-
公开(公告)号:US06197244B1
公开(公告)日:2001-03-06
申请号:US09096556
申请日:1998-06-12
申请人: Livio Buongiorno , Ray E. Patrick , Luca Cerani , Paolo Ciocca , Roberto Forloni
发明人: Livio Buongiorno , Ray E. Patrick , Luca Cerani , Paolo Ciocca , Roberto Forloni
IPC分类号: B29C3510
CPC分类号: B32B27/08 , B29C55/023 , B29K2023/0625 , B29K2023/083 , B29K2023/086 , B32B27/32 , B32B38/0008 , B32B2038/0028 , B32B2307/518 , B32B2307/7244 , B32B2307/736 , B32B2323/10 , B32B2439/70 , C08L23/02 , Y10S428/91 , Y10T428/1328 , Y10T428/2495 , Y10T428/2918 , Y10T428/31913 , Y10T428/3192 , Y10T428/31928 , C08L2666/04 , C08L2666/24
摘要: A method of making the a multilayer, biaxially oriented, heat shrinkable thermoplastic film includes a layer having between 50 and 100 parts by weight ethylene/alpha-olefin C4-C12 copolymer, and between 0 and 50 parts by weight of a polymer selected from polyolefin, and modified polyolefin, the layer having more than one melting point when detected by diffential scanning calorimetry according to ASTM D-3418; wherein the total thickness variation in the multilayer film is lower than ±10%.
摘要翻译: 一种制备多层双轴取向的热收缩热塑性薄膜的方法包括具有50-100重量份乙烯/α-烯烃C4-C12共聚物的层和0-50重量份选自聚烯烃 和改性聚烯烃,当根据ASTM D-3418通过差示扫描量热法检测时,该层具有多于一个熔点; 其中多层膜中的总厚度变化小于±10%。