摘要:
Low basis weight films having a heat capacity×density value of greater than about 970,000 Ws/m3K, as measured by the method described herein, the films having a basis weight of less than about 16 gsm and comprising at least about 10% polypropylene.
摘要:
Low basis weight films having a heat capacity×density value of greater than about 970,000 Ws/m3K, as measured by the method described herein, the films having a basis weight of less than about 16 gsm and comprising at least about 10% polypropylene