公开(公告)号：US20240042666A1

公开(公告)日：2024-02-08

申请号：US18265275

申请日：2020-12-03

Applicant: THE SUPREME INDUSTRIES LTD

Inventor： Ole-Bendt RASMUSSEN

IPC: B29C48/00 ,  C08J5/18 ,  B29C48/08 ,  B29C55/28

CPC classification number: B29C48/002 ,  C08J5/18 ,  B29C48/0018 ,  B29C48/08 ,  B29C55/28 ,  C08J2300/16 ,  B29K2995/0088 ,  B29K2995/006 ,  B29K2995/0053

Abstract: The invention provides a process to orient a high molecular weight polymer film, formed from molten, dispersed or dissolved state, characterised in that as a start of this orientation process the film becomes embossed in a pattern of closely spaced dots or thin short lines, 5 thereby becoming oriented within these embossments, whereafter the orientation process is continued in one or more steps by m.d. stretching, t.d. stretching, or combined m.d. and t.d. stretching, whereby the embossed and oriented dots or lines gradually grow and develop until essentially the entire film has become oriented.