公开(公告)号：US10995214B2

公开(公告)日：2021-05-04

申请号：US16305368

申请日：2017-10-18

申请人： LG CHEM, LTD.

发明人： Byoungkue Chun ,  Un Ko ,  Young Wook Son ,  Moo Ho Hong ,  Hyong Min Bahn ,  Tae Yun Ko

IPC分类号： C08L69/00 ,  C08L33/06 ,  C08K5/5373 ,  C08K5/357 ,  C08K5/10 ,  G02B1/04

摘要： The present invention relates to a polycarbonate resin composition and an optical molded article comprising the same. The polycarbonate resin composition according to the present invention is excellent in transmittance and color stability and thus can ensure high transparency, and further can enhance the stability of a polycarbonate resin.

公开(公告)号：US10907040B2

公开(公告)日：2021-02-02

申请号：US16315578

申请日：2017-10-17

申请人： LG CHEM, LTD.

发明人： Hyong Min Bahn ,  Young Young Hwang ,  Moo Ho Hong ,  Jung Jun Park ,  Ki Jae Lee

IPC分类号： C08L69/00

摘要： The present invention relates to a polycarbonate composition and an article including the same. The polycarbonate composition according to the present invention includes a copolycarbonate having a specific siloxane structure and a branched or non-branched polycarbonate, and simultaneously uses a flame retardant and an organophosphorus compound, thereby being able to exhibit excellent flame retardancy and impact strength and also to maintain the impact strength even under high temperature and high humidity conditions for a long period of time.

公开(公告)号：US10174194B2

公开(公告)日：2019-01-08

申请号：US15319257

申请日：2015-12-02

申请人： LG CHEM, LTD.

发明人： Byoung Kyu Chun ,  Hyong Min Bahn ,  Young Young Hwang ,  Jung Jun Park ,  Moo Ho Hong ,  Ki Jae Lee ,  Un Ko ,  Young Wook Son

IPC分类号： C08G64/18 ,  C08L69/00 ,  C08G64/38 ,  C08G77/448 ,  C08J5/00 ,  C08G64/16 ,  C08G64/06 ,  C08G64/30 ,  C08G64/08 ,  C08K5/3475 ,  C08L83/04 ,  C08G64/24 ,  C08L83/10 ,  C08K5/00 ,  C08G64/22 ,  C08G77/14 ,  C08L83/06 ,  C08J5/08 ,  C08K5/521 ,  C08L51/04 ,  C08K5/42 ,  C09K21/14 ,  C08G77/20

摘要： Disclosed is a copolycarbonate having an aromatic polycarbonate-based first repeating unit and one or more aromatic polycarbonate-based second repeating units having siloxane bonds, where the copolycarbonate provides an improved residence heat stability, and where the second repeating unit includes a repeating unit represented by Chemical Formula 2 and a repeating unit represented by Chemical Formula 3:

公开(公告)号：US09328197B2

公开(公告)日：2016-05-03

申请号：US14443941

申请日：2014-09-30

申请人： LG CHEM, LTD.

发明人： Un Ko ,  Hyong Min Bahn ,  Moo Ho Hong ,  Byoung Kue Chun ,  Young Young Hwang ,  Min Jeong Kim ,  Jung Jun Park ,  Ki Jae Lee

IPC分类号： C08G63/00 ,  C08G64/16 ,  C08G64/24 ,  C08G64/28 ,  C08G64/06 ,  C08G64/18 ,  C08G63/02

CPC分类号： C08G64/1608 ,  C08G64/06 ,  C08G64/183 ,  C08G64/24 ,  C08G64/28

摘要： Disclosed are polycarbonate having high fluidity through inclusion of an aliphatic polyhydric alcohol-substituted diphenol compound in a polycarbonate backbone and a method of preparing the same. The polycarbonate is polymerized by comprising a diphenol mixture and a carbonate precursor, the diphenol mixture comprising an aliphatic polyhydric alcohol-substituted diphenol compound according to Formula 1 and a bisphenol compound.

摘要翻译： 公开了通过在聚碳酸酯骨架中包含脂族多元醇取代的二酚化合物而具有高流动性的聚碳酸酯及其制备方法。 聚碳酸酯通过包含二酚混合物和碳酸酯前体而聚合，所述二酚混合物包含根据式1的脂族多元醇取代的二酚化合物和双酚化合物。

公开(公告)号：US11066516B2

公开(公告)日：2021-07-20

申请号：US16439099

申请日：2019-06-12

申请人： LG CHEM, LTD.

发明人： Byoungkue Chun ,  Moo Ho Hong ,  Hyong Min Bahn ,  Un Ko

IPC分类号： C08G64/06 ,  C08G81/02 ,  C08L69/00 ,  C08L71/02 ,  C08L63/00 ,  C08K3/00 ,  C08K5/00 ,  C08L33/06 ,  C08L25/06 ,  C08L33/08 ,  C08L33/10

摘要： The present invention relates to a polycarbonate resin composition for a light guide plate and an optical molded article using the same. The polycarbonate resin composition according to the present invention is excellent in transmittance and color tone uniformity required as the light guide plate, and also is excellent in processability and thus can be usefully used as a material of the light guide plate.

