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Title:
METHOD FOR MANUFACTURING BIAXIALLY ORIENTED POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2023/018029
Kind Code:
A1
Abstract:
The present application relates to a biaxially oriented polyester film and a method for manufacturing same. According to the present application, provided is a polyester film with suppressed bowing and a reduction in phase difference deviation, and at the same time, with improved film uniformity and mechanical properties.

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WO/2012/117897MULTILAYERED FILM AND METHOD OF MANUFACTURING MULTILAYERED FILM
WO/2013/113154GUIDE RAIL DEDICATED TO BI-DIRECTIONALLY STRETCHING PLASTIC FILM SHEET
JPH09508593[Title of the Invention] Polymer sheet having oriented multilayer interference flakes
Inventors:
CHO HYUNKUG (KR)
PARK HANSOO (KR)
JANG SANGSOO (KR)
Application Number:
PCT/KR2022/010208
Publication Date:
February 16, 2023
Filing Date:
July 13, 2022
Export Citation:
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Assignee:
KOLON INC (KR)
International Classes:
B29C55/12; B29C35/02; B29C48/00; B29C48/07; B29C48/18; B29C55/00; B29C55/14; B29K67/00; B29L7/00
Foreign References:
KR20020046937A2002-06-21
KR20140002552A2014-01-08
JP2825904B21998-11-18
KR20210038242A2021-04-07
KR19990049686A1999-07-05
KR20180077585A2018-07-09
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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