公开(公告)号：US20220234341A1

公开(公告)日：2022-07-28

申请号：US17616325

申请日：2020-06-04

Applicant: Dow Global Technologies LLC

Inventor： Lanhe Zhang ,  Jong Young Lee ,  Lori L. Kardos ,  Rajen M. Patel ,  Shaun Parkinson ,  Hrishikesh R. Munj ,  Teresa P. Karjala ,  Jose Eduardo Ruiz ,  Luis Duque ,  Jesus Nieto

IPC: B32B27/32 ,  B32B27/08 ,  B29C48/00 ,  B29C48/10 ,  B29C48/21

Abstract: The present disclosure provides a multi-layer blown film, comprising: a first skin layer and a second skin layer, where at least one of the first skin layer and the second skin layer comprises from 80 to 100 wt. % of a LLDPE, where the LLDPE has a density from 0.910 to 0.935 g/cm3; a core layer between the first skin layer and the second skin layer, where the core layer comprises from 70 to 100 wt. % of a second LLDPE having density from 0.910 to 0.935 g/cm3; and a first inner layer and a second inner layer, where at least one of the first inner layer and the second inner layer comprises from 80 to 100 wt. % of a HDPE, where the HDPE has a density from 0.940 to 0.970 g/cm3; where the multi-layer blown film has a density from 0.925 to 0.940 g/cm3 and a total thickness of 15 to 150 μm.

公开(公告)号：US20220080709A1

公开(公告)日：2022-03-17

申请号：US17421160

申请日：2020-01-21

Applicant: Dow Global Technologies LLC ,  Performance Materials NA, Inc.

Inventor： Jianping Pan ,  Luis Duque ,  Karlheinz Hausmann ,  Barry Alan Morris ,  Thomas Galatik

IPC: B32B27/08 ,  B32B27/32 ,  B32B27/36 ,  C08L23/06

Abstract: A multilayer structure includes an oriented polyethylene film and a barrier layer disposed on at least one surface of the oriented polyethylene film. The oriented polyethylene film comprises at least one layer having a polymer blend of at least one ethylene-based polymer and at least one ethylene acid copolymer. The ethylene-based polymer has a density of 0.910 to 0.960 g/cm3 and a melt index (I2) of 0.3 to 10 g/10 mins. The ethylene acid copolymer is the polymerized reaction product of ethylene monomer, monomer selected from the group consisting of monocarboxylic acids, dicarboxylic acids, anhydrides, and monoesters thereof, and optionally alkyl acrylate monomer. From 0 to 90 mol. % of total acid units of the ethylene acid copolymer may be neutralized with a neutralizing salt solution.