Bayer Aktiengesellschaft

Peter-Rolf Muller

Hans-Detlef Heinz

Martin Wandel

Rolf Dhein

Karl-Heinz Ott

Rolf-Volker Meyer

Friedemann Muller

Karl Fuhr

Aziz El-Sayed

Klaus Horn

Ralf Dujardin

Friedrich Fahnler

Harald Selbeck

Michael Dietrich

Heinz Bonten

The subject of the invention is flameproofed, non-dripping polyamide moulding compounds which contain specific amounts of the following:

Flameproofed, non-dripping polyamide moulding compound

The invention relates to high molecular weight thermoplastically deformable branched aliphatic polyamides prepared by polycondensation of lactams and/or polyamide-forming diamine/dicarboxylic acid reaction mixtures and/or amino acids in the presence of small amounts of specific diamino-alcohols and approximately equivalent amounts of polycarboxylic acids (preferably dicarboxylic acids), and to a process for their preparation, which is distinguished by considerably shortened polycondensation times, without crosslinked products being formed. If appropriate, the process additionally utilizes a solid phase after-condensation, in which rapid further condensation to products which are indeed branched but are soluble in m-cresol and have an increased melt viscosity takes place.

High molecular weight (co)polyamide from diamino-alcohol

The invention relates to flameproofed, non-dripping polyamide moulding compositions which contain certain amounts of

Flameproofed, non-dripping polyamide moulding compositions

This invention relates to thermoplastically deformable branched aliphatic polyamides prepared by the hydrolytic polycondensation of lactams in the presence of small quantities of .alpha.-amino-.epsilon.-caprolactam (ACL) and approximately equivalent quantities of polycarboxylic acids (preferably dicarboxylic acids) and to a process for their preparation which is distinguished by considerably reduced polycondensation times without giving rise to cross-linked products. The process optionally in addition employs a solid phase after-condensation in which rapid further condensation takes place to the products with increased melt viscosity which are branched but are still soluble in m-cresol.

Alpha-amino-epsilon-caprolactam-modified polyamide preparation

This invention relates to thermoplastically deformable, high molecular weight, slightly branched aliphatic polyamides prepared by the polycondensation of polyamide-forming, aliphatic diamine/dicarboxylic acid mixtures, optionally with the addition of lactams and special amino acids, in the presence of small quantities of .alpha.-amino-.epsilon.-caprolactam, and optionally their thermal solid phase after-condensation.

.alpha.-amino-.epsilon.-caprolactam-modified polyamide of dicarboxylic

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Leverkusen, Germany

Peter-Rolf Muller