公开(公告)号：US20230119016A1

公开(公告)日：2023-04-20

申请号：US17796055

申请日：2021-08-17

申请人： LG Chem, Ltd.

发明人： Junwye Lee ,  Chang Hun Han ,  Tae Young Won ,  Jungmin Sohn ,  Hyemin Lee ,  Jihye Ryu ,  Minsu Kim

IPC分类号： C08J3/075 ,  C08J3/24 ,  C08J3/12

摘要： Provided is a method of preparing a superabsorbent polymer, which enables preparation of the superabsorbent polymer exhibiting an improved absorption rate while maintaining excellent absorption performances by minimizing a surface damage phenomenon of the superabsorbent polymer in a pneumatic conveying process during the preparation process of the superabsorbent polymer or in a pneumatic conveying process of the finally prepared superabsorbent polymer.

公开(公告)号：US20210179790A1

公开(公告)日：2021-06-17

申请号：US16962947

申请日：2018-12-06

申请人： LG Chem, Ltd.

发明人： Junwye Lee ,  Chang Hun Lee ,  Kwangin Shin ,  Chang Hun Han ,  Sang Gi Lee

IPC分类号： C08J3/24 ,  C08J3/075 ,  C08F20/06

摘要： The present disclosure relates to a super absorbent polymer having a high water content and a method for preparing the same. The super absorbent polymer according to the present disclosure has a relatively high water content compared to a conventional one but has no degradation in absorption-related physical properties, and thereby can be used in various fields.

公开(公告)号：US20200088710A1

公开(公告)日：2020-03-19

申请号：US16466890

申请日：2018-08-24

申请人： LG Chem, Ltd.

发明人： Yeon Soo Kim ,  Hye Mi Nam ,  Hyunsup Lee ,  Sang Gi Lee ,  Chang Hun Han ,  Myung Han Lee ,  Hyejin Han

IPC分类号： G01N33/32 ,  A61F13/53 ,  G01N15/08

摘要： A SAP evaluation apparatus includes: a main body installed with a lifting bar that is raised or lowered; a container portion installed under the lifting bar in the main body and having an internal containing space for containing an absorber; an operating portion connected to the lifting bar and having a lifting plate that is raised or lowered within the containing space and applies pressure to the absorber and an injection portion for injecting an ink in the direction of the absorber; a dispersion measurement portion for measuring the dispersion of the ink through the absorber; and a controller installed at the main body to measure absorption of the ink into the absorber and measure swelling capacity of the absorber while the ink is injected into the absorber.

公开(公告)号：US09458313B2

公开(公告)日：2016-10-04

申请号：US14764555

申请日：2014-02-27

申请人： LG CHEM, LTD.

发明人： Jae Bum Seo ,  Chang Hun Han ,  Dae Woo Lee ,  Jung Tae Park ,  Eun Jung Choi ,  Byoung Il Kang ,  Da Eun Sung ,  Gyu Sun Kim

IPC分类号： C08F290/04 ,  C08K5/00 ,  C08G63/48 ,  C08L25/02 ,  C08F20/44 ,  C08F112/02 ,  C08L25/12 ,  C08F2/02 ,  C08F212/10 ,  C08L25/16 ,  C08L55/02

CPC分类号： C08L25/12 ,  C08F2/02 ,  C08F212/10 ,  C08L25/16 ,  C08L55/02 ,  C08F4/36 ,  C08F212/12 ,  C08F220/44 ,  C08F212/08

摘要： Disclosed are a heat-resistant SAN resin, a method of preparing the same, and a heat-resistant ABS resin composition comprising the same. More particularly, a heat-resistant SAN resin comprising 60 to 75 wt % of α-methylstyrene, 25 to 35 wt % of a vinyl cyan compound, and 0 to 10 wt % of an aromatic vinyl compound (except for α-methylstyrene), the heat-resistant SAN resin having a degree of branching of 0.40 to 0.60, a molecular weight of 90,000 to 150,000 g/mol, and a glass transition temperature (Tg) of 124 to 140° C., a method of preparing the same, and a heat-resistant ABS resin composition comprising the same are disclosed.

摘要翻译： 公开了耐热性SAN树脂及其制备方法，以及含有该树脂的耐热性ABS树脂组合物。 更具体地说，包含60至75重量％的α-甲基苯乙烯，25至35重量％的乙烯基青色化合物和0至10重量％的芳族乙烯基化合物（α-甲基苯乙烯除外）的耐热SAN树脂， 其支化度为0.40〜0.60，分子量为90,000〜150,000g / mol，玻璃化转变温度（Tg）为124〜140℃的耐热SAN树脂，其制备方法， 并公开了包含该ABS树脂组合物的耐热ABS树脂组合物。