Invention Grant
- Patent Title: Multilayer elastic film structures
- Patent Title (中): 多层弹性薄膜结构
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Application No.: US12088772Application Date: 2006-10-06
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Publication No.: US08227546B2Publication Date: 2012-07-24
- Inventor: Shaun S. Parkinson , Martin M. Hill , John Garnett
- Applicant: Shaun S. Parkinson , Martin M. Hill , John Garnett
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agency: Whyte Hirschboeck Dudek SC
- International Application: PCT/US2006/039197 WO 20061006
- International Announcement: WO2007/044544 WO 20070419
- Main IPC: C08F110/00
- IPC: C08F110/00 ; C08F210/06 ; B32B27/32

Abstract:
Multi-layer elastic air quenched blown film structures are disclosed which include: a first layer incorporating a propylene-based copolymer and optionally, a linear low density polyethylene or a low density polyethylene; and at least one second layer incorporating a linear low density polyethylene copolymer and optionally, a propylene-based copolymer and/or a low density polyethylene. Alternatively the second layer of the film structures may contain an in-reactor blend of a substantially linear polyethylene (or a homogeneously branched linear polyethylene) and a linear low density polyethylene. The film structures show an excellent balance of Dart impact, Elmendorf tear (in both the machine direction and cross direction), elastic holding force and elastic recovery.
Public/Granted literature
- US20080226920A1 Multilayer Elastic Film Structures Public/Granted day:2008-09-18
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