Lg Chem, Ltd

Other

Electronics and Telecommunications Research Institute

Korea Institute of Geoscience and Mineral Resources

Korea Institute of Oriental Medicine

Wonik Ips Co., Ltd.

Geo-view Co. Ltd.

Ho Young Lee

No Ma Kim

Min Sik Mun

Da Won Chai

Sun Keun Kim

Sang Mi Lee

Heung Yeal Choi

Yu Jin Kim

Youk Reol Na

Ki Seok Son

Jung Hwan Oh

Moon Youn Jung

Sang Jun Park

Young Jun Kim

Jae Hoon Choe

Ro Mi Lee

Kyoung Hwan Oh

Wan Joong Kim

Dae-Sik Lee

Kyung Chang Seo

Hyun Jun Kim

Jae Sun Choi

Hyeon Jong Park

Hyoung Woo Lee

Hye Jung Shin

Won Sik Kim

Su Min Na

Jae Moon Jun

Jong Myung Park

Ju Ah Lee

Hyun Do Kim

Myeong Soo Lee

Wook Sang Jang

The present invention relates to a modified conjugated diene-based polymer having excellent rolling resistance and improved processability, a method for preparing the same and a rubber composition including the same, and provides a modified conjugated diene-based polymer which includes a repeating unit derived from a conjugated diene-based monomer, and a functional group derived from a modifier, and satisfies conditions (i) to (vii), a method for preparing the same and a rubber composition including the same.

Modified conjugated diene-based polymer, method for preparing the same and rubber composition including the same

The present invention relates to a modified conjugated diene-based polymer having excellent processability and good tensile strength and viscoelasticity, and a rubber composition including the same, and provides a modified conjugated diene-based polymer including a first chain including a repeating unit derived from a conjugated diene-based monomer; a second chain including a repeating unit derived from a compound represented by Formula 1; and a derived unit from an alkoxysilane-based modifier, wherein the first chain and the second chain are coupled by the derived unit from the modifier.

The present invention provides a method for preparing a modified and conjugated diene-based polymer, which may prevent processability degradation by restraining the increase of mooney viscosity during post-treatment using steam with high temperature or storage for a long time by stabilizing a modified polymer using a modification stabilizer, and a modified and conjugated diene-based polymer prepared by the preparation method.

Method for preparing modified and conjugated diene-based polymer and modified and conjugated diene-based polymer prepared using the same

A modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer having a unimodal molecular weight distribution curve measured by gel permeation chromatography (GPC), molecular weight distribution (PDI; MWD) of less than 1.7, and a Si content of 100 ppm or more based on weight, and including a repeating unit derived from an aromatic vinyl monomer in an amount from 15 wt % to less than 30 wt %, and a rubber composition including the same.

Modified conjugated diene-based polymer and rubber composition including the same

The present disclosure relates to a modifier, and more particularly, to a modifier including a compound represented by Formula 1, and a method of preparing the same. Such modifier exhibits excellent dispersibility via hydrogen bonding with an inorganic filler when mixed therewith. The present disclosure also relates to a modified conjugated diene-based polymer and a method of preparing the modified conjugated diene-based polymer by using the modifier. The resulted modified conjugated diene-based polymer exhibits excellent processability, high tensile strength, high wear resistance, low rolling resistance, and high wet skid resistance.

Modifier, method of preparing the same, and modified conjugated diene-based polymer including the same

A modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer having a unimodal molecular weight distribution curve measured by gel permeation chromatography (GPC), molecular weight distribution (PDI; MWD) of less than 1.7, and a Si content of 100 ppm or more based on weight, and a rubber composition including the same.

A modified conjugated diene-based polymer and a rubber composition including a modified conjugated diene-based polymer are disclosed herein. In some embodiments, a modified conjugated diene-based polymer includes a functional group derived from a modification initiator at one terminal and a functional group derived from a modifier represented by the Formula 2 or Formula 3 at the other terminal, wherein the modified conjugated diene-based polymer having a unimodal molecular weight distribution, and a polydispersity index of 1.0 to less than 1.7. The modified conjugated diene-based polymer prepared by continuous polymerization and having remarkable processability, narrow molecular weight distribution and excellent physical properties.

The present invention relates to a modifier useful for the modification of a conjugated diene-based polymer, having excellent affinity with a filler, and capable of improving the compounding properties of a conjugated diene-based polymer, a method for preparing the same, a modified conjugated diene-based polymer including the modifier, and a method for preparing the polymer.

Modifier, method for preparing the same, and modified conjugated diene-based polymer including the same

The present invention provides a modifier including a silane-based compound of Formula 1, which may prevent the agglomeration of a filler in a rubber composition and increase the dispersibility of a filler, thereby improving the processability of a rubber composition, by easily introducing a functional group having affinity with a filler into a conjugated diene-based polymer chain, and a modified and conjugated diene-based polymer prepared using the same.

Modifier and modified and conjugated diene-based polymer prepared using the same

The present invention relates to a modified conjugated diene-based polymer, and more particularly, provides a modified conjugated diene-based polymer which includes a repeating unit derived from a conjugated diene-based monomer and includes at one terminal, a functional group derived from a modifier which includes a compound represented by Formula 1, and a method for preparing the same.

Modified conjugated diene-based polymer and method for preparing the same

Provided is a substrate processing apparatus and substrate processing method for depositing a thin film on a substrate. The substrate processing apparatus may include a chamber, a susceptor rotatably mounted in the chamber, at least one satellite mounted on the susceptor, configured to place a substrate thereon, and capable of being floated and rotating due to pressure of a gas supplied through the susceptor, to rotate the substrate, and of revolving due to rotation of the susceptor, and a cart lifting module including a cart mounted on the susceptor around the satellite and supporting an edge of the substrate to take over the substrate and place the substrate on the satellite, and a cart lifting device capable of lifting and lowering the cart.

Substrate processing apparatus and substrate processing method

The present disclosure relates to a modifier, and more particularly, to a modifier including a compound represented by Formula 1, and a method of preparing the same. Such modifier exhibits excellent dispersibility via hydrogen bonding with an inorganic filler when mixed therewith. The present disclosure also relates to a modified conjugated diene-based polymer modified using the modifier and thus exhibiting excellent processability, high tensile strength, high wear resistance, low rolling resistance, and high wet skid resistance, and a method of preparing the modified conjugated diene-based polymer.

The present invention provides an azasilane-based modifier of Formula 1, which may easily introduce a functional group having affinity with a filler into a conjugated diene-based polymer chain, a modified and conjugated diene-based polymer including the functional group derived from the azasilane-based modifier, a method for preparing the modified and conjugated diene-based polymer, a rubber composition including the modified and conjugated diene-based polymer, and a molded article and a tire manufactured from the rubber composition.

Azasilane-based modifier, and method for preparing modified and conjugated diene-based polymer using the same

The present invention relates to a polymerization initiator represented by Formula 1, a modified conjugated diene-based polymer, methods for preparing them, a rubber composition comprising the modified conjugated diene-based polymer, and a tire prepared from the rubber composition.  (In Formula 1, the definition of each substituent is the same as defined in the description.)

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Daejeon, South Korea

Ho Young Lee