公开(公告)号：US20200207968A1

公开(公告)日：2020-07-02

申请号：US16616168

申请日：2018-07-11

Applicant: LG Chem, Ltd.

Inventor： Hee Kwang Park ,  Kyung Seop Noh ,  Sang Jin Jeon ,  Hyunsup Lee ,  In Sun Lee ,  Jin Hyun Park ,  Changkwon Chung

IPC: C08L23/20 ,  C08F210/08 ,  C08F210/06 ,  C08F4/6592

Abstract: The present invention relates to a propylene-butene copolymer resin composition used for non-woven fabric, a method of preparing the same, and spunbond non-woven fabric manufactured using the composition, and particularly, by optimizing a content of 1-butene in a metallocene polypropylene resin composition to 0.5 to 5.0 wt %, while simultaneously optimizing both of a melt index and a residual stress ratio of the resin composition, has a merit of having a reduced modulus together with a high conversion rate to manufacture non-woven fabric which is softer than existing products while maintaining high strength.

公开(公告)号：US11081683B2

公开(公告)日：2021-08-03

申请号：US16474819

申请日：2018-07-02

Applicant: LG Chem, Ltd.

Inventor： Jeongyong Lee ,  Ki Yeon Jo ,  Hyejin Han ,  Sangeun Kim ,  Myunghan Lee ,  Changkwon Chung

IPC: H01M4/04 ,  H01M4/1393 ,  H01M10/48 ,  H01M4/02

Abstract: A method for predicting the likelihood of coagulation of active material particles contained in a slurry for electrode preparation includes measuring rheological properties before and after the slurry is subjected to a shear. The estimation method enables a prediction of filter clogging with a slurry, and thus makes it possible to estimate the likelihood of filter clogging with a slurry without passing the slurry directly through the filter, thereby improving the efficiency of a battery manufacturing process.

公开(公告)号：US11198779B2

公开(公告)日：2021-12-14

申请号：US16616168

申请日：2018-07-11

Applicant: LG Chem, Ltd.

Inventor： Hee Kwang Park ,  Kyung Seop Noh ,  Sang Jin Jeon ,  Hyunsup Lee ,  In Sun Lee ,  Jin Hyun Park ,  Changkwon Chung

IPC: C08F210/06 ,  C08F210/08 ,  C08F4/6592 ,  C08L23/20

Abstract: The present invention relates to a propylene-butene copolymer resin composition used for non-woven fabric, a method of preparing the same, and spunbond non-woven fabric manufactured using the composition, and particularly, by optimizing a content of 1-buttene in a metallocene polypropylene resin composition to 0.5 to 5.0 wt %, while simultaneously optimizing both of a melt index and a residual stress ratio of the resin composition, has a merit of having a reduced modulus together with a high conversion rate to manufacture non-woven fabric which is softer than existing products while maintaining high strength.