公开(公告)号：US10385197B2

公开(公告)日：2019-08-20

申请号：US15535148

申请日：2015-12-09

Applicant: BOREALIS AG

Inventor： Johan Defoer ,  Willem De Wever ,  Sara Croonen

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.

公开(公告)号：US10385196B2

公开(公告)日：2019-08-20

申请号：US15535143

申请日：2015-12-09

Applicant: BOREALIS AG

Inventor： Johan Defoer ,  Willem De Wever ,  Sara Croonen

IPC: C08L23/14 ,  C08L23/12 ,  C08J5/18

Abstract: The patent application discloses a polypropylene-plastomer-blend comprising ethylene-based plastomer, which—after conversion into final articles and exposing to surface modification like corona treatment, shows improved dyne retention behavior and improved dyne retention ratio over time. Further disclosed are final articles and a process how to provide compositions and final articles having improved dyne retention behavior.