公开(公告)号：US20150022878A1

公开(公告)日：2015-01-22

申请号：US14359686

申请日：2014-02-21

申请人： LG CHEM, LTD.

发明人： Suk-Il Youn ,  Sang-Min Kwak ,  Jun-Geun Um ,  Sei-Jung Park ,  Nam-Jeong Lee ,  Joon-Hoon Lee

IPC分类号： G02B5/20 ,  G02B5/30

CPC分类号： G02B5/208 ,  G02B5/3075 ,  G02B5/3091 ,  G02F1/133528

摘要： An optical film and a polarizing plate including the same are provided. The optical film includes an acrylic resin having a glass transition temperature of 120° C. or higher and including an alkyl (meth)acrylate-based repeating unit and a styrene-based repeating unit, and a UV absorbent having a 1% thermal decomposition temperature greater than or equal to a temperature 2.5 times that of the glass transition temperature of the acrylic resin.

摘要翻译： 提供一种光学膜和包括该光学膜的偏振片。 光学膜包括玻璃化转变温度为120℃以上并且包含（甲基）丙烯酸烷基酯重复单元和苯乙烯基重复单元的丙烯酸树脂和具有1％热分解温度的UV吸收剂 大于或等于丙烯酸树脂的玻璃化转变温度的2.5倍的温度。

公开(公告)号：US09804307B2

公开(公告)日：2017-10-31

申请号：US14385643

申请日：2014-06-17

申请人： LG Chem, LTD.

发明人： Jun-Geun Um ,  Nam-Jeong Lee ,  Sang-Min Kwak ,  Suk-Il Youn ,  Sei-Jung Park

IPC分类号： G02B5/20 ,  G02B5/30 ,  G02B5/22 ,  B29D11/00 ,  B32B27/08 ,  B32B27/30 ,  G02B1/14 ,  B29K33/00 ,  B29K105/00

CPC分类号： G02B5/208 ,  B29D11/00644 ,  B29D11/0073 ,  B29K2033/12 ,  B29K2105/0085 ,  B32B27/08 ,  B32B27/308 ,  B32B2250/03 ,  B32B2307/306 ,  B32B2307/402 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2457/20 ,  B32B2551/00 ,  G02B1/14 ,  G02B5/223 ,  G02B5/3033 ,  G02B5/305

摘要： The present disclosure relates to a multilayer optical film including a first film layer formed of a thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of a triazine-based ultraviolet absorber; a second film layer formed of a thermoplastic acrylic resin composition including 0.1 to 5.0 parts by weight of at least one ultraviolet absorber selected from a group consisting of a triazole-based ultraviolet absorber, a benzophenone-based ultraviolet absorber, an oxanilide-based ultraviolet absorber and a cyanoacrylate-based ultraviolet absorber; and a third film layer formed of the thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of the triazine-based ultraviolet absorber, with respect to 100 parts by weight of the thermoplastic acrylic resin composition, a method of manufacturing the same, and a polarizing plate including the same.

公开(公告)号：US20140221571A1

公开(公告)日：2014-08-07

申请号：US14346198

申请日：2012-09-26

申请人： LG CHEM, LTD.

发明人： Jun-Geun Um ,  Nam-Jeong Lee ,  Sang-Min Kwak ,  Beom-Seok Kim ,  Suk-Il Youn

IPC分类号： G02B1/04

CPC分类号： G02B1/04 ,  C08L33/12 ,  C08L35/06 ,  C08L33/10 ,  C08L69/00

摘要： There are provided a resin composition and an optical film formed using the same, and more particularly, to a resin composition comprising a copolymer including alkyl(meth)acrylate units and styrene units and an aromatic resin having carbonate moieties in the main chain, and an optical film formed using the same. Further, a resin composition according to the present invention can provide an optical film which is excellent in optical properties and has superior optical transparency, less haze and superior mechanical strength and superior heat resistance at the same time. Therefore, an optical film formed using a resin composition of the present invention can be used in various applications, e.g., information electronic devices such as display devices.

摘要翻译： 提供一种树脂组合物和使用该树脂组合物形成的光学膜，更具体地说，涉及包含包含（甲基）丙烯酸烷基酯单元和苯乙烯单元的共聚物的共聚物和在主链中具有碳酸酯部分的芳族树脂的树脂组合物， 使用其形成的光学膜。 此外，根据本发明的树脂组合物可以提供光学性能优异并且同时具有优异的光学透明性，较少的雾度和优异的机械强度以及优异的耐热性的光学膜。 因此，使用本发明的树脂组合物形成的光学膜可以用于各种应用，例如显示装置等信息电子装置。

公开(公告)号：US09690020B2

公开(公告)日：2017-06-27

申请号：US14359886

申请日：2014-03-04

申请人： LG CHEM, LTD.

发明人： Suk-Il Youn ,  Nam-Jeong Lee ,  Sang-Min Kwak ,  Kyung-Jae Kwon

IPC分类号： G02B5/20 ,  G02B5/30 ,  G02B5/22 ,  G02B1/04

CPC分类号： G02B5/208 ,  G02B1/04 ,  G02B5/22 ,  G02B5/3025 ,  C08L33/08 ,  C08L33/10

摘要： There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr−1 μm−1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr−1 μm−1 in a wavelength band of 330 to 400 nm, an acrylic resin, and a hindered amine light stabilizer (HALS), and a polarizing plate including the same.

