Invention Grant
- Patent Title: Biaxially-oriented polyethylene multilayer film with a matte surface
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Application No.: US17830602Application Date: 2022-06-02
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Publication No.: US11648760B2Publication Date: 2023-05-16
- Inventor: Gang Wang , Xiaobing Yun , Jianping Pan , Jingyi Xu
- 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
- Agency: Quarles & Brady LLP
- Priority: WO TCN2019087334 2019.05.17
- The original application number of the division: US17252955
- Main IPC: B32B27/32
- IPC: B32B27/32 ; B32B7/03 ; B32B27/08 ; B32B27/30 ; B32B27/18 ; B32B1/00

Abstract:
A biaxially-oriented polyethylene (BOPE) multilayer film comprises a skin layer with a matte surface and a core, the skin layer with a matte surface comprising, in weight percent (wt %) based upon the weight of the skin layer: (1) from 20 to 80 wt % of an ethylene-based polymer, and (2) from 80 to 20 wt % of a propylene-based polymer; each of the ethylene-based polymer and the propylene-based polymer having a storage modulus, with a difference between the storage modulus of the ethylene-based polymer and the propylene-based polymer of greater than 40 megaPascals (MPa) at 110° C., and greater than 18 MPa at 120° C.
Public/Granted literature
- US20220288908A1 Biaxially-Oriented Polyethylene Multilayer Film with a Matte Surface Public/Granted day:2022-09-15
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