基本信息:
- 专利标题: MULTILAYER FILMS, LAMINATES, AND ARTICLES COMPRISING MULTILAYER FILMS
- 申请号:PCT/US2020/024396 申请日:2020-03-24
- 公开(公告)号:WO2020198195A1 公开(公告)日:2020-10-01
- 发明人: BUASZCZYK, Gianna , MAZZOLA, Nicolas Cardoso , GOMES, Jorge Caminero , BARBOSA, Bruno Cesar De Moraes
- 申请人: DOW GLOBAL TECHNOLOGIES LLC
- 申请人地址: 2211 H.H. Dow Way Midland, Michigan 48674 US
- 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 Midland, Michigan 48674 US
- 代理机构: LINK, J. Jason
- 优先权: US62/824,096 20190326
- 主分类号: B32B27/08
- IPC分类号: B32B27/08 ; B32B27/32 ; C08J5/18
摘要:
Embodiments of the present invention relate to multilayer films, laminates, and articles. In one aspect, a multilayer film comprises (a) a first layer comprising a first composition, wherein the first composition comprises at least one ethylene-based polymer and wherein the first composition has a density of less than 0.935 g/cm 3 , a melt index (I 2 ) of less than 2.0 g/10 minutes, a MWCDI value greater than 0.9, and a melt index ratio (I 10 /I 2 ) that meets the following equation: I 10 /I 2 ≥ 7.0 - 1.2 x log (I 2 ), wherein the first layer comprises at least 50 percent by weight of the first composition based on the weight of the first layer; (b) a second layer comprising a first polyethylene having a density of greater than 0.950 g/cm 3 and a melt index (I 2 ) of less 2.0 g/10 minutes, wherein the second layer comprises at least 40 percent by weight of the first polyethylene based on the weight of the first layer; and (c) a sealant layer, wherein the multilayer film comprises at least 29 weight percent of the first composition based on the total weight of the film, and wherein the multilayer film comprises at least 15 weight percent of the first polyethylene based on the total weight of the film.
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 |