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1. (WO2017150193) HIGHLY HEAT-RESISTANT POLYETHYLENE NAPHTHALATE SHEET

Pub. No.:    WO/2017/150193    International Application No.:    PCT/JP2017/005570
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Feb 16 00:59:59 CET 2017
IPC: C08J 5/18
B32B 9/00
B32B 27/36
H05K 1/03
Applicants: HIROSHIMA UNIVERSITY
国立大学法人広島大学
TEIJIN LIMITED
帝人株式会社
Inventors: HIKOSAKA, Masamichi
彦坂 正道
OKADA, Kiyoka
岡田 聖香
TANAKA, Yoshitaka
田中 良敬
Title: HIGHLY HEAT-RESISTANT POLYETHYLENE NAPHTHALATE SHEET
Abstract:
Provided is a highly heat-resistant polyethylene naphthalate sheet (highly heat-resistant polyethylene naphthalate film). A polyethylene naphthalate sheet according to one embodiment of the present invention contains crystals of a polyethylene naphthalate. This polyethylene naphthalate sheet has an upper temperature limit of not less than 280°C and contains nano oriented crystals wherein the polymer chains are highly oriented and crystals of a polyethylene naphthalate having crystal sizes of 50 nm or less are contained.