Basf Aktiengesellschaft

Herbert Fisch

Gunter Pipper

Martin Weber

Axel Gottschalk

Michael Nam

Martin Jochen Klatt

Bernd Leutner

Thomas Heitz

Lothar Maempel

Axel Sanner

Norbert Niessner

Volker Warzelhan

Motonori Yamamoto

Graham Edmund Mc Kee

Jorg Breitenbach

Michael Fischer

Otto Volkert

Brigitte Gareiss

Stefan Stein

Karin Sperling-Vietmeier

Martin Laun

Jens Rieger

Peter Braune

Erich Pellkofer

Heiner Gorrissen

Klaus Muhlbach

Georg Schneider

Flame-proofed polyester molding materials

Moulding substances based on poly-C2-C6 -alkylene terephthalates

Flame-proof moulding compounds

Flame-retardant polyester molding compositions containing flame retardant nitrogen compounds and diphosphinates

The invention relates to the use of thermoplastic polyester molding compounds, containing A) 80 to 100 wt. % of a polyalkylene arylate, especially polybutyleneterephthalate, with a half-width of crystallization heat releases of &lE;5&deg; C. and B) 0 to 20 wt. % of other additives, the weight percentages of constituents A) and B) adding up to 100%, for producing molded bodies by blow-molding, profile extrusion and/or pipe extrusion. A preferred use for the inventive molding compounds is the production of light guide sheathing. The invention also relates to a 3-stage method for producing the polyesters as follows: a) esterification or re-esterification of an aromatic dicarboxylic acid or its derivative and a glycol; b) precondensation; and c) polycondensation to a viscosity number of at least 158 ml/g. The reaction is carried out in at least 2 temperature zones in stages a) and b).

Use of high-molecular polyester moulding materials

A molding material contains, based on the sum of the components A and B, and, if required, C, D and/or E,

Molding material

Polyamide/polyolefin blends

The use of sulfonate-bearing polyamides which are obtainable from

Sulfonate-bearing polyamides and their use in hairsetting compositions

Thermoplastic molding materials based on partly aromatic copolyamides

Thermoplastic molding materials based on partly aromatic poly-amides and

Branched polyamides are prepared by mixing A) from 10 to 99.7% by weight of a melt of a polyamide prepolymer having a viscosity number of from 40 to 90 ml/g with B) from 0.3 to 6% by weight of a polybasic carboxylic acid, where the number n of the free carboxylic acid groups is 3.ltoreq.n.ltoreq.10, and also C) from 0 to 80% by weight of further additives and processing aids, where the percentages by weight of the components A) to C) add up to 100%, and subsequently further condensing the mixture in the solid phase.

Preparation of branched polyamides

Thermoplastic polyamide molding materials

Thermoplastic molding materials based on partly aromatic polyamides and

Partly aromatic semicrystalline thermoplastic polyamide molding compositions contain A) from 40 to 100% by weight of a copolyamide composed of

Partly aromatic copolyamide molding materials having high crystallinity

Growing community of inventors

Wachenheim, Germany

Herbert Fisch