Invention Grant
- Patent Title: Blown films with improved properties
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Application No.: US16324014Application Date: 2017-08-30
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Publication No.: US11040523B2Publication Date: 2021-06-22
- Inventor: Jose Eduardo Ruiz , Fawzi G. Hamad , Mustafa Bilgen , Claudia Hernandez , Swapnil B. Chandak , Jason C. Brodil
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agent Jacob R. Graham
- International Application: PCT/US2017/049248 WO 20170830
- International Announcement: WO2018/063693 WO 20180405
- Main IPC: B32B27/32
- IPC: B32B27/32 ; C08F210/16 ; C08L23/08 ; C08F4/655 ; C08F4/658 ; C08F4/64 ; B32B1/08 ; B32B27/08 ; C08J5/18

Abstract:
A multilayer blown film having an inner layer, a first outer layer, and a second outer layer, wherein the inner layer comprises an ethylene-based polymer having a MWCDI value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation: I10/I2≥7.0−1.2×log (I2); and the first outer layer and the second outer layer independently comprise a polyethylene composition which comprises the reaction product of ethylene and, optionally, one or more alpha olefin comonomers, wherein the polyethylene composition is characterized by the following properties: (a) a melt index, I2, of from 0.1 to 2.0 g/10 min; (b) a density of from 0.910 to 0.930 g/cc; (c) a melt flow ratio, I10/I2, of from 6.0 to 7.6; and (d) a molecular weight distribution, (Mw/Mn) of from 2.5 to 4.0.
Public/Granted literature
- US20190210340A1 BLOWN FILMS WITH IMPROVED PROPERTIES Public/Granted day:2019-07-11
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