Invention Grant
- Patent Title: Multilayer composition for packaging
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Application No.: US14908074Application Date: 2014-07-23
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Publication No.: US10252497B2Publication Date: 2019-04-09
- Inventor: Chien Hsu , Marco Balbo Block , Andre Kamm
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Foley & Lardner LLP
- International Application: PCT/US2014/047739 WO 20140723
- International Announcement: WO2015/017202 WO 20150205
- Main IPC: B32B27/08
- IPC: B32B27/08 ; B32B37/12 ; C08L67/00 ; B32B7/12 ; B32B15/08 ; B32B15/20 ; B32B27/30 ; B32B27/32 ; B32B27/34 ; B32B27/36 ; C08L75/00 ; C08G18/10 ; C08G18/42 ; C09J175/04 ; B32B38/00 ; B32B38/14 ; C08G101/00

Abstract:
A multilayer composition for packaging comprising a first polymer film, a second film, at least one print layer between the films and a 1 K isocyanate prepolymer adhesive layer between the at least one print layer and one of the films, where the print layer contains a hyperbranched polyester binder containing functional groups selected from the group consisting of —OH, —COOH and —COOR, where R is methyl, ethyl, vinyl, isopropyl, n-propyl, n-butyl, isobutyl, sec-butyl or tert-butyl provides packaging laminates with excellent adhesion. The hyperbranched polyester is for example a polymer of trimethyolpropane and hexahydrophthalic anhydride and optionally a cycloaliphatic diol.
Public/Granted literature
- US20160185086A1 MULTILAYER COMPOSITION FOR PACKAGING Public/Granted day:2016-06-30
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