公开(公告)号：US11926127B2

公开(公告)日：2024-03-12

申请号：US16929382

申请日：2020-07-15

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SAMSUNG SDI CO., LTD.

Inventor： Chanjae Ahn ,  Sun Jin Song ,  Won Suk Chang ,  Boreum Jeong ,  A Ra Jo ,  Kyeong-Sik Ju ,  Sungwon Choi

IPC: B32B27/34 ,  B32B27/08 ,  B32B27/28 ,  C08G69/26 ,  C08G69/42 ,  C08J7/04 ,  C08J7/046 ,  G02B1/14

CPC classification number: B32B27/34 ,  B32B27/08 ,  B32B27/283 ,  C08G69/265 ,  C08G69/42 ,  C08J7/0427 ,  C08J7/046 ,  G02B1/14 ,  B32B2307/412 ,  B32B2307/536 ,  B32B2457/20 ,  C08J2377/06 ,  C08J2483/04

Abstract: Disclosed is a window film for a display device including a light transmitting substrate including a polyamide including a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and a hard coating layer laminated on one surface of the light transmitting substrate:






in Chemical Formula 1 and Chemical Formula 2, each of A1, A2, B, and D is the same as defined in the detailed description.

公开(公告)号：US10738173B2

公开(公告)日：2020-08-11

申请号：US15602616

申请日：2017-05-23

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung SDI Co., Ltd.

Inventor： Jungha Chae ,  Chanjae Ahn ,  Kyeong-Sik Ju

IPC: C08J5/18 ,  G09F9/30 ,  C08G73/14 ,  G06F1/16 ,  B32B27/28

Abstract: A poly(amide-imide) copolymer film having a tensile modulus of greater than or equal to 5.4 GPa, and a yellowness index of less than or equal to 3.6, wherein the poly(amide-imide) copolymer film is a reaction product of an aromatic dianhydride including biphenyl tetracarboxylic dianhydride and 4,4′-hexafluoroisopropylidene diphthalic dianhydride, an aliphatic dianhydride including 1,2,3,4-cyclobutane tetracarboxylic dianhydride, an aromatic diamine including 2,2-bis(trifluoromethyl) benzidine, and an aromatic dicarbonyl compound including terephthaloyl dichloride.

公开(公告)号：US12195591B2

公开(公告)日：2025-01-14

申请号：US18222372

申请日：2023-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SAMSUNG SDI CO., LTD.

Inventor： Hyunjeong Jeon ,  Sang Soo Jee ,  Kyeong-Sik Ju

IPC: C08G73/14 ,  C08G18/60 ,  C08G18/64 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  C08G73/10 ,  C08J5/18 ,  C09D179/08 ,  G02F1/1333

Abstract: A poly(amide-imide) copolymer including an amide structural unit having an amide bond in a polymer main chain and an imide structural unit having an imide bond in a polymer main chain, wherein at least one imide structural unit includes a moiety cross-linked to an adjacent polymer main chain through an amide bond.

公开(公告)号：US11267967B2

公开(公告)日：2022-03-08

申请号：US16907448

申请日：2020-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min Sang Kim ,  Sang Soo Jee ,  Yoon Seok Ko ,  Hyunjeong Jeon ,  Kyeong-Sik Ju

IPC: C08L79/08 ,  G02F1/361 ,  G02F1/365

Abstract: A composition for preparing an electro-optic material including a first polyimide having a high molecular weight, and a second polyimide having a lower molecular weight and including a structural unit including a chromophore functional group in the side chain, an electro-optic material including the composition, an electro-optic device including the electro-optic material, and a method of preparing the electro-optic material.

公开(公告)号：US09902814B2

公开(公告)日：2018-02-27

申请号：US15356952

申请日：2016-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung SDI Co., Ltd.

Inventor： Hyunjeong Jeon ,  Sang Soo Jee ,  Hongkyoon Choi ,  Byunghee Sohn ,  Kyeong-Sik Ju

IPC: C08G83/00

CPC classification number: C08G83/001 ,  C08K5/549 ,  C08L79/08 ,  C09D179/08 ,  H01L51/5253 ,  C08L83/04

Abstract: A composition for preparing an organic/inorganic hybrid poly(amide-imide) copolymer including a poly(amide-imide) copolymer, a poly(amide-amic acid) copolymer, or a poly(amide-imide/amic acid) copolymer including a structural unit represented by Chemical Formula 1; and a structural unit represented by Chemical Formula 2, a structural unit represented by Chemical Formula 3, or a combination thereof, and a polyhedral oligomeric silsesquioxane including a functional group capable of forming a hydrogen bond: wherein in Chemical Formulae 1 to 3, A, B, D, and E are the same as defined in the detailed description.