Lg Chem, Ltd

Gyeong Shin Choi

Won Hee Kim

Dong Hyun Jo

Seung Young Park

Hee Jeong Kim

Hyun Taek Oh

Wan Kyu Oh

Jin Kyu Lee

Jeong Sik Kim

Jin Soo Lee

Jin Woo Lee

Ji Hyun Choi

Jong Yeol Baek

Jeong Seok Lee

Jin Hong Lee

Seong Beom Heo

Woo Sung Hwang

Hye Mi Kim

Moon Gon Jeong

Young Soo Ko

Ha Young Jung

Ann Chaise Carino

The present invention relates to a method for preparing a liquid rubber, and relates to a method for preparing a liquid rubber, including performing polymerization reaction of a conjugated diene-based monomer in the presence of an organic solvent and a catalyst composition (S10), wherein the catalyst composition includes a catalyst including a compound represented by the following Formula 1, and a liquid rubber prepared therefrom:

Method for preparing liquid rubber and liquid rubber prepared therefrom

The present invention relates to a method for halogenating an isobutene-isoprene copolymer by using an organic hypochlorite. By using the method of the present invention, a hydrogen halide byproduct may be rapidly recycled into a halogenating agent and reused. As a result, a halogenated isobutene-isoprene copolymer having the high content of secondary allyl halogen functional groups may be prepared by increasing the participation ratio of the halogenating agent in reaction and suppressing the rearrangement of the secondary allyl halogen functional groups. The halogenated isobutene-isoprene copolymer prepared according to the present invention may be effectively used in the crosslinking reaction with other rubber, and is industrially useful.

Method for halogenating isobutene-isoprene copolymer

The present invention relates to a catalyst composition including an oxonium ion-based catalyst represented by the following Formula 1, and an additive, and a method for preparing polyisobutene using the same:

Catalyst composition and method for preparing polyisobutene using the same

The present invention relates to a catalyst composition including an imidazolinium ion-based catalyst and an aluminum-based cocatalyst, and a method for preparing an isobutene-isoprene copolymer using the same.

Catalyst composition and method for preparing isobutene-isoprene copolymer using the same

The present invention relates to an organic borate-based catalyst including a compound represented by the following Formula 1 and a hydroxyl group-containing compound, a method for preparing an isobutene oligomer using the same and an isobutene oligomer prepared thereby: wherein R, Rto R, o, p, q and r are described therein.

Organic borate-based catalyst, method for preparing isobutene oligomer using the same and isobutene oligomer prepared thereby

A method for separating polybutene, the method including: (1) introducing a polybutene solution into a distillation column, the solution including polybutene, a halogenated hydrocarbon solvent, and a non-polar hydrocarbon solvent and having a viscosity of 1 cp to 50 cp measured at 25° C. using a rotational viscometer; (2) collecting an upper stream including the halogenated hydrocarbon solvent and a portion of the non-polar hydrocarbon solvent from an upper portion of the distillation column, and collecting a lower stream including the polybutene and a remaining portion of the non-polar hydrocarbon solvent from a lower portion of the distillation column, where the lower stream has a viscosity of 10 cp to 150 cp; and (3) separating the remaining portion of the non-polar hydrocarbon solvent and the polybutene from the lower stream.

Method for separating polybutene

A catalyst composition and a method for preparing a hydrocarbon resin using the same are disclosed herein. In some embodiments, a catalyst composition includes an oxonium ion-based catalyst and an additive. In some embodiments, a method includes polymerizing a monomer mixture in the presence of a catalyst composition, wherein the monomer mixture comprises a C5 unsaturated hydrocarbon monomer, a C9 unsaturated hydrocarbon monomer, or a mixture thereof, wherein the catalyst composition comprising a catalyst represented by the following Formula 1 and an additive represented by the following Formula 2.

Catalyst composition and method for preparing hydrocarbon resin using the same

The present invention provides a method for preparing a polybutene oligomer including a step of oligomerizing a polymerization solution including a halogenated hydrocarbon solvent, a nonpolar hydrocarbon solvent and an isobutene monomer in the presence of an organometal catalyst.

Method for preparing polybutene oligomer

The present invention relates to a catalyst composition including an oxonium ion-based catalyst and an aluminum-based cocatalyst, and a method for preparing an isobutene-based polymer using the same.

Catalyst composition and method for preparing isobutene-based oligomer using the same

The present invention provides an organometal catalyst having a cationic metal complex and a borate-based bulky anion, where the metal is one or more selected from the group consisting of metals in group 13, a method for preparing the same, and a method for preparing an oligomer or a polymer using the same.

Cationic metal complex, organometal catalyst having borate-based bulky anion, method for preparing the same, and method for preparing oligomer or polymer using the same

The present invention provides a method for preparing a transition metal complex, including a step of preparing a dispersion including a transition metal salt or alkoxide, and a coordinating solvent; and a step of reacting an organic borate-based compound containing a carbon-based, silyl-based or amine-based cation and a borate-based bulky anion, with the dispersion, wherein the transition metal is one or more selected from the metals in group 7 to group 12.

Method for preparing transition metal complex

The present invention provides a method for preparing a butene oligomer including a step of oligomerizing a polymerization solution including a halogenated hydrocarbon solvent, a nonpolar hydrocarbon solvent and an isobutene monomer in the presence of an organometal catalyst.

Method for preparing butene oligomer

The present disclosure relates to an acrylic adhesive composition exhibiting excellent lap shear strength and adhesive strength by including an adhesion enhancer of a specific component.

Two part adhesive composition

The present invention provides an organometal catalyst having a cationic transition metal complex and a borate-based bulky anion, a method for preparing the same, and a method for preparing an oligomer using the same.

Organometal catalyst having cationic transition metal complex and borate-based bulky anion, method for preparing the same, and method for preparing oligomer using the same

A two-component adhesive composition includes: (i) a first part of a (meth)acrylate-based monomer mixture including components (a1) to (a3) below: (a1) an alkyl (meth)acrylate compound, and any one or more of a (meth)acrylate compound having an alkoxysilyl group, and a (meth)acrylate compound having an unsaturated functional group except for an acryloyl group, (a2) 50 to 100 parts by weight of an adhesive reinforcing agent relative to the 100 parts by weight of the (meth)acrylate-based monomer mixture, and (a3) 1 to 10 parts by weight of a filler relative to the 100 parts by weight of the (meth)acrylate-based monomer mixture; and (ii) a second part including components (b1) and (b2) below with a weight ratio of 1:1 to 20:1, where (b1) 100 parts by weight of an epoxy resin, and (b2) 50 to 150 parts by weight of an initiator with respect to (b1).

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Daejeon, South Korea

Gyeong Shin Choi