Process for producing a synthetic resin sheet, especially for a multicolor pattern

US4888145A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Kurt Allner · Troisdorf, DE
• Hans Brinkmann · Troisdorf, DE
• Bernhard Kraemer · Troisdorf, DE
• Herbert Schulte · Troisdorf, DE

Key dates

• Filing date: Sep 23, 1983
• Grant date: Dec 19, 1989
• Expiry date: Sep 23, 2003

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2995/0021
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for the production of thick synthetic resin sheets having a multicolor pattern, involves processing heated thermoplastic chips into a coherent sheet by means of a pair of rolls profiled to a depth of about 0.1-0.5 mm which effect partially differing densification.