Process for the continuous production of foam plastic blocks having a rectangular cross-section

US4150075A · 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: Nov 9, 1977
• Grant date: Apr 17, 1979
• Expiry date: Nov 9, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S264/84
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

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.