Hanwha Chemical Corporation

Hdc Hyundai Engineering Plastics Co., Ltd.

Jung Ho Kong

Jin Seo Lee

Seung Hoe Do

Seong Yun Jeon

Sang Hyun Cho

Kyu Hwan Park

Jeong Hyun Choi

Gyu Nam Kim

Jeong Hwan Ko

Chun Sik Jung

Han Shin Lee

Sin-Won Kang

Ji Eun Namgoong

Dong Hak Kim

Gi Woo Han

Seung Hyung Lee

Ki Sik Kim

Disclosed herein is a polyvinyl chloride resin, including: a first particle group having a particle diameter of 0.01 &#x3bc;m or more and less than 1 &#x3bc;m; and a second particle group having a particle diameter of 1 to 10 &#x3bc;m, wherein the volume ratio of the first particle group to the second particle group is 1:0.4 to 1:1.

Polyvinyl chloride resin and method of preparing the same

There are provided a graphene having an oxygen atom content in a predetermined range or less and a carbon/oxygen weight ratio in a specific range to show excellent electrical and thermal conductivity properties, and a barrier property, and a method and an apparatus for preparing the graphene having excellent electrical and thermal conductivity properties and a barrier property by using a subcritical-state fluid or a supercritical-state fluid. According to the method and the apparatus for preparing the graphene, impurities such as graphene oxide, and the like, may be effectively removed, such that uniformity of the graphene to be prepared may be increased, and therefore, the graphene which is highly applicable as materials throughout the industry may be mass-produced.

Graphene, method and apparatus for preparing graphene

There are a method and an apparatus for modifying a graphene, and more specifically, a method and an apparatus for modifying a graphene capable of obtaining the graphene having a desired crystallite size by repeating a process for modifying the graphene using subcritical or supercritical carbon dioxide several times. According to the method and the apparatus for modifying the graphene of the present invention, the graphene having excellent electrical conductivity and dispersibility may be obtained.

Method and apparatus for modifying graphene

The present invention relates to a resin for a blister package and a preparation method thereof. The resin for a blister package according to the present invention is a water-soluble resin which can minimize a hazard to a human body due to residual of a solvent, and particularly, a resin layer formed by using the resin can show an excellent heat seal property and is hardly deformed at the heat seal temperature condition.

Resin for blister package and preparation method thereof

Growing community of inventors

Daejeon, South Korea

Jung Ho Kong