76178309
Dec 8, 2000
Nov 25, 2003
Silica based porous solid material, namely powders, microspheres, and granules, used as adsorbent, catalyst, paper additive, separator, desiccant, molecular sieve, and for purification and solid phase synthesis, namely in the pharmaceutical, chemical, biochemical, microbiological, petrochemical, biological, biotechnological, photography and environmental industries
Chemicals