公开(公告)号：US20180355108A1

公开(公告)日：2018-12-13

申请号：US16003651

申请日：2018-06-08

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

Inventor： A Ra JO ,  Chanjae AHN ,  Sungwon CHOI ,  Sun Jin SONG ,  Boreum JEONG ,  Won Suk CHANG

IPC: C08G73/10 ,  C08J5/18

CPC classification number: C08G73/1067 ,  C08J5/18 ,  C08J2379/08 ,  G02F1/133305

Abstract: A film comprising a polyimide or poly(imide-amide) copolymer, wherein the film has an amplitude of a surface roughness curve of less than or equal to 270 nanometers.

公开(公告)号：US20210032420A1

公开(公告)日：2021-02-04

申请号：US16943166

申请日：2020-07-30

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

Inventor： Boreum JEONG ,  Chanjae AHN ,  Hye Young KONG ,  Sun Jin SONG ,  A Ra JO ,  Kyeong-sik JU

IPC: C08J5/18 ,  B32B27/08 ,  B32B27/34 ,  B32B27/28 ,  B32B7/023

Abstract: A laminated film which includes a first layer including a poly(amide-imide) copolymer, and a second layer laminated on at least one surface of the first layer. The second layer includes a poly(amide-imide) copolymer, polyimide, or a combination thereof, which has an amide content of less than or equal to about 30 mol %. The poly(amide-imide) copolymer included in the first layer has a weight average molecular weight of about 30,000 grams/mole to about 200,000 grams/mole, and the polyimide, the poly(amide-imide) copolymer, or the combination thereof, of the second layer has a weight average molecular weight of about 10,000 grams/mole to about 50,000 grams/mole, and the composition for preparing the laminated film.

公开(公告)号：US20170183462A1

公开(公告)日：2017-06-29

申请号：US15292654

申请日：2016-10-13

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

Inventor： Sun Jin SONG ,  Changae AHN ,  A Ra JO ,  Seung Bum Joseph CHUN

IPC: C08J5/18 ,  C08J7/04 ,  C09J7/02 ,  C08G73/14

CPC classification number: C08J5/18 ,  C08G73/14 ,  C08J7/04 ,  C08J2379/08 ,  C09J7/25 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2205/114 ,  C09J2477/006 ,  C09J2479/086 ,  G02F2001/133331

Abstract: A poly(amide-imide) copolymer film having a compressive modulus of greater than or equal to about 1.8 gigaPascals and a yellowness index of less than or equal to about 3, when measured according to an ASTM E313 standard.

公开(公告)号：US20160237214A1

公开(公告)日：2016-08-18

申请号：US14879287

申请日：2015-10-09

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

Inventor： Sung Woo HONG ,  Byung-hee SOHN ,  Sun Jin SONG ,  Chanjae AHN ,  Kyeong-sik JU ,  Sungwon CHOI

IPC: C08G73/22

CPC classification number: C08G73/22 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1067 ,  C08G73/1085 ,  C08G73/14

Abstract: A composition for preparing poly(imide-benzoxazole) copolymer is described, where the copolymer include: a tetracarboxylic acid dianhydride represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, and a diamine represented by Chemical Formula 3: wherein definitions of groups and variables in Chemical Formulae 1 to 3 are the same as described in the specification.

Abstract translation: 描述了用于制备聚（酰亚胺 - 苯并恶唑）共聚物的组合物，其中共聚物包括：由化学式1表示的四羧酸二酐，由化学式2表示的二胺和由化学式3表示的二胺：其中基团 并且化学式1至3中的变量与说明书中描述的相同。

公开(公告)号：US20210221953A1

公开(公告)日：2021-07-22

申请号：US17205637

申请日：2021-03-18

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

Inventor： A Ra JO ,  Chanjae AHN ,  Sungwon CHOI ,  Sun Jin SONG ,  Boreum JEONG ,  Won Suk CHANG

IPC: C08G73/10 ,  C08J5/18 ,  C09D179/08 ,  C08G73/14

Abstract: A film comprising a polyimide or poly(imide-amide) copolymer, wherein the film has an amplitude of a surface roughness curve of less than or equal to 270 nanometers.

