FIELD: chemistry.
SUBSTANCE: invention relates to a mat made from polymer fibres, capable of trapping formaldehyde, which contains a dihydrazide. The invention also relates to the use of said mat, particularly as a cover of the surface of heat- and/or sound-insulating products, particularly based on mineral wool, polystyrene or an organic or inorganic foam material.
EFFECT: broader applications.
15 cl, 1 tbl
