发明申请
WO2021026137A1 MULTILAYER FILMS HAVING A LAYER COMPRISING A POLAR MATERIAL AND METHODS OF PRODUCING THE SAME
审中-公开
基本信息:
- 专利标题： MULTILAYER FILMS HAVING A LAYER COMPRISING A POLAR MATERIAL AND METHODS OF PRODUCING THE SAME
- 申请号：PCT/US2020/044860 申请日：2020-08-04
- 公开(公告)号：WO2021026137A1 公开(公告)日：2021-02-11
- 发明人： ALABOSON, Justice , BISWAS, Sanjib , GAUBERT, Joshua B. , GINGER, Douglas S. , KALIHARI, Vivek , KAPUR, Mridula , ONER-DELIORMANLI, Didem
- 申请人： DOW GLOBAL TECHNOLOGIES LLC
- 申请人地址： 2211 H.H. Dow Way
- 专利权人： DOW GLOBAL TECHNOLOGIES LLC
- 当前专利权人： DOW GLOBAL TECHNOLOGIES LLC
- 当前专利权人地址： 2211 H.H. Dow Way
- 代理机构： MONTELEONE, Allisyn E. et al.
- 优先权： US62/883,467 2019-08-06
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; B32B27/30 ; B32B27/32 ; B32B2250/242 ; B32B2270/00 ; B32B2307/30 ; B32B2307/538 ; B32B2307/544 ; B32B2307/546 ; B32B2307/558 ; B32B2307/581 ; B32B2307/724 ; B32B2439/70 ; B32B27/306
摘要：
Multilayer films having a layer including a medium density polyethylene having (a) a first polyethylene fraction having a single peak in a temperature range of 45 °C to 87 °C in an elution profile via improved comonomer composition distribution (iCCD); and (b) a second polyethylene fraction having a single peak in a temperature range of 95 °C to 120 °C via iCCD analysis. The polyethylene composition has a density of 0.924 g/cm3 to 0.936 g/cm3 and a melt index (I2) of 0.25 g/10 minutes to 2.0 g/10 minutes, a first polyethylene fraction area comprises at least 40% of the total area of the elution profile, a ratio of the first polyethylene fraction area to the second polyethylene fraction area is 0.75 to 2.5, and the width of the single peak of the second polyethylene fraction at 50 percent peak height is less than 5.0 °C.
IPC结构图谱:
| B | 作业；运输 |
| --B32 | 层状产品 |
| ----B32B | 层状产品，即由扁平的或非扁平的薄层，例如泡沫状的、蜂窝状的薄层构成的产品 |
| ------B32B27/00 | 实质上由合成树脂组成的层状产品 |
| --------B32B27/06 | .作为薄层的主要或惟一的成分，它与另一层由一种特定物质构成的薄层相贴 |
| ----------B32B27/08 | ..不同种类合成树脂的 |