发明名称 Polyethylene Films and Method of Making Same
摘要 The present invention is directed to polyethylene films having improved properties. Particularly, relatively thick films having improved tear properties and methods of improving tear, and multilayer films having improved dart impact strength and methods of improving the Dart impact strength.
申请公布号 US2015368415(A1) 申请公布日期 2015.12.24
申请号 US201314649834 申请日期 2013.12.04
申请人 EXXONMOBIL CHEMICAL PATENTS INC. 发明人 Fiscus David M.;Van Hoyweghen Danny
分类号 C08J5/18;B29C47/00;B29C47/06;B32B27/32 主分类号 C08J5/18
代理机构 代理人
主权项 1. A film having a thickness of about 20.0 to about 100.0 μm, film comprising at least a Layer A comprising: a. 50.0 to 100.0 wt. %, based on the weight of Layer A, of a first PE3-type polyethylene having a hafnium: zirconium (ppm/ppm) ratio>1.0, a CDBI<50%, and a g′vis≧0.98, and b. optionally, 1.0 to 50.0 wt. % of a polymer component selected from the group consisting of: i) a PE4-type polyethylene, ii) a PE5-type polyethylene, iii) a second PE3-type polyethylene, different from the first PE3-type polyethylene, having a density greater than 0.945 g/cm3, iv) a propylene-based polymer, and v) combinations thereof, the film having an MD Elmendorf Tear of 500.0 to about 1000.0 g/mil.
地址 Baytown TX US