公开(公告)号：US20220275159A1

公开(公告)日：2022-09-01

申请号：US17625302

申请日：2020-06-30

Applicant: TOYOBO CO., LTD.

Inventor： Yohei YAMAGUCHI ,  Kokichi TOKUO ,  Shotaro NISHIO ,  Kiwamu KAWAI

IPC: C08J7/04 ,  H04M1/02 ,  C08J5/18 ,  C08J7/043 ,  C09D5/00 ,  C09D7/61 ,  C09D7/40 ,  C09D7/45 ,  C09D7/65 ,  C09D175/04 ,  C09D167/02

Abstract: Provided is a hard coating film for foldable displays that does not form creases or cracks in the folding portion, and that is also excellent in reducing iridescent colors (interference mottling) caused by fine cracks in an easy-to-adhere resin layer or other layers. The hard coating film for a foldable display contains a polyester film having a thickness of 10 to 80 μm, an easy-to-adhere resin layer, and a hard coating layer, the easy-to-adhere resin layer and the hard coating layer being stacked in this order on at least one surface of the polyester film, wherein the easy-to-adhere resin layer is a cured product of a composition containing a binder resin and at least one type of particles selected from the group consisting of titanium oxide particles, zirconium oxide particles, and silica particles, the at least one type of particles have a mean particle size of 5 to 150 nm, and the polyester film having the easy-to-adhere resin layer stacked thereon but not yet having the hard coating layer stacked thereon satisfies specific conditions.

公开(公告)号：US20220389269A1

公开(公告)日：2022-12-08

申请号：US17625291

申请日：2020-06-30

Applicant: TOYOBO CO., LTD.

Inventor： Yohei YAMAGUCHI ,  Kokichi TOKUO ,  Shotaro NISHIO ,  Kiwamu KAWAI

IPC: C09D167/02 ,  C09D7/61 ,  C09D7/63 ,  G02B1/14

Abstract: Provided is a hard coating film for foldable displays that does not form creases or cracks in the folding portion, and that is also excellent in reducing iridescent colors (interference mottling) caused by fine cracks in an easy-to-adhere resin layer or other layers. The hard coating film for foldable displays contains a polyester film having a thickness of 10 to 80 μm, an easy-to-adhere resin layer, and a hard coating layer, the easy-to-adhere resin layer and the hard coating layer being stacked in this order on at least one surface of the polyester film, wherein the easy-to-adhere resin layer is a cured product of a composition containing at least one compound selected from the group consisting of titanium compounds and zirconium compounds and a polyester resin, and the polyester film having the easy-to-adhere resin layer stacked thereon but not yet having the hard coating layer stacked thereon satisfies characteristics within specific ranges.