Polyamide

US6958381B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Helmut Winterling · Ludwigshafen, DE
• Michael Fischer · Ludwigshafen, DE

Key dates

• Filing date: Nov 22, 2001
• Grant date: Oct 25, 2005
• Expiry date: Apr 10, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G69/28
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for preparing polyamides comprises polymerizing starting monomers in the presence of from 2.3 to 10 mmol, based on 1 mol of carboxamide group of the polyamide, of a chain regulator containing a nitrile group and a functional group capable of forming a carboxamide group.