Invention Grant
- Patent Title: Polypropylene films with improved sealing behaviour, especially in view of improved sealing properties
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Application No.: US15535148Application Date: 2015-12-09
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Publication No.: US10385197B2Publication Date: 2019-08-20
- Inventor: Johan Defoer , Willem De Wever , Sara Croonen
- Applicant: BOREALIS AG
- Applicant Address: AT Vienna
- Assignee: BOREALIS AG
- Current Assignee: BOREALIS AG
- Current Assignee Address: AT Vienna
- Agency: Meunier Carlin & Curfman LLC
- Priority: EP14197547 20141212
- International Application: PCT/EP2015/079068 WO 20151209
- International Announcement: WO2016/091923 WO 20160616
- Main IPC: C08L23/12
- IPC: C08L23/12 ; C08L23/14 ; B65D65/40 ; C08J5/18 ; B29C48/08 ; B29C48/00 ; B29K23/00 ; B29K105/00
Abstract:
The present invention relates to a polymer blend and the film of the polymer blend or the film layers of the polymer blend as a surface layer or coating. More particularly, the invention relates to a polymer blend which may be extruded as such or extruded onto one or both sides of packaging film to give a sealing surface(s) which exhibits surprisingly heat sealability suitable for form-fill-and-seal-packaging. The present invention also relates the use of ethylene based plastomer to reduce sealability of films comprising polypropylene.
Public/Granted literature
- US20170342247A1 POLYPROPYLENE FILMS WITH IMPROVED SEALING BEHAVIOUR, ESPECIALLY IN VIEW OF IMPROVED SEALING PROPERTIES Public/Granted day:2017-11-30
Information query
