Patent ID: 7972682
Filing Date: 2011-07-05
Classification: B01J,C01P,C08K,C08L,C09C,Y10T

Abstract:
1. A shaped porous article or coating comprising a dried suspension comprising: a) finely divided particles in amounts of 0.01%-50% by weight, the particles having a fractal mass dimension D b) at least one liquid, and c) at least one colloid-scale adhesive containing silicon atoms, in an amount of from 0.1 to 20 parts by weight based on 100 parts by weight of finely divided particles a) wherein the suspension, when dried to remove the liquid b), forms a porous solid which does not crumble or disintegrate under mechanical loading, wherein the liquid comprises an alkanol protic solvent, a non-protic polar solvent, or mixture thereof, and the finely divided particles comprise both hydrophobic fumed silica and a functionalized fumed silica containing aminoalkyl groups.