Procedure of lateral stretching of isotºtic polypropylene films to obtain its molecular orientation (Machine-translation by Google Translate, not legally binding)

摘要

Method of lateral stretching of isotactic polypropylene films to obtain their molecular orientation, characterized in that the stretching is applied when the film is heated to a temperature comprised between the melting point of the polymer and 30º c. Below the mentioned melting point. (Machine-translation by Google Translate, not legally binding)