IMPROVED MATERIAL FOR RAPID GAS SORPTION IN LOUDSPEAKERS

摘要

An assemblage of substantially round particles with a mean diameter between 0.1 and 4 mm, more preferable between 0.3 to 2 mm and most preferable between 0.8 to 1.2 mm, wherein the density of the assemblage determined by ISO 697 is between 250kg/m3 and 400kg/m3 is dis-closed. The substantially round particles comprise at least one microporous material and option-ally at least one binder, wherein the assemblage comprises a pore volume, wherein the pore volume comprises pores resulting from void space between different ones of the substantially round particles and pores within the substantially round particles.