This invention pertains to blends of a first component of a polypropylene, a second component of an ethylene-based copolymer, and a third component which provides some properties representative of elastomeric polymers. The blends are useful in making single and multiple layer sheet structures. The invention...http://www.google.es/patents/US4764404?utm_source=gb-gplus-sharePatente US4764404 - Films having a polypropylene blend layer
