US 12,351,749 B2
Method of producing an adhesive sheet or a release liner
Takuma Okubo, Tokyo (JP); Kenji Ohata, Tokyo (JP); and Akihito Yamada, Tokyo (JP)
Assigned to LINTEC Corporation, Tokyo (JP)
Filed by LINTEC Corporation, Tokyo (JP)
Filed on Feb. 1, 2023, as Appl. No. 18/162,793.
Application 18/162,793 is a division of application No. 17/273,437, granted, now 11,613,678, previously published as PCT/JP2019/034839, filed on Sep. 4, 2019.
Claims priority of application No. PCT/JP2018/033250 (WO), filed on Sep. 7, 2018.
Prior Publication US 2023/0183528 A1, Jun. 15, 2023
Int. Cl. B29C 43/44 (2006.01); B29C 59/02 (2006.01); B29C 59/04 (2006.01); C09J 7/40 (2018.01)
CPC C09J 7/403 (2018.01) [B29C 59/022 (2013.01); B29C 59/04 (2013.01); B29C 43/44 (2013.01); B29C 2059/023 (2013.01); C09J 2301/122 (2020.08); Y10T 428/1476 (2015.01)] 4 Claims
OG exemplary drawing
 
1. A method of producing a release liner, comprising:
providing a roller having a pattern on an outer peripheral surface of the roller, the pattern comprising:
grooves extending linearly and seamlessly integrally formed with the outer peripheral surface of the roller, and
a plurality of protrusions having different heights randomly formed between adjacent grooves in a surface direction, the plurality of protrusions being continuously connected;
pressing a surface of a liner material against the outer peripheral surface of the roller; and
deforming the surface of the liner material to form an inverted pattern corresponding to the pattern on the outer peripheral surface of the roller.