公开(公告)号：US20180094084A1

公开(公告)日：2018-04-05

申请号：US15566098

申请日：2016-06-13

申请人： LG CHEM, LTD.

发明人： Young Suk YOU ,  Kyung Jin CHO ,  Hyuck Ju KWON ,  Yi Young CHOI ,  Ki Soo LEE ,  Eun Kyoung SONG ,  Woo Ri KIM

IPC分类号： C08F4/6592 ,  C08F4/02 ,  C08F10/02 ,  C08F10/14 ,  C08F10/06

摘要： A method of preparing a supported metallocene catalyst capable of more effectively preparing a polyolefin which may be preferably used for blow molding, etc., because its molecular weight distribution is such that polymer elasticity is increased to improve swell, is provided.

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：US20180194873A1

公开(公告)日：2018-07-12

申请号：US15742001

申请日：2017-01-26

申请人： LG CHEM, LTD.

发明人： Hyun Jee KWON ,  Heon Yong KWON ,  Dae Sik HONG ,  Dae Hwan KIM ,  Sung Min LEE ,  Eun Young SHIN ,  Sung Ho PARK ,  Young Suk YOU ,  Jin Young LEE

IPC分类号： C08F4/6592 ,  C08F4/52 ,  C08F10/02 ,  C08F10/06 ,  C08F10/08 ,  C08F10/14 ,  C08F12/08 ,  C08F12/36 ,  C08F36/04 ,  C08F36/06

摘要： The present invention relates to a supported hybrid catalyst and a method for preparing olefin polymer using the same. Using the supported hybrid catalyst, olefin polymer that maintains excellent mechanical strength of olefin polymer polymerized with the existing metallocene catalyst, but exhibits remarkably improved processibility compared to the existing olefin polymer, can be provided.

公开(公告)号：US20180037676A1

公开(公告)日：2018-02-08

申请号：US15552658

申请日：2016-06-10

申请人： LG CHEM, LTD.

发明人： Eun Kyoung SONG ,  Yong Ho LEE ,  Kyung Jin CHO ,  Yi Young CHOI ,  Ki Soo LEE ,  Heon Yong KWON ,  Young Suk YOU

IPC分类号： C08F4/6192 ,  C08F4/659 ,  C08F4/649 ,  C08F10/00 ,  C08F4/02

CPC分类号： C08F4/61922 ,  C08F4/02 ,  C08F4/649 ,  C08F4/659 ,  C08F4/65912 ,  C08F10/00 ,  C08F2410/01 ,  C08F2410/03 ,  C08F2420/02 ,  C08F2500/04 ,  C08F210/16 ,  C08F4/65925 ,  C08F4/65916 ,  C08F4/6592 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/05 ,  C08F2500/02 ,  C08F4/65904 ,  C08F2/06

摘要： The present invention provides a method for preparing a polyolefin having a broad molecular weight distribution. More specifically, the present invention provides a method for preparing a polyolefin having a broad molecular weight distribution and an ultra-high molecular weight in which an organometallic complex containing a specific Ti—Al complex structure is used as a molecular weight controller (i.e., molecular weight enhance) in the polymerization of an olefin monomer, thereby enabling both solution polymerization and slurry polymerization, particularly enabling the molecular weight distribution to be more readily and effectively controlled.

公开(公告)号：US20170291969A1

公开(公告)日：2017-10-12

申请号：US15511944

申请日：2015-09-30

申请人： LG CHEM, LTD.

发明人： Seung Mi LEE ,  Yi Young CHOI ,  Dae Sik HONG ,  Eun Kyoung SONG ,  Heon Yong KWON ,  Young Suk YOU ,  Ki Soo LEE ,  Ki Heon SONG

IPC分类号： C08F110/02

CPC分类号： C08F110/02 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/16 ,  C08F2410/01 ,  C08F2420/01 ,  D01F6/04 ,  C08F10/02 ,  C08F4/65904 ,  C08F2500/03

摘要： The present invention relates to a polyolefin which exhibits a narrow molecular weight distribution, high strength, and a high stretching ratio, and a preparation method therefor. According to the present invention, it is possible to provide polyethylene with high catalyst activity, high molecular weight, and controlled molecular weight distribution by using, in polymerization of an olefin monomer, a hybrid supported metallocene catalyst in which a borate compound is used as a second cocatalyst. In addition, if the polyolefin is processed, it is possible to produce a fiber with excellent mechanical properties and an excellent stretching ratio.