Mineral fiber composition

US6043170A · kind A · utility

Assignee

• Isover Saint-Gobain · FR

Inventors

• Bernd Steinkopf · Ludwigshafen, DE
• Wolfgang Holstein · Homberg (Efze), DE
• Axel Katzschmann · Schwetzingen, DE
• Peter Lohe · Mutterstadt, DE

Key dates

• Filing date: Oct 6, 1997
• Grant date: Mar 28, 2000
• Expiry date: Oct 6, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2213/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Mineral fiber composition which is decomposable in the physiological medium, characterized by the following constituents in weight percent: SiO.sub.2 30 to less than 51; Al.sub.2 O.sub.3 higher than 11.5, in particular higher than 13,up to 25; CaO 2 to less than 23; MgO 0 to 15; Na.sub.2 O+K.sub.2 O higher than 10, up to 19; TiO.sub.2 +Fe.sub.2 O.sub.3 6 to 18; various 0 to 3.