Bayer Aktiengesellschaft

Bayer Materialscience Ag

Bayer Intellectual Property Gmbh

Covestro Deutschland Ag

Bernd Keller

Dieter Wittmann

Thomas Eckel

Michael Zobel

Andreas Seidel

Heinrich Alberts

Holger Warth

Herbert Eichenauer

Eckhard Wenz

Alfred Eitel

Torsten Derr

Hans-Bernhard Hauertmann

Dorothy Rose

Wolfgang Raschilas

Holger Flat A 15/F The Harbourview Warth

An impact-modified polycarbonate composition is disclosed. The composition features good processing stability, low temperature toughness and chemical resistance to stress cracking. It includes two copolymers of a vinylaromatic compound and a functionalized vinylolefinic compound and is suitable for the production of complex components.

Polycarbonate molding compositions

A thermoplastic molding compositions comprising thermoplastic polycarbonate and an additive amount of an aluminum compound is disclosed. The aluminum compound is characterized by its particle size and the composition is characterized by its improved anti-static properties.

Polycarbonate moulding materials with anti-static properties

A thermoplastic molding composition comprising polycarbonate resin, at least one impact modifier and highly pure talc is disclosed. The talc is characterized in that it contains AlOin an amount of less than 1% relative to the weight of said talc. The composition that features high toughness, good processability and low coefficient of thermal expansion is suitable for the manufacture of exterior parts of vehicles.

Polycarbonate molding compounds containing a special talc

A molding composition characterized by its improved processability and flame resistance, suitable especially for extrusion is disclosed. The composition that contains polycarbonate, an impact modifier and a halogen-free phosphous-containing flameproofing agent features flame resistance of V-0 in the UL 94 V fire behavior test at wall thickness &#x2266;1.5 mm and a melt viscosity, measured at 260&#xb0; C. and a shear rate of 100 s, of &#x2267;600 Pa s

Flame-resistant polycarbonate molding compounds for extrusion applications

Flame-resistant polycarbonate moulding compounds

The invention relates to homopolymers and/or copolymers containing <100 ppm coarse particles with a particle diameter of between 200 and 500 &mgr;m, to thermoplastic moulding materials containing said homopolymtrs and/or copolymers, to the use of the homopolymers and/or copolymers and moulding materials for the production of moulded parts and to the moulded parts themselves.

Thermoplastic resins with a low proportion of coarse particles

Flame resistant graft polymer-modified polycarbonate molding compositions are described. The polycarbonate molding compositions comprise phosphorous compounds, and a coagulated mixture of flourinated polyolefins or precompound fluorinated polyolefins. Polycarbonate molding compositions according the present invention are flame retardant, and have desirable mechanical properties, e.g., notched impact strength and elongation at break.

Flame-resistant polycarbonate moulding materials modified with graft polymers

Thermoplastic moulding compositions based on polycarbonate and/or polyester-carbonate comprising graft polymer prepared by means of bulk, solution or bulk-suspension polymerization processes and phosphorus compounds of the general formula (I)

Flame-resistant polycarbonate ABS moulding material

A thermoplastic molding compositions comprising thermoplastic polycarbonate and an additive amount of a zinc compound having an average particle diameter of 1 nm to 20 &mgr;m is disclosed. The composition has an improved crude shade and improved mechanical properties.

Polycarbonate molding materials exhibiting improved mechanical properties

A flame resistant thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate, graft polymer, a specifically structured phosphorous compound, fluorinated polyolefin and inorganic compound with an average particle size no greater that 200 nm and an optional vinyl(co)polymer. The inventive composition is characterized in its improved stress cracking resistance and mechanical properties.

Flame and stress crack resistant polycarbonate molding compositions

Composites consisting of polyurethane and a thermoplastic material containing an inorganic polar additive

A flame resistant thermoplastic molding composition is disclosed. The composition contains a mixture of two aromatic polycarbonates having differing solution viscosities, a vinyl(co)polymer made from at least two ethylenically unsaturated monomers, a graft polymer obtainable by graft polymerization of at least two monomers selected from chloroprene, 1,3-butadiene, isoprene, styrene, acrylonitrile, ethylene, propylene, vinyl acetate and (meth)acrylates with 1 to 18 carbon atoms in the alcohol component, a phosphorous compound, a fluorinated polyolefin and an inorganic compound with an average particle size no greater than 200 nm. The inventive composition is additionally characterized in its improved stress cracking resistance.

Flame-resistant polycarbonate ABS molding materials

A flame-resistant, reinforced thermoplastic molding composition characterized by its improved properties is disclosed. The composition contains A) a mixture of two aromatic polycarbonate resins that differ one from the other in terms of their relative solution viscosities, B) an optional vinyl (co)polymer containing at least one ethylenically unsaturated monomer, C) a graft polymer, D) a phosphorus compound, E) fluorinated polyolefin, and F) inorganic reinforcing material.

Flame-resistant reinforced polycarbonate ABS moulding materials

A thermoplastic polycarbonate molding composition is described. The thermoplastic composition contains a silicon compound, e.g., silicon dioxide, having an average particle diameter of 0.001 &mgr;m to 10 &mgr;m. The silicon compound is present in the composition in an amount of 0.01 to 30 parts by weight per 100 parts by weight of the thermoplastic polycarbonate. Also describe are shaped articles, e.g., data technology housing components, made from the thermoplastic polycarbonate composition of the present invention.

Growing community of inventors

Geldern, Germany

Bernd Keller