Patent ID: 8287611

Claim:
A coated abrasive article comprising: abrasive grains and a colloidal composite binder composition comprising, based on the weight of the colloidal composite binder composition, about 5 wt % to about 80 wt % of a dispersion of colloidal silica suspended in an external phase of a cationically curable polymer resin, wherein the colloidal silica has an average particle size of 3 nm to 100 nm; not greater than about 60 wt % of an additional cationically polymerizable compound, wherein the cationically polymerizable compound is the same or different than the cationically curable polymer resin in which the colloidal silica is suspended; not greater than about 40 wt % of radically polymerizable compound; and about 1.0 wt % to not greater than about 15 wt % of a polyol.