Invention Grant
- Patent Title: Multilayer polyolefin greenhouse films with high transparency
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Application No.: US16612003Application Date: 2017-05-11
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Publication No.: US11319419B2Publication Date: 2022-05-03
- Inventor: Yong Chen , Xiaobing Yun , Libo Du
- 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: Dinsmore & Shohl LLP
- International Application: PCT/CN2017/083934 WO 20170511
- International Announcement: WO2018/205220 WO 20181115
- Main IPC: B32B27/30
- IPC: B32B27/30 ; B32B27/32 ; B32B27/18 ; B32B27/08 ; C08J5/18 ; C08L23/06 ; C08L23/08 ; C08K5/00

Abstract:
A multilayer film (10) having excellent mechanical strength and transparency comprise a core layer (12), at least two skin layers, and at least two sub-skin layers disposed between the core layer (12) and the two skin layers. The core layer (12) comprises at least 60 wt. % linear low density polyethylene (LLDPE). The sub-skin layers comprise at least 60 wt. % low density polyethylene (LDPE). The skin layers comprise at least 80 wt. % of LLDPE wherein the LLDPE comprises C6 LLDPE, C8 LLDPE, or combinations thereof, and each skin layer has a thickness of less than 25% of the overall thickness of the multilayer film (10). The multilayer film (10) comprises at least 0.1 wt. % ultraviolet stabilizer.
Public/Granted literature
- US20200165396A1 MULTILAYER POLYOLEFIN GREENHOUSE FILMS WITH HIGH TRANSPARENCY Public/Granted day:2020-05-28
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