公开(公告)号：US10526445B2

公开(公告)日：2020-01-07

申请号：US15528061

申请日：2016-11-04

申请人： LG CHEM, LTD.

发明人： Young Young Hwang ,  Hyong Min Bahn ,  Jung Jun Park ,  Moo Ho Hong

IPC分类号： C08G64/18 ,  C08L69/00 ,  C08G77/448 ,  C08G64/28 ,  B29C45/00 ,  B29K69/00 ,  B29K105/00

摘要： The present disclosure relates to a copolycarbonate including repeating units of Chemical Formulas 1, 2 and 3; and a composition comprising the same:

公开(公告)号：US10364327B2

公开(公告)日：2019-07-30

申请号：US15555914

申请日：2016-12-27

申请人： LG CHEM, LTD.

发明人： Young Young Hwang ,  Hyong Min Bahn ,  Jung Jun Park ,  Ki Jae Lee ,  Moo Ho Hong

IPC分类号： C08G77/14 ,  C08G64/18 ,  C08G77/448 ,  C08J5/00 ,  C08G64/16 ,  C08G77/04 ,  C08G77/16 ,  C08G77/24

摘要： The present invention relates to a novel polyorganosiloxane capable of producing a copolycarbonate having improved chemical resistance and flame retardancy while maintaining the intrinsic physical properties of a polycarbonate resin and to a copolycarbonate prepared by using the same.

公开(公告)号：US10040937B2

公开(公告)日：2018-08-07

申请号：US15501098

申请日：2016-03-31

申请人： LG CHEM, LTD.

发明人： Hyong Min Bahn ,  Byoung Kyu Chun ,  Un Ko ,  Moo Ho Hong ,  Young Young Hwang ,  Min Jeong Kim ,  Jung Jun Park ,  Ki Jae Lee ,  Young Wook Son

IPC分类号： C08L69/00 ,  G02B6/00 ,  G02B1/04 ,  F21V8/00

CPC分类号： C08L69/00 ,  C08G65/20 ,  C08L33/02 ,  C08L63/10 ,  C08L71/02 ,  C08L2205/03 ,  G02B1/045 ,  G02B6/0065 ,  C08L33/068

摘要： The present invention relates to a polycarbonate resin composition and an optical molded product comprising the same. The polycarbonate resin composition according to the present invention is excellent in transmittance and color uniformity which are required for a light guide plate, and also excellent in processability. Thus, it can be effectively used as a material of the light guide plate.

公开(公告)号：US09969841B2

公开(公告)日：2018-05-15

申请号：US15025176

申请日：2015-11-16

申请人： LG CHEM, LTD.

发明人： Young Young Hwang ,  Hyong Min Bahn ,  Jung Jun Park ,  Moo Ho Hong ,  Ki Jae Lee ,  Byoung Kyu Chun ,  Un Ko ,  Young Wook Son

IPC分类号： C08G64/08 ,  C08G77/448 ,  C08G64/18 ,  C08G64/22 ,  C08G64/30 ,  C08L69/00 ,  C08G77/12 ,  C08G77/38

CPC分类号： C08G64/186 ,  C08G64/18 ,  C08G64/22 ,  C08G64/30 ,  C08G64/307 ,  C08G77/12 ,  C08G77/38 ,  C08G77/448 ,  C08L69/00

摘要： The present invention relates to a copolycarbonate and a molded article comprising the same. The copolycarbonates according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and has effects of improving impact strength at room temperature, impact strength at low temperature, and melt index properties.

公开(公告)号：US09732186B2

公开(公告)日：2017-08-15

申请号：US14914153

申请日：2015-09-04

申请人： LG CHEM, LTD.

发明人： Hyong Min Bahn ,  Moo Ho Hong ,  Jung Jun Park ,  Byoung Kyu Chun ,  Young Young Hwang ,  Min Jeong Kim ,  Un Ko ,  Ki Jae Lee

IPC分类号： C08L69/00 ,  C08G64/18 ,  C08G64/22 ,  C08G77/14 ,  C08L83/06 ,  C08G64/30 ,  C08G77/448

CPC分类号： C08G64/186 ,  C08G64/22 ,  C08G64/307 ,  C08G77/14 ,  C08G77/448 ,  C08L69/00 ,  C08L83/06 ,  C08L2205/02 ,  C08L83/10

摘要： The present invention relates to copolycarbonates and a composition comprising the same. The copolycarbonate according to the present invention has a structure in which specific siloxane compounds are introduced in the main chain of polycarbonate and thus exhibits the effects of improving impact strength at room temperature, impact strength at low-temperature, and melt index.