76180621
Dec 12, 2000
May 28, 2002
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