Abstract:
The invention relates to a foam material that is produced from a hydrophobic or oloephobic, open-pored foam matrix. Said matrix is impregnated with a substance consisting essentially of a polyvinylidene halide (co)polymer, which can optionally contain additional substituents and also optionally of a fluorocarbon resin and/or a silicone resin. The invention also relates to a method for producing said foam material.
Abstract:
The invention relates to a tube which has been filled with an open-cell foam based on an amino resin, especially a melamine/formaldehyde condensation product, and to its uses, especially as a filter or static mixer.
Abstract:
Use of moldings with length·width·height dimensions respectively in the range from 1 mm to 3 cm as dust binders in vacuum cleaners, where the molding(s) has/have been produced from chemically untreated 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.
Abstract:
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 mum 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 beta-dicarbonyl groups, or which contains epoxy groups, (c) and a shaping step, as dust binders in vacuum cleaners.
Abstract:
The invention relates to a foam which comprises a foam matrix having essentially open cells and an impregnation comprising essentially fluorocarbon resin or silicone resin applied to the foam matrix. The impregnation additionally comprises at least one flame-retardant substance. The invention further relates to a process for producing a foam according to the invention.