Invention Application
- Patent Title: POLYOLEFIN-BASED MULTILAYER ELASTIC FILMS
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Application No.: US17764653Application Date: 2020-08-26
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Publication No.: US20220339918A1Publication Date: 2022-10-27
- Inventor: Aleksandar Stoiljkovic , Karlheinz Hausmann
- 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
- International Application: PCT/US2020/047924 WO 20200826
- Main IPC: B32B27/16
- IPC: B32B27/16 ; B32B27/08 ; B32B27/32 ; B32B27/30 ; B32B7/027 ; B32B37/15

Abstract:
According to at least one embodiment of the present disclosure, a multilayer elastic film comprises a core layer, a first outer layer, and a second outer layer. The core layer comprises at least 75 wt % polyolefin elastomer such as an ethylene/alpha-olefin block copolymer or a propylene-based plastomer. The first outer layer and the second outer layer each comprise at least 75 wt % of an ethylene-based copolymer, wherein the ethylene-based copolymer is selected from the group consisting of: (I) greater than 50 wt % of ethylene, from 5 to 16 wt % of an α,β-ethylenically unsaturated C3-C8 carboxylic acid, and optionally, from 0.5 to 10 wt % of an alkyl acrylate; (II) from 86 to 95 wt % of ethylene, and from 5 to 14 wt % of an alkyl acrylate; and (III) combinations thereof.
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