-
公开(公告)号：US20190086308A1
公开(公告)日：2019-03-21
申请号：US16082725
申请日：2017-11-03
申请人： LG Chem, Ltd.
发明人： Hyun Sup Lee , Sung Hyun Park , Joong Soo Kim , Dae Sik Hong , Myung Han Lee , Young Suk You
摘要： The present disclosure relates to an assessment method for a polyethylene resin, and more specifically to a new assessment method for a polyethylene resin which can accurately determine long-term durability of a molded article by using physical properties that are easily measurable in a short time.
-
公开(公告)号：US10962522B2
公开(公告)日：2021-03-30
申请号：US15768968
申请日：2017-10-12
申请人： LG Chem, Ltd.
发明人： Yoon Ki Hong , Hyuck Ju Kwon , Eun Kyoung Song , Dae Sik Hong , Ye Jin Lee , Joong Soo Kim , Eun Young Shin , Young Suk You , Ki Soo Lee
摘要： The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting the processability of polymers using a molecular weight distribution curve.
-
公开(公告)号：US10280239B2
公开(公告)日：2019-05-07
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： C08F4/653 , C08F4/6592 , C08F210/16 , C08L23/08 , C08F110/02 , D01F6/04 , C08F4/659
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.
-
4.发明申请公开(公告)号：US20200223964A1
公开(公告)日：2020-07-16
申请号：US16647751
申请日：2018-09-28
申请人： LG Chem, Ltd.
发明人： Sung Hyun Park , Hyun Sup Lee , Jong Sang Park , Joong Soo Kim , Young Suk You , Dae Sik Hong , Myung Han Lee
IPC分类号： C08F210/16 , G01N3/56 , G01N33/44
摘要： A method for evaluating long-term durability of a resin for piping is provided. Unlike the conventional FNCT evaluation method requiring a long period of time, the method disclosed herein is capable of predicting long-term durability of a resin for piping in a short time, by a simple calculation using a content of tie molecules, an entanglement molecular weight (Me) and a content of ultrahigh molecular weight components. In addition, the olefinic polymer is configured to have a predetermined relationship in relation to the content of tie molecules, the entanglement molecular weight (Me) and the content of ultrahigh molecular weight components, whereby the polymer of the present application can be used in the manufacture of a heating pipe requiring excellent long-term durability.
-
公开(公告)号：US10669356B2
公开(公告)日：2020-06-02
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： C08F4/653 , C08F4/6592 , C08F210/16 , C08L23/08 , C08F110/02 , C08F4/52 , C08F10/02 , C08F10/06 , C08F10/08 , C08F10/14 , C08F12/08 , C08F12/36 , C08F36/04 , C08F36/06 , C08F4/659
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：US11697699B2
公开(公告)日：2023-07-11
申请号：US16647751
申请日：2018-09-28
申请人： LG Chem, Ltd.
发明人： Sung Hyun Park , Hyun Sup Lee , Jong Sang Park , Joong Soo Kim , Young Suk You , Dae Sik Hong , Myung Han Lee
IPC分类号： G01N3/36 , G01N33/44 , C08L23/08 , C08F210/16 , G01N3/56 , C08F110/04
CPC分类号： C08F210/16 , G01N3/56 , G01N33/442 , C08F110/04 , C08L23/08 , G01N2203/0071
摘要： A method for evaluating long-term durability of a resin for piping is provided. Unlike the conventional FNCT evaluation method requiring a long period of time, the method disclosed herein is capable of predicting long-term durability of a resin for piping in a short time, by a simple calculation using a content of tie molecules, an entanglement molecular weight (Me) and a content of ultrahigh molecular weight components. In addition, the olefinic polymer is configured to have a predetermined relationship in relation to the content of tie molecules, the entanglement molecular weight (Me) and the content of ultrahigh molecular weight components, whereby the polymer of the present application can be used in the manufacture of a heating pipe requiring excellent long-term durability.
-
公开(公告)号：US10775287B2
公开(公告)日：2020-09-15
申请号：US16082725
申请日：2017-11-03
申请人： LG Chem, Ltd.
发明人： Hyun Sup Lee , Sung Hyun Park , Joong Soo Kim , Dae Sik Hong , Myung Han Lee , Young Suk You
摘要： The present disclosure relates to an assessment method for a polyethylene resin, and more specifically to a new assessment method for a polyethylene resin which can accurately determine long-term durability of a molded article by using physical properties that are easily measurable in a short time.
-
公开(公告)号：US10562994B2
公开(公告)日：2020-02-18
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 , C08F4/6592 , D01F6/04 , C08F4/659
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：US10570221B2
公开(公告)日：2020-02-25
申请号：US15764758
申请日：2016-12-22
申请人： LG Chem, Ltd.
发明人： Young Suk You , Sung Ho Park , Ki Soo Lee , Heon Yong Kwon , Dae Sik Hong , Eun Young Shin , Hyun Jee Kwon , Jin Young Lee
IPC分类号： C08F4/6592 , C08F110/02 , C08F10/00 , B01J31/22 , C08F2/34 , C08F10/02 , C08F10/04 , C08F10/14 , C08F210/16 , C08F4/10 , C08F4/12
摘要： The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same.
-
公开(公告)号：US20190064051A1
公开(公告)日：2019-02-28
申请号：US15773663
申请日：2017-10-12
申请人： LG Chem, Ltd.
发明人： Yoon Ki Hong , Hyuck Ju Kwon , Eun Kyoung Song , Dae Sik Hong , Ye Jin Lee , Joong Soo Kim , Eun Young Shin , Young Suk You , Ki Soo Lee
摘要： The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting long-term stability of polymers using a molecular weight distribution curve.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.013 秒)