公开(公告)号：US08928976B2

公开(公告)日：2015-01-06

申请号：US13954607

申请日：2013-07-30

申请人： LG Chem, Ltd.

发明人： Byoung-Il Kang ,  Chang-Hun Han ,  Dae-Woo Lee ,  Jae-Bum Seo ,  Jung-Tae Park ,  Eun-Jung Choi ,  Joon-Sik Kim ,  Beom-Suk Kim ,  Nam-Jeong Lee ,  Sang-Min Kwak ,  Jun-Geun Um ,  Suk-Il Youn ,  Joong-Hoon Lee

IPC分类号： G02B5/30 ,  G02F1/1335 ,  C08L33/04 ,  C08L33/08 ,  C08L33/12 ,  G02B1/10 ,  G02B1/04

CPC分类号： G02B1/14 ,  G02B1/04 ,  G02B1/105 ,  C08L33/10 ,  C08L33/08

摘要： Provided are a resin composition and an optical film formed by using the same, and more particularly, a resin composition including 85 to 95 parts by weight of a matrix copolymer resin including an alkyl(meth)acrylate-based unit, an acryl-based unit containing a benzene ring, and a (meth)acrylic acid unit, and 5 to 15 parts by weight of a polymer resin having a molecular weight range of 150,000 to 1,000,000 and an optical film formed by using the composition. A resin composition according to the present invention may provide a protective film for a polarizing plate having excellent heat resistance and toughness as well as excellent optical properties, and thus, an optical film formed by using the resin composition of the present invention may be used in information electronic devices such as display devices for various applications.

摘要翻译： 提供一种树脂组合物和通过使用该树脂组合物形成的光学膜，更具体地，涉及包含85〜95重量份的包含（甲基）丙烯酸烷基酯单元，基于丙烯酸的单元的基体共聚物树脂的树脂组合物 含有苯环和（甲基）丙烯酸单元，和5〜15重量份的分子量范围为15万〜100万的聚合物树脂和使用该组合物形成的光学膜。 根据本发明的树脂组合物可以提供具有优异的耐热性和韧性以及优异的光学性能的偏振片用保护膜，因此通过使用本发明的树脂组合物形成的光学膜可以用于 信息电子设备，如各种应用的显示设备。

公开(公告)号：US09581734B2

公开(公告)日：2017-02-28

申请号：US14358981

申请日：2014-03-07

申请人： LG CHEM, LTD.

发明人： Suk-Il Youn ,  Sang-Min Kwak ,  Kyung-Jae Kwon ,  Nam-Jeong Lee

IPC分类号： G02B1/14 ,  G02B1/04 ,  C08K5/3492 ,  C08L33/12 ,  C08J5/18 ,  G02B5/30

CPC分类号： G02B1/14 ,  C08J5/18 ,  C08J2333/06 ,  C08J2333/24 ,  C08K5/3492 ,  C08L33/12 ,  G02B1/04 ,  G02B5/305 ,  C08L33/06

摘要： There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr−1μm−1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr−1μm−1 in a wavelength band of 330 to 400 nm, and acrylic resin, wherein the content of the ultraviolet light absorbent is 0.3 to 1.0 parts by weight with respect to 100 parts by weight of the acrylic resin, and a polarizing plate including the same.

摘要翻译： 提供了一种光学膜，其包括紫外光吸收剂，其具有在290至320nm的波长带中具有0.07至0.10phr-1μm-1的最大吸收系数的第一峰和具有0.11至最大吸收系数的第二峰 在330〜400nm的波长范围内为0.16phr-1μm-1，丙烯酸树脂，其中紫外线吸收剂的含量相对于100重量份丙烯酸树脂为0.3〜1.0重量份， 板包括相同。

公开(公告)号：US09297944B2

公开(公告)日：2016-03-29

申请号：US13981595

申请日：2012-09-21

申请人： LG CHEM, LTD.

发明人： Jun-Wuk Park ,  Sang-Min Kwak ,  Jun-Geun Um ,  Nam-Jeong Lee ,  Suk-Il Youn

IPC分类号： G02B5/30

CPC分类号： G02B5/3083 ,  B32B2457/202

摘要： Provided are a composition for an optical film comprising 40 wt % to 94 wt % of an acrylic resin; 5 wt % to 40 wt % of a styrene-acrylonitrile copolymer having a weight-average molecular weight less than 1,000,000; and 1 wt % to 20 wt % of an ultra-high molecular weight styrene-acrylonitrile copolymer having a weight-average molecular weight ranging from 1,000,000 to 9,000,000, and an optical film using the composition.

摘要翻译： 提供一种用于光学膜的组合物，其包含40重量％至94重量％的丙烯酸树脂; 5重量％至40重量％的重均分子量小于1,000,000的苯乙烯 - 丙烯腈共聚物; 和1重量％至20重量％的重均分子量为1,000,000至9,000,000的超高分子量苯乙烯 - 丙烯腈共聚物，以及使用该组合物的光学膜。