| 摘要 |
1. Process for the production of porous bodies containing no binder in the pores with air resistant values, variable within wide limits, as a measure for the pore size from coarse-pored substrates obtained by any production process and fillers, characterized in that the substrate is filled with a binder-free dispersion of a micronized agglomeratable filler having a particle size of not more than 5x10**-3 mm and subsequently the dispersion medium is removed. |