公开(公告)号：US20210016552A1

公开(公告)日：2021-01-21

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 ,  G02B1/14 ,  G06F1/16 ,  G09F9/30 ,  C08J7/04 ,  C08J7/046 ,  B32B27/08 ,  B32B27/28

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：US20190009505A1

公开(公告)日：2019-01-10

申请号：US16027870

申请日：2018-07-05

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

Inventor： Sun Jin SONG ,  Seoung Jin SEO ,  Kyeong-sik JU ,  Jungha CHAE

IPC: B32B27/08 ,  B32B7/12 ,  C08G73/14 ,  G02F1/1333

Abstract: A laminated film including a first film; and a second film disposed on the first film, wherein a tensile modulus of the second film is greater than or equal to a tensile modulus of the first film, and a transmittance of the first film is greater than or equal to a transmittance of the second film, provided that at least one of the tensile modulus of the first film and the tensile modulus of the second film are not equal or the transmittance of the first film and the transmittance of the second film are not equal.

公开(公告)号：US20230173798A1

公开(公告)日：2023-06-08

申请号：US18162801

申请日：2023-02-01

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

Inventor： Hyunjeong JEON ,  A Ra JO ,  Jungha CHAE ,  Sun Jin SONG ,  Boreum JEONG

IPC: B32B27/08 ,  B32B27/28

CPC classification number: B32B27/08 ,  B32B27/281 ,  B32B2255/26 ,  B32B2307/412 ,  B32B2457/20 ,  B32B2307/418 ,  B32B2255/10 ,  B32B2250/03

Abstract: Disclosed are a laminated film including a light transmitting substrate; a hard coating layer; and an optical enhancement layer disposed between the light transmitting substrate and the hard coating layer or at a position facing the hard coating layer with the light transmitting substrate therebetween, wherein the light transmitting substrate includes a polyimide, a poly(amide-imide) copolymer, or a combination thereof, and the optical enhancement layer includes a copolymer comprising a polyimide, and a display device including the laminated film.

公开(公告)号：US20180113350A1

公开(公告)日：2018-04-26

申请号：US15789695

申请日：2017-10-20

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

Inventor： Sang Soo JEE ,  Sun Jin SONG ,  Chanjae AHN ,  Sungwon CHOI

IPC: G02F1/1333 ,  C08G73/14 ,  C08K5/5419 ,  C08L79/08

CPC classification number: G02F1/133305 ,  C08G73/14 ,  C08J7/047 ,  C08J2379/08 ,  C08J2483/06 ,  C08K5/5419 ,  C08L79/08 ,  C09D183/06

Abstract: A flexible plastic substrate includes a film including a poly(amide-imide) copolymer; and a hard coating layer disposed on a first surface of the film, wherein the hard coating layer includes a crosslinked siloxane copolymer, and wherein the flexible plastic substrate has pencil hardness of greater than or equal to 2H under a vertical load of 1 kilogram according to ASTM D3363, a total light transmittance of greater than or equal to about 89% in a wavelength region of 350 nanometers to 750 nanometers.

公开(公告)号：US20160222166A1

公开(公告)日：2016-08-04

申请号：US14741959

申请日：2015-06-17

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

Inventor： Chanjae AHN ,  Sungwon CHOI ,  Sungwoo HONG ,  Byunghee SOHN ,  Sun Jin SONG ,  Kyeong-sik JU

IPC: C08G73/14

CPC classification number: C08G73/14 ,  C08G73/1039

Abstract: A poly(amide-imide) copolymer including a structural unit represented by Chemical Formula 1; a structural unit represented by Chemical Formula 2, and/or an amic acid precursor structural unit which forms the structural unit represented by Chemical Formula 2 through imidization; and a structural unit represented by Chemical Formula 3, and/or an amic acid precursor structural unit which forms the structural unit represented by Chemical Formula 3 through imidization, wherein the poly(amide-imide) copolymer has a modulus of greater than or equal to about 5.5 giga Pascals after being cured, a yellowness index YI of less than or equal to about 3.5, and an increase in yellowness index ΔYI of less than or equal to about 0.7 after being exposed to ultraviolet light for 72 hours: wherein in Chemical Formulae 1 to 3, groups and variables are the same as described in the specification.

Abstract translation: 包含由化学式1表示的结构单元的聚酰胺 - 酰亚胺共聚物; 由化学式2表示的结构单元和/或通过酰亚胺化形成由化学式2表示的结构单元的酰胺酸前体结构单元; 和由化学式3表示的结构单元和/或通过酰亚胺化形成由化学式3表示的结构单元的酰胺酸前体结构单元，其中聚（酰胺 - 酰亚胺）共聚物的模量大于或等于 固化后约5.5千兆帕斯卡，黄色指数YI小于或等于约3.5，黄色指数ΔYI在暴露于紫外线72小时后增加小于或等于约0.7：其中化学式 如图1至图3所示，组和变量与说明书中描述的相同。