Patent ID: 8828904

Claim:
Totally porous particles, comprising: (a) an organic metal oxide selected from one or more of the formulae VII or VIII: MO 2 /(R 1 p R 1 q MO t ) n (VII) MO 2 /[R 2 (R 1 r MO t ) m ] n (VIII) wherein R 1 is independently selected in each instance from a substituted or unsubstituted C 1 to C 18 alkyl, alkenyl, alkynyl, or aryl group, wherein the substituents are selected from halogen, diol, amino-, alcohol, amide, cyano, ether, nitro, carbonyl, epoxide, sulfonyl, cation exchanger, anion exchanger, carbamate and urea, R 2 is a substituted or unsubstituted C 1 to C 7 alkylene, alkenylene, alkynylene, or arylene group moiety bridging two or more M atoms; p and q are 0, 1, or 2, provided that p+q=1 or 2, and that when p+q=1, t=1.5, and when p+q=2, t=1; r is 0 or 1, provided that when r=0, t=1.5, and when r=1, t=1; m is an integer greater than or equal to 2; and n is a number from 0.01 to 100; and M is selected from Si, Ti, or Zr; (b) a median pore size range from about 15 to about 1000 Å; (c) a specific surface area of from about 5 to about 1000 m 2 /g; and (d) a median size range from about 0.5 μm to about 100 μm.