Polyamide graft copolymers

US6538073B1 · kind B1 · utility

Assignee

• Degussa AG · DE

Inventors

• Georg Oenbrink · Schneverdingen, DE
• Harald Haeger · Thedinghausen, DE
• Ralf Richter · Dresden, DE

Key dates

• Filing date: Jun 26, 2000
• Grant date: Mar 25, 2003
• Expiry date: Jun 26, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J177/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A graft copolymer suitable as a blend component or as a hot-melt adhesive, which contains the following monomer units:a) from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine having at least 11 nitrogen atoms and a number-average molar mass Mn of at least 500 g/mol; andb) an equimolar combination of diamine and dicarboxylic acid as polyamide-forming monomers.