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AssigneeBASF SE
InventorsArmin Alteheld, Klaus Hahn, Christof Möck, Bernhard Vath, Jens-Uwe Schierholz
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The present invention concerns a process for producing a foam comprising at least one antimicrobial active, comprising the steps of: (1) preparing a solution or dispersion comprising at least one precondensate of the foam to be produced and at least one antimicrobial active, (2) foaming the precondensate by heating the solution or dispersion of step (1) to obtain a foam comprising at least one antimicrobial active, and (3) heat treating the foam obtained in step (2) at a temperature in the range from 120 to 300° C., a foam thus produced, a shaped article comprising such a foam and the use of such a foam for thermal and acoustical insulation of buildings and parts of buildings, thermal and acoustical insulation of the interiors of land, air and sea vehicles, low-temperature insulation, as an insulating wall cladding, as an insulating and shock-absorbing packaging material, as abrasive cleaning, grinding and polishing sponges, in the hygiene sector and as a filter material.
-9. (canceled)
A process for producing a foam based on a melamine-formaldehyde condensation product comprising at least one antimicrobial active, comprising the steps of:
A foam based on a melamine-formaldehyde condensation product comprising at least one antimicrobial active uniformly distributed therein, wherein the at least one antimicrobial active is selected from the group consisting of silver salt, copper salt, zinc salt and organic biocide and wherein the organic biocide is chloroisocyanurate, quarternary ammonium compound, hydantoin, chloromethylisothiazolinone, parabene, triclosan, 2-bromo-2-nitropropane-1,3-diol, phenoxyethanol, hexahydrotriazine or mixtures thereof.
Dependencies are inferred from the claim text.