METHOD FOR IMPARTING THE PRESET PROPERTY TO SHEET OF POROUS MATERIAL AND PRODUCT MANUFACTURED WITH USE OF AGENT TO IMPART THE PRESET PROPERTY TO MATERIAL

摘要

FIELD: paper. SUBSTANCE: imparted to porous material having some interval in pore sizes are the required properties by selective sedimentation of powdery treating substances into large pores. So some properties may be obtained by the regulated variation of distribution of pore sizes (for instance, sample homogeneity, property of liquid filtering) while the other properties are governed by concrete application of treating substance (for instance, reaction to calendaring, capability for catalysis, marking for protection, adhesive properties). EFFECT: higher quality.