公开(公告)号：US20180194900A1

公开(公告)日：2018-07-12

申请号：US15740982

申请日：2016-06-29

Applicant: KOLON INDUSTRIES, INC.

Inventor： Doo Li CHOI ,  Hak Gee JUNG

IPC: C08G73/22 ,  C08L79/08 ,  C08G61/12

CPC classification number: C08G73/22 ,  C08G61/122 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1057 ,  C08G73/1067 ,  C08G73/1071 ,  C08J5/18 ,  C08J2379/04 ,  C08J2379/08 ,  C08L79/08 ,  C08L2201/10 ,  C08L2203/16

Abstract: This invention relates to a polyimide-polybenzoxazole precursor solution, a polyimide-polybenzoxazole film, and a method of manufacturing the same, wherein a film manufactured using the polyimide-polybenzoxazole precursor solution of the invention is formed by copolymerizing a unit structure of diamine and dianhydride and a unit structure of diaminophenol and dicarbonyl chloride in an organic solvent, and is colorless and transparent, like conventional polyimide films, and can exhibit improved heat resistance and low birefringence.

公开(公告)号：US20230375750A1

公开(公告)日：2023-11-23

申请号：US18247504

申请日：2021-12-24

Applicant: KOLON INDUSTRIES ,INC.

Inventor： Doo Li CHOI ,  Hak-Gee JUNG

IPC: G02B1/04 ,  G06F1/16 ,  C08G73/14

CPC classification number: G02B1/04 ,  G06F1/1607 ,  C08G73/14 ,  G06F2200/161

Abstract: The present invention provides an optical film comprising a polymer resin, which comprises a first repeating unit, a second repeating unit, a third repeating unit and a fourth repeating unit, wherein the optical index of the film is 1.0%/GU or more, the first repeating unit is an imide repeating unit derived from a first diamine-based compound and a dianhydride-based compound, the second repeating unit is an imide-repeating unit derived from a second diamine-based compound and a dianhydride-based compound, the third repeating unit is an amide-repeating unit derived from a first diamine-based compound and a dicarbonyl-based compound, the fourth repeating unit is an amide-repeating unit derived from a second diamine-based compound and a dicarbonyl-based compound, the first diamine-based compound is 2,2′-bis(trifluoromethyl)benzidine (TFDB), the second diamine-based compound includes an aromatic diamine-based compound, and the third repeating unit and the fourth repeating unit are included in a proportion of 80% or more with respect to the total number of the repeating units comprising the first to fourth repeating units.

公开(公告)号：US20230374219A1

公开(公告)日：2023-11-23

申请号：US18247520

申请日：2021-12-24

Applicant: KOLON INDUSTRIES, INC.

Inventor： Doo Li CHOI ,  Hak-Gee JUNG ,  Hyo Jun PARK

IPC: C08G73/10 ,  C08J5/18 ,  H05K5/03 ,  H10K59/80

CPC classification number: C08G73/1042 ,  C08G73/1064 ,  C08G73/1039 ,  C08G73/1067 ,  C08G73/1078 ,  C08J5/18 ,  H05K5/03 ,  H10K59/873 ,  C08J2379/08

Abstract: The present invention provides an optical film and a display device including same, the optical film comprising a polymer resin which includes: a first repeating unit; a second repeating unit; a third repeating unit; and a fourth repeating unit, wherein the first repeating unit is an imide repeating unit derived from a first diamine-based compound and a dianhydride-based compound, the second repeating unit is an imide repeating unit derived from a second diamine-based compound and a dianhydride-based compound, the third repeating unit is an amide repeating unit derived from a first diamine-based compound and a dicarbonyl-based compound, and the fourth repeating unit is an amide repeating unit derived from a second diamine-based compound and a dicarbonyl-based compound. The first diamine-based compound is 2,2′-Bis(trifluoromethyl)benzidine (TFDB), the second diamine-based compound includes aromatic diamine-based compounds, and the number of amide repeating units including the third repeating unit and the fourth repeating unit is at least 80% of the total number of repeating units including the first to fourth repeating units.

公开(公告)号：US20210179781A1

公开(公告)日：2021-06-17

申请号：US17187055

申请日：2021-02-26

Applicant: KOLON INDUSTRIES, INC.

Inventor： Doo Li CHOI ,  Hak Gee JUNG

IPC: C08G73/22 ,  C08J5/18 ,  C08G73/10 ,  C08G61/12

Abstract: A polyimide-polybenzoxazole precursor solution, a polyimide-polybenzoxazole film, and a method of manufacturing the film are disclosed. A polyimide-polybenzoxazole film manufactured using the polyimide-polybenzoxazole precursor solution is formed by copolymerizing a unit structure of diamine and dianhydride and a unit structure of diaminophenol and dicarbonyl chloride in an organic solvent. The film is colorless and transparent, like conventional polyimide films, and can exhibit improved heat resistance and low birefringence.