A composite tread member used in a track for a track-laying vehicle. The tread member is molded of a polymeric material reinforced with abrasion resistant fibers. It can be molded in a reaction injection molding process or in a resin transfer molding process by first placing a metal support member and...http://www.google.com.au/patents/US4919876?utm_source=gb-gplus-sharePatent US4919876 - Method for making composite tread for track-laying vehicles
