making it particularly suitable for the preparation of optical storage media.

Process for the preparation of polycarbonates

Growing community of inventors

Solingen, Germany

Uli Franz