A floor mat is formed essentially of cross-linked polyolefin foam for the lining of the floor interiors of motor vehicles. This mat includes a cross-linked polyolefin foam floor mat base having at least one preselected surface area covered with a permanently applied floor-protecting surface layer. The...http://www.google.es/patents/US4377614?utm_source=gb-gplus-sharePatente US4377614 - Floor mat, especially for motor vehicles
