公开(公告)号：US11427509B2

公开(公告)日：2022-08-30

申请号：US16095804

申请日：2017-12-08

申请人： LG Chem, Ltd.

发明人： Chang Bum Ko ,  Dong Jo Ryu ,  Im Gyu Kim ,  Hyo Min Kim

IPC分类号： C04B24/26 ,  C04B26/10 ,  C04B24/32 ,  C08L33/08 ,  C08F220/26 ,  C08F216/14 ,  C08F220/28 ,  C04B103/30 ,  C04B103/32 ,  C08F222/10

摘要： The present disclosure relates to a cement additive composition including a polycarboxylic acid-based copolymer. When the cement additive composition of the present disclosure is used for cement formulation, it may improve fluidity of the composition even in a high water reducing ratio range of the particle and effectively prevent slump loss of the cement formulation, while improving initial dispersibility due to excellent water reducing performance.

公开(公告)号：US20190127277A1

公开(公告)日：2019-05-02

申请号：US16095804

申请日：2017-12-08

申请人： LG Chem, Ltd.

发明人： Chang Bum Ko ,  Dong Jo Ryu ,  Im Gyu Kim ,  Hyo Min Kim

IPC分类号： C04B26/10 ,  C08F220/18 ,  C08F220/26 ,  C08L33/08 ,  C04B24/32

摘要： The present disclosure relates to a cement additive composition including a polycarboxylic acid-based copolymer. When the cement additive composition of the present disclosure is used for cement formulation, it may improve fluidity of the composition even in a high water reducing ratio range of the particle and effectively prevent slump loss of the cement formulation, while improving initial dispersibility due to excellent water reducing performance.

公开(公告)号：US10745500B2

公开(公告)日：2020-08-18

申请号：US15765005

申请日：2017-01-12

申请人： LG Chem, Ltd.

发明人： Jung Sup Han ,  Young Sam Kim ,  Chang Bum Ko ,  Dong Jo Ryu ,  Im Gyu Kim ,  Hyo Min Kim

IPC分类号： C08F120/06 ,  C08F20/06 ,  C08F2/48 ,  C08F2/38 ,  C08F220/06 ,  C08F2/44 ,  C08F2/00

摘要： The present disclosure relates to a preparation method for an acrylic acid-based polymer. According to the preparation method for an acrylic acid-based polymer of the present disclosure, unreacted monomers may be reduced and a high quality acrylic acid-based polymer can be prepared. In addition, it is not necessary to increase the time or the temperature in the polymerization step or the aging step, thereby maintaining the high productivity.

公开(公告)号：US20180298126A1

公开(公告)日：2018-10-18

申请号：US15765005

申请日：2017-01-12

申请人： LG Chem, Ltd.

发明人： Jung Sup Han ,  Young Sam Kim ,  Chang Bum Ko ,  Dong Jo Ryu ,  Im Gyu Kim ,  Hyo Min Kim

IPC分类号： C08F120/06 ,  C08F2/00 ,  C08F2/44

摘要： The present disclosure relates to a preparation method for an acrylic acid-based polymer. According to the preparation method for an acrylic acid-based polymer of the present disclosure, unreacted monomers may be reduced and a high quality acrylic acid-based polymer can be prepared. In addition, it is not necessary to increase the time or the temperature in the polymerization step or the aging step, thereby maintaining the high productivity.