Bayer Materialscience Ag

Covestro Deutschland Ag

Burkhard Thuermer

Thomas Eckel

Dieter Wittmann

Achim Feldermann

Vera Taschner

Vera Buchholz

Eckhard Wenz

Andreas Seidel

Martin Haussler

Martin HÄUßLER

The present invention relates to moulding compositions of polycarbonates and graft polymers and optionally further additives and components, which have, in addition to a high resistance to chemicals, a good resistance to heat, in particular a low tendency towards yellowing and a low tendency towards degradation when exposed to heat. In a particular, flameproofed embodiment, the after-burn time in a UL94 classification is furthermore reduced.

PC/ABS compositions having a good resistance to heat and chemicals

The present invention relates to flame-resistant moulding compositions of polycarbonates and graft polymers which, in addition to good flow properties, have very good mechanical properties and a particularly good, trouble-free surface. These moulding compositions are suitable in particular for injection moulding uses for mouldings with thin wall thicknesses and high-gloss surfaces. The thermoplastic moulding compositions according to the invention comprise A) 65.0 to 82.0 parts by wt. of at least one aromatic polycarbonate, B) 4.0 to 11.0 parts by wt. of at least one graft polymer, C) 14.0 to 24.0 parts by wt. of at least one phosphorus-containing flameproofing agent, wherein the sum of the parts by weight of components A to C adds up to 100 parts by weight and the total content of the polymer which is formed from the grafting monomers or is added in the free form and is not bonded chemically to the graft base is less than 2.0 wt. %, based on the total moulding composition.

Easy-flowing polycarbonate/ABS moulding compositions with good mechanical properties and a good surface

The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and molding compositions which have good mechanical properties as well as high resistance to chemicals, to a process for their preparation, and to their use in the production of molded articles, in particular of casings for flat screen devices.

Scratch-resistant, impact-resistant polycarbonate moulding compositions having good mechanical properties II

The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and moulding compositions which have good mechanical properties and a high resistance to chemicals coupled with good flameproofing properties, and show improved flow properties during processing. The present invention furthermore relates to a process for the preparation of the compositions and their use for the production of shaped articles, in particular housings of flat screen apparatuses.

Scratch-resistant, impact-resistant polycarbonate moulding compositions with good mechanical properties

The present invention relates to flameproofed, impact-modified, scratch-resistant polycarbonate (PC) compositions and molding compositions with surface-modified, calcined kaolin as filler, which have good mechanical properties, good flowability and high chemical resistance. Furthermore, the present application relates to the use of the compositions for the production of moldings.

Flameproofed, impact-modified, scratch-resistant polycarbonate moulding compositions with good mechanical properties

A process for producing a three-dimensional article comprising a poly(ester)carbonate compositions characterized by its flame resistance and high impact strength is disclosed. The composition that contains

Flameproofed impact-strength-modified poly(ester)carbonate compositions

A poly(ester)carbonate compositions characterized by its flame resistance and high impact strength is disclosed. The composition that contains

A thermoplastic molding composition that features good mechanical properties as well as processability is disclosed. The composition that contains aromatic polycarbonate and/or aromatic polyester carbonate, rubber-modified graft polymer and a plurality of hollow ceramic beads is suitable for making molded articles characterized by good ESC behavior and flammability rating.

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Bornheim, Germany

Burkhard Thuermer