Sound-insulating boards based on mineral fibers and thermoplastic binders
AssigneeBASF SE
InventorsBernhard Dotzauer, Hans Kast, Gernot Franzmann, Gregor Ley, Wilhelm F. Beckerle, Wolfgang Schilder
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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.
Claims11
A sound-insulating board which comprises mineral fibers and a thermoplastic binder, wherein said board contains as the binder from 4 to 20%, based on the weight of the mineral fibers, of a polymer having a glass transition temperature of from 38.degree. to 80.degree. C. and consisting of from 60 to 100% by weight of (meth)acrylates of alkanols of 1 to 4 carbon atoms and from 0 to 40% by weight of acrylonitrile and/or styrene, the percentages being based on the copolymer.
Dependencies are inferred from the claim text.