Sound-insulating boards based on mineral fibers and thermoplastic binders

US4587278A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernhard Dotzauer · Frankenthal (Pfalz), DE
• Hans Kast · Mannheim, DE
• Gernot Franzmann · Worms, DE
• Gregor Ley · Wattenheim, DE
• Wilhelm Friedrich Beckerle · Frankenthal (Pfalz), DE
• Wolfgang Schilder · Dirmstein, DE

Key dates

• Filing date: Apr 12, 1984
• Grant date: May 6, 1986
• Expiry date: Apr 12, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/52
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Sound-insulating boards which are based on mineral fibers and thermoplastic binders and may or may not additionally contain fillers, flameproofing agents and water repellants contain, as the binder, from 4 to 20%, based on the weight of the mineral fibers, of polymers having a glass transition temperature of from 30.degree. to 80.degree. C. and consisting of not less than 60% by weight, based on the copolymer, of (meth)acrylates of 1 to 4 carbon atoms and as much as 40% by weight of acrylonitrile and/or styrene.