An abrasion resistant coating composition having excellent wear clarity is disclosed. The coating composition comprises a unique blend of particles, including alumina that has been treated with an organosilane and silica that is either similarly treated or left untreated. The use of these particles in...http://www.google.co.uk/patents/US6833186?utm_source=gb-gplus-sharePatent US6833186 - Mineral-filled coatings having enhanced abrasion resistance and wear clarity and methods for using the same