Process for the production of building material elements, particularly building boards

US4093488A · kind A · utility

Assignee

• ISOVOLTA- Osterreichische Isolierstoffwerke Aktiengesellschaft · US

Inventors

• Kurt Kirsch · Wien, AT
• Volkmar Hilzensauer · Ybbs an der Donau, AT
• Gunther Pflug · Wien, AT
• Felix Wehrmann · Wien, AT
• Gerald Maresch · Mödling, AT

Key dates

• Filing date: Feb 11, 1976
• Grant date: Jun 6, 1978
• Expiry date: Feb 11, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C2791/001
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the production of a building material element comprising spraying granules of vermiculite with an organic binder, prepressing the coated granules into a biscuit and heating and pressing the biscuit in a press to transform it into a building material element.