Lg Chem, Ltd

Other

Hyeon Hui Kim

Jae Hoon Choe

Jung Yong Lee

Jong Young Choi

Dong Cheol Choe

Won Jae Lee

Hyun Ju Kim

Jong Min Shin

Kwang Ho Song

Woong Chan Jeong

Min Seo Cho

Chan Joong Kim

Myung Han Lee

Ki Jae Lee

Mooho Hong

Hye Jin Han

Hyunju Kim

Soyeon Jee

A method for preparing granular polycarbonate particles is disclosed herein. In some embodiments, a method for preparing granulated polycarbonate particles includes mixing a polymerization reaction solution comprising polycarbonate and an organic solvent, and an anti-solvent solution comprising water and an anti-solvent to prepare a mixed solution, heating the mixed solution to remove the organic solvent, and drying or filtering the mixed solution to obtain granular polycarbonate particles. The granular polycarbonate particles having excellent physical properties without using a stabilizer or a surfactant can be obtain.

Method for preparing granular polycarbonate

The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time. In addition, the preparation method according to the present invention may prepare the modification polymerization initiator with high purity in high yield.

Modification polymerization initiator and method for preparing the same

A vehicle transfer robot () of the present invention, disposed vertically on the ground, is formed to have four vertical frames () disposed at a predetermined distance apart from each other and formed to have a quadrangular frame, and a quadrangle by connecting the upper end parts of the four vertical frames (), respectively, wherein the vehicle transfer robot () includes: a frame part () including an upper frame (); a driving part () installed at each of the lower end parts of the vertical frames () for moving the frame part (); and a carriage () installed in the frame part () for loading a vehicle.

Intelligent vehicle transfer robot for executing parking and unparking by loading vehicle

The present invention relates to a method for preparing a modification polymerization initiator with a high conversion ratio by minimizing side reactions. According to the method for preparing a modification polymerization initiator, a modification polymerization initiator which may easily initiate polymerization and provide a polymer with a functional group having affinity with a filler, may be prepared. Particularly, by performing the method using a continuous reactor, the production of by-products may be decreased, and as a result, the conversion ratio may be increased and a modification polymerization initiator with high purity may be prepared in a high yield.

Method for preparing modification polymerization initiator using continuous type reactor

The present invention relates to a modified polymerization initiator for a conjugated diene-based polymer, and a modified conjugated diene-based polymer including a functional group derived from the modified polymerization initiator.

Modified polymerization initiator and modified conjugated diene- based polymer including functional group derived therefrom

The present invention can provide an intelligent vehicle transport robot for a single-level parking lot, wherein: parking lines for indicating parking locations of respective vehicles are marked on a parking lot formed at a single level; the parking lines are marked in a checkerboard pattern so as to exclude drive aisles for vehicle movements and thus increase the number of vehicles that can be accommodated in parking spaces; and a vehicle transport robot () is provided in the parking lot, which performs vehicle parking and retrieval by moving a vehicle above parked vehicles, whereby due to exclusion of drive aisles, the number of vehicles that can be accommodated in parking spaces is increased as compared to a conventional parking lot having the same area, and thus the parking efficiency of the parking lot can be improved.

Intelligent vehicle transport robot for single-level parking lot having no drive aisles

The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time.

A polymerization initiator composition includes isomers of the polymerization initiator, thereby preventing instability and inertness of the polymerization initiator and physical property degradation of the SSBR, minimizing by-products and unreacted materials, and remarkably improving a conversion ratio. In addition, when the polymerization initiator composition according to the present invention is used, there is no need to add a polar additive separately upon polymer polymerization, since the polar additive is already added at the time of preparing the polymerization initiator. Further, the polymer initiator composition has high polarity so that the hydrophobic SSBR and the hydrophilic silica can be effectively dispersed.

Polymerization initiator composition, preparation method therefor, and method for preparing polymer using same

An method for preparing an anion polymerization initiator, a device for preparing the same and an anion polymerization initiator prepared therefrom are provided. And the method for preparing an anion polymerization initiator according to present invention is characterized in that an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.

Preparation method of anionic polymerization initiator, device for manufacturing anionic polymerization initiator and anionic polymerization initiator prepared therefrom

A method for preparing an anionic polymerization initiator, a device for manufacturing the same, and an anionic polymerization initiator prepared therefrom is provided. And the method for preparing an anionic polymerization initiator according to the present invention is characterized in that in a continuous reactor an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.

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Daejeon, South Korea

Hyeon Hui Kim