Patent ID: 6146762
Filing Date: 2000-11-14
Classification: A61K,A61Q,C01P,C08K,C09C,C09D,Y10T

Abstract:
Silica comprising a pore volume of between 0.4 and 2 ml/g, an absorptivity, measured according to DIN ISO standard 787/V of between 100 and 350 g of oil/100 g of silica, mean particle diameter of between 0.5 and 150 .mu.m; modified with polyamide resins whose monomers are solid at ambient temperature, and obtained by dry mixing of the polyamide monomers reduced to powder and of the silica at ambient temperature, followed by the polymerization of the said monomers whereby a porous silica is obtained in which the pores are at least partially filled with polyamide resins.