Patent Number: 7,824,589

Title: Multi-wall sheet without the triangle effect, coated by coextrusion

Abstract: Gussetless multi-wall sheets are prepared using a coextrusion process which entails feeding part of the base material directly into and via the male insert of the extrusion die, thereby producing the gussetless sheet.

Inventors: Rubeck; Jakob (Nidderau, DE)

Assignee: Bayer Polymers Sheet Europe GmbH

International Classification: B29C 47/04 (20060101)

Expiration Date: 2019-11-02 0:00:00