Method of making casual footwear including a knitted fabric upper, a woven insole portion, and an injection-molded sole is produced in a mold cycle of 45-second duration, as opposed to five or six minutes heretofore generally required, or the +2 minutes with the latest known materials. Molding conditions...http://www.google.com/patents/US4134955?utm_source=gb-gplus-sharePatent US4134955 - Injection molding footwear
