Multilayer composites

US6680093B1 · kind B1 · utility

Assignee

• Degussa AG · DE

Inventors

• Hans Ries · Marl, DE
• Michael Schlobohm · Haltern, DE
• Guido Schmitz · Schneverdingen, DE

Key dates

• Filing date: May 15, 1998
• Grant date: Jan 20, 2004
• Expiry date: May 15, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31797
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A multilayer composite comprises a layer configuration A/C/B or A/C/B/C/A, whereinI. each layer A comprises a molding composition that comprises at least 50% by weight of a polymer A containing amino groups;II. layer B comprises a molding composition that consists of at least 50% by weight of a thermoplastic polyester or fluoropolymer B;III. each layer C comprises a molding composition that consists essentially of the following components a)-c):a) from 5 to 95 parts by weight of the polymer A,b) from 95 to 5 parts by weight of the polymer B, andc) from 1 to 90 parts by weight of a compatibilizer comprising an alkyl acrylate polymer.