公开(公告)号：US20240198576A1

公开(公告)日：2024-06-20

申请号：US18533889

申请日：2023-12-08

Applicant: FINA TECHNOLOGY, INC.

Inventor： Michael McLeod ,  Theodore Harris ,  LuAnn Kelly

IPC: B29C48/21 ,  B29C48/00 ,  B29K23/00

CPC classification number: B29C48/21 ,  B29C48/0018 ,  B29K2023/14 ,  B29K2995/0081 ,  B29K2995/0089 ,  B29K2995/0097

Abstract: A blown polypropylene film or sheet is disclosed. The film or sheet can include at least 95 wt. % of a polypropylene, and at least one β-nucleating agent or crystallization inhibitor, where the polypropylene blown film or sheet has a thickness of 0.5 mils to 15 mils, and where the polypropylene blown film has an increased dart impact strength, as measure by ASTM D1709, when compared with a second polypropylene blown film or sheet that has the same components in the same wt. % amounts as the polypropylene blown film or sheet except that the second polypropylene blown film or sheet does not include the at least one β-nucleating agent or crystallization inhibitor.