公开(公告)号：US20190224902A1

公开(公告)日：2019-07-25

申请号：US16333105

申请日：2017-09-05

Applicant: BASF SE

Inventor： Walter GOETZ ,  Rolf MINKWITZ ,  Rolf-Egbert GRUETZNER ,  Florian RICHTER

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.

公开(公告)号：US20190040216A1

公开(公告)日：2019-02-07

申请号：US16075388

申请日：2017-01-31

Applicant: BASF SE

Inventor： Johannes Klaus SPRAFKE ,  Rolf MINKWITZ ,  Walter GOETZ

IPC: C08J5/18 ,  C08L77/02 ,  C08L77/06 ,  B32B27/34

Abstract: The present invention relates to a polymer film (P) containing a polyamide composition (PC) that comprises an amorphous polyamide (A) and a semicrystalline polyamide (B) and to a method for producing the polymer film (P). The present invention further relates to a method for packaging food products with the polymer film (P).