.alpha.-amino-.epsilon.-caprolactam-modified polyamide of dicarboxylic acids/diamines

US4892927A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf-Volker Meyer · Krefeld, DE
• Rolf Dhein · Krefeld, DE
• Michael Dietrich · Neuhausen, CH
• Heinz Bonten · Krefeld, DE
• Hans-Detlef Heinz · Krefeld, DE
• Peter Muller · Leverkusen, DE

Key dates

• Filing date: Apr 18, 1988
• Grant date: Jan 9, 1990
• Expiry date: Apr 18, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G69/36
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

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.