Title:
POLYESTER MULTILAYER FILM AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2022/039503
Kind Code:
A1
Abstract:
According to a polyester multilayer film according to an embodiment of the present invention and a method for preparing same, by forming irregularities having a maximum protrusion height (Ry) of 0.1 to 0.5 μm on the surface of an upper skin layer by means of a mat-type roll, protrusions (irregularities) are formed on both sides (top and bottom surfaces) of the polyester multilayer film, anti-blocking properties and slip properties can be secured even when the top and bottom surfaces of different polyester multilayer films come into contact with each other, and a polyester multilayer film that has excellent anti-blocking properties and slip properties and no loss of transparency even when top surfaces or bottom surfaces of different polyester multilayer films are in contact with each other can be provided.
Inventors:
SEONG MYEONG SEOK (KR)
Application Number:
PCT/KR2021/010975
Publication Date:
February 24, 2022
Filing Date:
August 18, 2021
Export Citation:
Assignee:
TORAY ADVANCED MAT KOREA INC (KR)
International Classes:
B32B27/18; B32B27/36; B32B37/15; B32B38/06; C08K3/013; C08K3/22; C08K3/34; C08K3/36; C08K5/101; C08K5/17
Foreign References:
| JP2001322220A | 2001-11-20 | |||
| KR20040054789A | 2004-06-25 | |||
| JPH09114050A | 1997-05-02 | |||
| KR20070007893A | 2007-01-16 | |||
| KR20140074642A | 2014-06-18 |
Attorney, Agent or Firm:
KIM, Byung Joo (KR)
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