Invention Application
- Patent Title: METHOD FOR PRODUCING A POLYMER FILM
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Application No.: US16333105Application Date: 2017-09-05
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Publication No.: US20190224902A1Publication Date: 2019-07-25
- Inventor: Walter GOETZ , Rolf MINKWITZ , Rolf-Egbert GRUETZNER , Florian RICHTER
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Priority: EP16188742.7 20160914
- International Application: PCT/EP2017/072224 WO 20170905
- Main IPC: B29C48/00
- IPC: B29C48/00 ; C08G69/34 ; C08G69/36 ; B29C48/10 ; B29C55/28 ; B29C48/88
Abstract:
The present invention relates to a process for producing a polymer film (P) comprising at least one copolyamide by extrusion of the copolyamide through a ring die and subsequent stretching of the tube thus obtained by blowing in air. The present invention further relates to the polymer film (P) obtainable by the process of the invention and to a process for packing foods.
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