Hanwha Chemical Corporation

Kyong Jun Yoon

Young Jo Kim

Ki Taeg Jung

Hyo Suk Kim

Hee Jin Jang

Kee Do Han

Yeo Jin Kim

Pil Je Seong

Kyoung Il Lee

Ki Jo Sim

Jang Young Kwak

Jae Song Kim

Hyeon Uk Kang

Yeon Su Jang

Provided are a method of preparing a dicyclopentadiene-based resin and a dicyclopentadiene-based resin. According to the present invention, provided is a dicyclopentadiene-based resin including an aromatic olefin-based comonomer as a comonomer to have improved quality including high compatibility, a favorable color characteristic, and a low softening point, and also having improved adhesive strength due to a low molecular weight and a narrow molecular weight distribution.

Method of preparing dicyclopentadiene-based resin and dicyclopentadiene-based resin

The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.

Method for regenerating hydrogenation catalyst for phthalate compound

The present invention relates to a stripping method capable of recovering, by an environmentally friendly method, a high-purity ester-based compound without concern over the oxidation of an ester-based compound from a mixture containing the ester-based compound. The stripping method has advantages of generating no wastewater, enabling equipment costs to be reduced by simplifying the process, removing concern over the oxidation of an ester-based compound during the process, and enabling the reuse of the components recovered in the process.

Stripping method

Growing community of inventors

Daejeon, South Korea

Kyong Jun Yoon