公开(公告)号：US11117990B2

公开(公告)日：2021-09-14

申请号：US16491214

申请日：2018-12-20

Applicant: LG Chem, Ltd.

Inventor： Taejin Kim ,  Ha Na Park ,  Seong Min Chae ,  In Yong Jung ,  Daeyeon Lee ,  Jihwa Ye ,  Heekwang Park

IPC: C08F110/06 ,  C08F4/64 ,  C08F4/76 ,  D04H1/4291 ,  D04H3/007 ,  C08F4/6192

Abstract: A homopolypropylene has i) a molecular weight distribution of less than 2.4; ii) a melt index (measured at 230° C. under a load of 2.16 kg in accordance with ASTM D1238) of 5 to 3000 g/10 min; iii) a remaining stress ratio of 0.5% or less; and iv) a complex viscosity of 5 to 600 Pa·s at an angular frequency of 1 rad/s and a complex viscosity of 5 to 300 Pa·s at an angular frequency of 100 rad/s. A method for preparing the homopolyproylene is also provided. A molded article and a non-woven fabric are also provided.

公开(公告)号：US20180298122A1

公开(公告)日：2018-10-18

申请号：US15765762

申请日：2017-02-13

Applicant: LG Chem, Ltd.

Inventor： Ji Ho Choi ,  In Yong Jung ,  Kyung Seop Noh ,  Won-Sang Lee ,  Sang Jin Jeon ,  Sang Eun An ,  Sang Hoon Lee

IPC: C08F10/06 ,  C08F4/6592 ,  C08F4/648

Abstract: The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 μg/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.

公开(公告)号：US20200031962A1

公开(公告)日：2020-01-30

申请号：US16491214

申请日：2018-12-20

Applicant: LG Chem, Ltd.

Inventor： Taejin Kim ,  Ha Na Park ,  Seong Min Chae ,  In Yong Jung ,  Daeyeon Lee ,  Jihwa Ye ,  Heekwang Park

IPC: C08F110/06 ,  D04H1/4291 ,  D04H3/007

Abstract: A homopolypropylene has i) a molecular weight distribution of less than 2.4; ii) a melt index (measured at 230° C. under a load of 2.16 kg in accordance with ASTM D1238) of 5 to 3000 g/10 min; iii) a remaining stress ratio of 0.5% or less; and iv) a complex viscosity of 5 to 600 Pa·s at an angular frequency of 1 rad/s and a complex viscosity of 5 to 300 Pa·s at an angular frequency of 100 rad/s. A method for preparing the homopolyproylene is also provided. A molded article and a non-woven fabric are also provided.

公开(公告)号：US11384180B2

公开(公告)日：2022-07-12

申请号：US16464871

申请日：2018-10-01

Applicant: LG Chem, Ltd.

Inventor： Taejin Kim ,  Seong Min Chae ,  Kyung Seop Noh ,  Sang Jin Jeon ,  In Yong Jung

IPC: C08F110/06 ,  C08F4/643 ,  C08F4/659 ,  C08F4/6592 ,  C07F17/00 ,  A47L13/16 ,  D04H1/4291 ,  D04H3/007

Abstract: The present invention provides a homopolypropylene having high strength and a low content of low molecular weights together with excellent processability, and a preparation method thereof.

公开(公告)号：US10604597B2

公开(公告)日：2020-03-31

申请号：US15765762

申请日：2017-02-13

Applicant: LG Chem, Ltd.

Inventor： Ji Ho Choi ,  In Yong Jung ,  Kyung Seop Noh ,  Won-Sang Lee ,  Sang Jin Jeon ,  Sang Eun An ,  Sang Hoon Lee

IPC: C08F110/06 ,  C08F4/653 ,  C08F4/6592 ,  C08L23/12 ,  C08F10/06 ,  C08F4/648 ,  C08F4/659

Abstract: The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 μg/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.