公开(公告)号：US20180217039A1

公开(公告)日：2018-08-02

申请号：US15749870

申请日：2017-03-09

申请人： LG CHEM, LTD.

发明人： Bog Ki HONG ,  Sung Hyun PARK ,  Hyun Sup LEE ,  Yi Young CHOI ,  Myung Han LEE ,  Soon Ho SUN

IPC分类号： G01N3/08

摘要： The present invention relates to a method for evaluating the properties of a plastic resin molded product, more specifically to a novel method for evaluating the properties of a plastic resin molded product that can exactly derive impact resistance of practically prepared molded products, using the property measurement values by the existing ASTM.

公开(公告)号：US20180030180A1

公开(公告)日：2018-02-01

申请号：US15549103

申请日：2016-04-12

申请人： LG CHEM, LTD.

发明人： Yu Taek SUNG ,  Soon Ho SUN ,  Sol CHO ,  Yi Young CHOI ,  Ki Soo LEE

IPC分类号： C08F210/16

CPC分类号： C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2420/02 ,  C08F2420/06 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/07 ,  C08F2500/09 ,  C08F2500/12

摘要： The present invention relates to an ethylene/alpha-olefin copolymer. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and surface characteristics and thus can be usefully applied to various products.

公开(公告)号：US20170233511A1

公开(公告)日：2017-08-17

申请号：US15501415

申请日：2016-04-15

申请人： LG CHEM, LTD.

发明人： Soon Ho SUN ,  Yi Young CHOI ,  Ki Soo LEE ,  Eun Kyoung SONG ,  Yu Taek SUNG ,  Ye Jin LEE ,  Chang Woan HAN ,  Sol CHO

IPC分类号： C08F210/16

CPC分类号： C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08L23/08 ,  C08F210/08 ,  C08F2500/01 ,  C08F2500/07 ,  C08F2500/12 ,  C08F4/65904

摘要： The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and is therefore suitable for producing products by an injection molding method.

公开(公告)号：US20180223009A1

公开(公告)日：2018-08-09

申请号：US15504269

申请日：2015-09-04

申请人： LG CHEM, LTD.

发明人： Joong Soo KIM ,  Yu Taek SUNG ,  Ki Soo LEE ,  Dae Sik HONG ,  Ki Heon SONG ,  Eun Kyoung SONG ,  Heon Yong KWON ,  Yong Ho LEE ,  Dong Hoon JEONG ,  Soon Ho SUN ,  Sun Mi KIM

IPC分类号： C08F4/648 ,  C08F4/6592 ,  C08F210/16 ,  C08F10/02 ,  B01J27/24

CPC分类号： C08F4/648 ,  B01J27/24 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F10/02 ,  C08F210/16 ,  C08F2420/02 ,  C08F2420/06 ,  C08F2500/02 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2800/10 ,  C08L23/0815 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/10

摘要： Provided is an olefin-based polymer with excellent processability. The olefin-based polymer according to the present invention has a high molecular weight and a broad molecular weight distribution to show excellent processability and improved mechanical properties, thereby being usefully applied according to the intended use.

公开(公告)号：US20180016370A1

公开(公告)日：2018-01-18

申请号：US15548736

申请日：2016-03-28

申请人： LG CHEM LTD

发明人： Young Suk YOU ,  Se Young KIM ,  Soon Ho SUN ,  Eun Kyoung SONG ,  Seung Mi LEE ,  Yi Young CHOI ,  Ki Soo LEE ,  Sun Mi KIM

IPC分类号： C08F110/02 ,  D01F6/04

摘要： The present invention relates to polyolefin powder for preparing fiber, and fiber comprising the same. According to the present invention, provided is polyolefin, which exhibits a high molecular weight range and narrow molecular weight distribution and in which the formation of a gel deteriorating the quality of fiber is reduced. Therefore, by using the polyolefin, the present invention exhibits molecular weight, density and narrow molecular weight distribution, which are equivalent to those of conventional polyolefin, but the number of gels having a large particle diameter is remarkably reduced, and therefore, the present invention can provide fiber having excellent tenacity and tensile strength half-life.

