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1. 发明公开

EP4008711A1 ALDEHYDE PREPARATION METHOD AND ALDEHYDE PREPARATION APPARATUS 审中-实审
公开(公告)号：EP4008711A1
公开(公告)日：2022-06-08
申请号：EP21859348.1
申请日：2021-08-26
申请人： LG CHEM, LTD.
发明人： YANG, Jusang , SHIN, Sangjun , EOM, Sungshik , KIM, Tae Yun , KO, Dong Hyun , YANG, Sungpil
IPC分类号： C07C45/50 , C07C47/02 , B01J31/18 , B01J31/12
摘要： A method for preparing an aldehyde according to one embodiment of the present application comprises forming a reaction product comprising an aldehyde by reacting an olefin-based compound with a synthetic gas in a hydroformylation reactor under a catalyst for a hydroformylation reaction; introducing the reaction product comprising an aldehyde to a vaporizer; separating low-boiling point components of the reaction product to an upper part of a vaporizer catch pot comprised in the vaporizer, and separating high-boiling point components of the reaction product to a lower part of the vaporizer catch pot; and recirculating at least a portion of the low-boiling point components separated to an upper part of the vaporizer catch pot to the vaporizer catch pot.

2. 发明公开

EP4324868A1 PREPARATION METHOD OF SUPER ABSORBENT POLYMER, AND SUPER ABSORBENT POLYMER 审中-实审
公开(公告)号：EP4324868A1
公开(公告)日：2024-02-21
申请号：EP22825395.1
申请日：2022-06-20
申请人： LG Chem, Ltd.
发明人： HAN, Sangwon , KIM, Gicheul , PARK, Se Yeol , KIM, Tae Yun
IPC分类号： C08J3/24 , C08J3/12 , C08J3/075 , C08F220/06 , B29B9/12 , C08F2/01
摘要： This invention relates to a method for preparing super absorbent polymer and the super absorbent polymer. More specifically, this invention relates to a method for preparing a super absorbent polymer that can inhibit generation of fine particles during the preparation process, and simultaneously, realize excellent vortex time, by controlling the process conditions of a drying step to prepare base resin powder having relatively high moisture content, and the super absorbent polymer.

3. 发明公开

EP4169972A1 METHOD FOR PREPARING SUPER ABSORBENT POLYMER 审中-实审
公开(公告)号：EP4169972A1
公开(公告)日：2023-04-26
申请号：EP21903813.0
申请日：2021-12-07
申请人： Lg Chem, Ltd.
发明人： MIN, Yoon Jae , KIM, Gicheul , KIM, Tae Yun , LEE, Jungmin , CHOI, Jae Hoon
IPC分类号： C08J3/24 , C08J3/12 , C08J3/075 , C08K5/092 , C08K5/098
摘要： This invention relates to a method for preparing superabsorbent polymer. More specifically, this invention relates to a method for preparing superabsorbent polymer that realizes excellent drying efficiency, and thus, effectively inhibits warping of resin.

4. 发明公开

EP3715433A1 HOT-MELT ADHESIVE COMPOSITION 有权
公开(公告)号：EP3715433A1
公开(公告)日：2020-09-30
申请号：EP18896021.5
申请日：2018-12-11
申请人： LG CHEM, LTD.
发明人： PARK, Yong Su , KIM, Tae Yun , OH, Seungwhan , RYU, Jin Young
IPC分类号： C09J153/02 , C08L91/00 , C09J11/06 , C09J11/08 , C09J7/35
摘要： The present invention relates to a hot melt adhesive composition.
In the melt adhesive composition of the present invention, melt processing can be performed at a relatively low temperature as low viscosity properties are maintained, and thereby it has excellent adhesive strength and heat resistance while improving the processability. In particular, the melt adhesive composition has excellent mechanical properties after curing, and thus can be used in various industrial fields.

5. 发明公开

EP3546503A1 SUPERABSORBENT POLYMER PREPARATION METHOD 有权
公开(公告)号：EP3546503A1
公开(公告)日：2019-10-02
申请号：EP18871353.1
申请日：2018-10-15
申请人： LG Chem, Ltd.
发明人： KIM, Moo Kon , LEE, Sang Gi , NAM, Hye Mi , LEE, Chang Hun , KIM, Tae Yun
IPC分类号： C08J3/24 , C08F20/06 , C08F2/44
摘要： The present invention provides a method for preparing a super absorbent polymer which enables production of a super absorbent polymer capable of exhibiting an excellent absorption rate by including a uniform porous structure through a simple and economical process. The method for preparing a super absorbent polymer includes the steps of: performing a crosslinking polymerization of a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized in the presence of an internal crosslinking agent to form a hydrogel polymer containing a first crosslinked polymer; drying and pulverizing the hydrogel polymer; classifying the pulverized polymer into polymer particles having a particle size of at least 10 to 150µm, polymer particles having a particle size of 150 to 200 µm, and polymer particles having a particle size of 200 to 850 µm to form a base polymer powder having a particle size of 150 to 850 µm; and surface-crosslinking the base polymer powder, wherein in the crosslinking polymerization step, the foaming polymerization proceeds in the presence of polymer particles having an average particle size of 10 to 200 µm obtained in the classifying step and an anionic surfactant.

