Apparatus for continuous production of elongated foam plastics blocks

US3942925A · kind A · utility

Assignee

• Maschinenfabrik Hennecke GmbH · DE

Inventors

• Willi Schmitzer
• Reiner Raffel · Siegburg, DE
• Ferdinand Althausen · Neunkirchen, DE
• Ferdinand Proksa · Leverkusen, DE

Key dates

• Filing date: May 1, 1972
• Grant date: Mar 9, 1976
• Expiry date: May 1, 1992

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2307/7265
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Continuous foam blocks with rectangular cross-section are produced on a side-limited conveyor band by feeding a foamable mixture to a cover foil travelling with said conveyor band and covering the free surface of the mixture with a bearing layer not earlier than immediately after the supply of the mixture and not later than before the zone in which a skin would be formed on the free surface of the block.