公开(公告)号：US20170320978A1

公开(公告)日：2017-11-09

申请号：US15520359

申请日：2015-12-02

申请人： LG CHEM, LTD.

发明人： Dong Hoon JEONG ,  Heon Yong KWON ,  Yu Taek SUNG ,  Ki Soo LEE ,  Dae Sik HONG ,  Eun Young SHIN ,  Soon Ho SUN

IPC分类号： C08F10/14 ,  C08F10/08

CPC分类号： C08F10/14 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/08 ,  C08F210/16 ,  C08F2420/02 ,  C08F2500/12 ,  C08F4/65927 ,  C08F4/6592 ,  C08F2/14 ,  C08F210/14 ,  C08F2500/18 ,  C08F2500/11 ,  C08F2500/26

摘要： Provided are an olefin-based polymer having excellent melt strength and a film including the same. The olefin-based polymer according to the present invention may have excellent processability, haze and mechanical properties, and in particular, high melt strength, thereby being usefully applied to films, etc.

公开(公告)号：US20170044278A1

公开(公告)日：2017-02-16

申请号：US15304459

申请日：2015-06-15

申请人： LG CHEM, LTD

发明人： Ye Jin LEE ,  Yi Young CHOI ,  Ki Soo LEE ,  Ki Heon SONG ,  Se Young KIM ,  Soon Ho SUN ,  Sun MI KIM ,  Young YOU

IPC分类号： C08F10/14

摘要： The present invention relates to polyolefin that has high molecular weight, wide molecular weight distribution and high long chain branch content, and thus, has excellent environmental crack resistance and processibility. The polyolefin of the present invention has excellent processibility and stability, and thus, may be preferably used as a food container, a bottle cap, and the like.

摘要翻译： 本发明涉及具有高分子量，宽分子量分布和高长支链含量的聚烯烃，因此具有优异的耐环境开裂性和加工性。 本发明的聚烯烃具有优异的加工性和稳定性，因此可优选用作食品容器，瓶盖等。

公开(公告)号：US20200282609A1

公开(公告)日：2020-09-10

申请号：US16610731

申请日：2017-09-29

申请人： LG CHEM, LTD

发明人： Hyun Sup LEE ,  Soon Ho SUN ,  Yi Young CHOI ,  Ki Soo LEE ,  Bog Ki HONG ,  Sung Hyun PARK ,  Myung Han LEE ,  Chang Kwon CHUNG

IPC分类号： B29C45/00 ,  B29C45/76

摘要： The present application relates to a method for selecting an injection-molded article and a method for manufacturing an injection-molded article. An injection-molded article having excellent crack stability can be produced using the material selected using the described selection method without having to manufacture test articles through injection molding

公开(公告)号：US20190211122A1

公开(公告)日：2019-07-11

申请号：US16323991

申请日：2017-10-25

申请人： LG CHEM, LTD.

发明人： Jeong Kyu LEE ,  Pum Suk PARK ,  In Young SONG ,  Sung Joon OH ,  Yi Young CHOI ,  Soon Ho SUN

IPC分类号： C08F210/16

CPC分类号： C08F210/16 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2420/06 ,  C08L23/08 ,  C08L23/16 ,  C08F210/08 ,  C08F2500/02 ,  C08F2500/13

摘要： The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.

公开(公告)号：US20190010256A1

公开(公告)日：2019-01-10

申请号：US15748798

申请日：2017-02-06

申请人： LG CHEM, LTD.

发明人： Ye Jin LEE ,  Yi Young CHOI ,  Ki Soo LEE ,  Se Young KIM ,  Sung Min LEE ,  Chang Woan HAN ,  Soon Ho SUN

IPC分类号： C08F4/6592 ,  C08F10/02 ,  C08F4/659 ,  B01J31/22 ,  C08F4/02

摘要： The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability.