Invention Grant
- Patent Title: Multi-layer sheet and method thereof
- Patent Title (中): 多层片及其方法
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Application No.: US13816222Application Date: 2011-08-08
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Publication No.: US09586384B2Publication Date: 2017-03-07
- Inventor: Mrinal Kanti Banerjee
- Applicant: Mrinal Kanti Banerjee
- Applicant Address: IN Mumbai, Maharashtra
- Assignee: Essel Propack Ltd.
- Current Assignee: Essel Propack Ltd.
- Current Assignee Address: IN Mumbai, Maharashtra
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Priority: IN2254/MUM/2010 20100810
- International Application: PCT/IN2011/000518 WO 20110808
- International Announcement: WO2012/020426 WO 20120216
- Main IPC: B32B27/08
- IPC: B32B27/08 ; B32B27/30 ; B32B27/32

Abstract:
The present invention in provides a multilayer sheet comprising a poly vinyl alcohol (PVOH) layer only as an oxygen barrier layer. The multilayer sheet comprises an outer layer and an inner layer wherein the poly vinyl alcohol (PVOH) layer is sandwiched. The present invention also provides an environmental friendly method for manufacturing a multilayer sheet comprising preparing aqueous emulsion of the polyvinyl alcohol and applying over the outer sheet and drying the same at about 100-120° C. This multilayer sheet can be recycled very efficiently as the percentage of polyethylene is more than 90%.
Public/Granted literature
- US20130136908A1 MULTI-LAYER SHEET AND METHOD THEREOF Public/Granted day:2013-05-30
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