ABRASIVE PARTICLES THAT INCLUDE A POLYMERIC MATERIAL AND ABRASIVE ARTICLES MADE FROM THEM

摘要

The present invention provides discrete particles and methods of preparing the discrete particles, and abrasive articles having projections attached to a major surface thereof and methods of making such articles. The discrete particles and abrasive articles include a plurality of abrasive grits and a polymeric material that includes a reaction product of components including (a) an epoxy-functional material, (b) at least one of a cyclic anhydride or a diacid derived therefrom, and optionally (c) a polyfunctional (meth)acrylate. The invention also provides articles made from the discrete particles and methods of making such articles. Preferably, the articles are abrasive articles.