MODIFIED OPEN-CELL FOAM MATERIALS AND USE THEREOF IN VACUUM CLEANERS

摘要

Use of moldings whose length width height dimensions are always in the range from 1 mm to 3 cm, at least one dimension being greater than 5.5 mm, produced by treatment of(a) open-cell foam whose density is in the range from 5 to 500 kg/m³ and whose average pore diameter is in the range from 1 μm to 1 mm(b) with an aqueous formulation of at least one compound having at least one hemiaminal or aminal group per molecule or at least one copolymer containing at least one copolymerized comonomer which contains OH groups or which contains β-dicarbonyl groups, or which contains epoxy groups,(c) and a shaping step,as dust binders in vacuum cleaners.