Title:
BIAXIALLY ORIENTED POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2023/190265
Kind Code:
A1
Abstract:
Provided is a biaxially oriented polyester film capable of achieving both sliding properties with respect to metal rolls and uniformity of fine wiring resist shape. A biaxially oriented polyester film configured such that at least one surface is a surface A that satisfies (1a) and (2a) when observed using AFM with a 5-μm-square field of view under specific conditions. (1a) The number of valley regions having a height from a reference plane of −2 nm or lower ranges from 100/5 μm□ to 500/5 μm□ inclusive. (2a) The average cross-sectional area of valley regions having a height from a reference plane of −2 nm or lower ranges from 2000 nm2 to 8000 nm2 inclusive.
Inventors:
SATO KOHEI (JP)
SENDAI TOSHIHIRO (JP)
HIGASHIOJI TAKUJI (JP)
SENDAI TOSHIHIRO (JP)
HIGASHIOJI TAKUJI (JP)
Application Number:
PCT/JP2023/012045
Publication Date:
October 05, 2023
Filing Date:
March 24, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/18; B29C55/12
Foreign References:
| JP2003155364A | 2003-05-27 | |||
| JP2020037620A | 2020-03-12 | |||
| JPH08167146A | 1996-06-25 | |||
| JPH06182195A | 1994-07-05 | |||
| JP2018053198A | 2018-04-05 | |||
| JP2021006639A | 2021-01-21 | |||
| JP2002099063A | 2002-04-05 | |||
| JP2002541466A | 2002-12-03 | |||
| JP2013087206A | 2013-05-13 | |||
| JP2006523157A | 2006-10-12 | |||
| US5916674A | 1999-06-29 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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