6. 发明公开

EP3357574A1 CATALYST COMPOSITION FOR HYDROFORMYLATION REACTION, AND HYDROFORMYLATION METHOD USING SAME 有权
公开(公告)号：EP3357574A1
公开(公告)日：2018-08-08
申请号：EP16831807.9
申请日：2016-08-26
申请人： LG Chem, Ltd.
发明人： KIM, Tae Yun , EOM, Sung Shik , JUNG, Da Won , KO, Dong Hyun , KIM, Mi Young , CHOI, Min Ji
IPC分类号： B01J31/18 , C07C45/50 , C07C47/02
CPC分类号： B01J31/18 , C07C45/50 , C07C47/02
摘要： The present invention relates to a catalyst composition for hydroformylation and a hydroformylation method using the same, and more particularly to a catalyst composition for hydroformylation including a phosphoramidite ligand and a transition metal catalyst, and a hydroformylation method using the catalyst composition.
In accordance with the present invention, provided are a catalyst composition for hydroformylation which increases productivity and provides superior catalytic activity and stability while lowering an n/i ratio in generated aldehyde upon hydroformylation of an olefinic compound, and a method of hydroformylating an olefinic compound using the catalyst composition.

7. 发明公开

EP3219698A1 APPARATUS AND METHOD FOR PREPARING GLYCOL 有权
标题翻译：用于制备乙二醇的装置和方法
公开(公告)号：EP3219698A1
公开(公告)日：2017-09-20
申请号：EP16844605.2
申请日：2016-08-25
申请人： LG Chem, Ltd.
发明人： EOM, Sung Shik , JUNG, Da Won , KIM, Tae Yun , CHOI, Jung Uk , KO, Dong Hyun , KIM, Mi Young , CHOI, Min Ji
IPC分类号： C07C29/80 , C07C29/82 , C07C29/14 , C07C31/20
CPC分类号： C07C29/141 , B01D3/10 , B01D3/141 , B01D3/143 , B01J8/02 , B01J19/245 , B01J2208/027 , B01J2219/24 , C07C29/80 , C07C29/84 , C07C45/75 , C07C45/80 , C07C45/82 , C07C31/20 , C07C47/19
摘要： The present disclosure relates to an apparatus for generating glycol and a method thereof. More particularly, the present disclosure relates to an apparatus for generating glycol including (a) an aldol reactor; (b) an extractor for extracting an aldol product, unsaturated aldehyde, using an organic solvent that is not mixed with water; (c) a distillation column for removing a raw material from a solution extract that is discharged from the extractor; (d) a hydrogenation reactor for hydrogenating a solution extract that is discharged from the distillation column; and (e) a divided-wall distillation column for isolating glycol from a hydrogenated solution product that is discharged from the hydrogenation reactor, wherein the hydrogenation reactor is a fixed-bed catalytic reactor that is filled with a copper-based catalyst, and a method of preparing the same.
In accordance with the present disclosure, an economical apparatus for preparing glycol which reduces loss of a raw material and provides a high glycol yield while inhibiting generation of by-products, and a method of preparing the same are provided.
摘要翻译：本公开涉及用于产生乙二醇的设备及其方法。更具体地说，本公开涉及用于产生二醇的装置，其包括（a）醇醛缩合反应器; （b）使用未与水混合的有机溶剂提取醛醇产物不饱和醛的提取器; （c）蒸馏塔，用于从提取器排出的溶液提取物中除去原料; （d）氢化反应器，用于氢化从蒸馏塔排出的溶液萃取物; 和（e）用于从加氢反应器排出的氢化溶液产物中分离乙二醇的分隔壁蒸馏塔，其中氢化反应器是填充有铜基催化剂的固定床催化反应器，和方法准备相同。根据本公开，提供了一种用于制备减少原料损失并提供高乙二醇收率同时抑制副产物生成的乙二醇的经济装置及其制备方法。

8. 发明公开

EP3943538A1 PREPARATION METHOD OF SUPER ABSORBENT POLYMER COMPOSITION 有权
公开(公告)号：EP3943538A1
公开(公告)日：2022-01-26
申请号：EP20902297.9
申请日：2020-12-18
申请人： LG CHEM, LTD.
发明人： KIM, Ki Hyun , KIM, Gicheul , CHOI, Jinuk , KIM, Tae Yun
IPC分类号： C08K5/11 , C08J3/12 , C08J3/24 , C08J3/20 , B29B9/12 , C08L101/14
摘要： The present disclosure relates to a preparation method of a super absorbent polymer composition. More specifically, it relates to a preparation method of a super absorbent polymer composition capable of pulverizing the hydrogel polymer to a normal particle size without agglomeration between particles by adding an additive having a specific structure, reducing manufacturing cost by simultaneously performing a drying process and a surface cross-linking process, and significantly reducing the amount of fine powder generated during the process.

9. 发明公开

EP3822305A1 PREPARATION METHOD OF SUPER ABSORBENT POLYMER 审中-实审
公开(公告)号：EP3822305A1
公开(公告)日：2021-05-19
申请号：EP20842662.7
申请日：2020-06-18
申请人： LG CHEM, LTD.
发明人： KIM, Tae Yun , PARK, Sung Soo , KIM, Gicheul
IPC分类号： C08J3/12
摘要： The present disclosure relates to a preparation method of a super absorbent polymer. In the preparation method of a super absorbent polymer, there may be provided a super absorbent polymer exhibiting excellent absorption properties and mechanical properties such as crushing strength while having uniform particle size distribution by effectively reassembling fines obtained inevitably in the preparation of a super absorbent polymer.

10. 发明授权

EP3187481B1 METHOD FOR PREPARING NEOPENTYL GLYCOL AT HIGH EFFICIENCY AND APPARATUS FOR PREPARING SAME 有权
公开(公告)号：EP3187481B1
公开(公告)日：2019-03-20
申请号：EP15820424.8
申请日：2015-09-15
申请人： LG Chem, Ltd.
发明人： EOM, Sung Shik , KO, Dong Hyun , KIM, Mi Young , JUNG, Da Won , KIM, Tae Yun , CHOI, Min Ji
IPC分类号： C07C29/141 , C07C29/94 , C07C31/20 , B01J21/08 , B01J23/78

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