Building material elements, particularly building boards, and a process for their production

US4201833A · 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: Mar 22, 1978
• Grant date: May 6, 1980
• Expiry date: Mar 22, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2993
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An incombustible building element with good thermal insulation properties produced by 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.