Posco

Posco Co., Ltd

Noroo Holdings Co., Ltd.

Dpi Holdings Co., Ltd.,

Hye Jin Yoo

Jae Ryung Lee

Jin Tae Kim

Chang-Se Byeon

Jung-Su Kim

Chang Se Byeon

Jung Hwan Lee

Jong-Sang Kim

Yong-Gyun Jung

Jung Su Kim

Jae Dong Cho

In Woo Cheong

Jong Sang Kim

Gab Yong Kim

Yang Ho Choi

Kangmin Lee

Bong Woo Ha

Jehoon Baek

Wook Hyun Song

Jin Ho Jung

A composite material comprising a plastic layer; and a steel sheet laminated on one side or both sides of the plastic layer, and having a structure in which plastic particles are introduced onto the surface of the side where the plastic layer is laminated with the steel sheet and a method for producing the same are provided, wherein the composite material is capable of being used as automotive parts or structures, and the like.

Composite material in which steel sheet and plastic layer having functional group introduced therein are laminated, and method for producing same

According to the present invention, a noncovalent bond-modified carbon structure has advantages of: enabling the control of properties by controlling intervals between carbon structures according to the size and structure of a compound represented by Chemical Formula 1, which is inserted and adsorbed between the carbon structures; and enabling uniform dispersion in a polymer matrix without a change in intrinsic properties. In addition, a carbon structure/polymer composite comprising the modified carbon structure and a polymer matrix is simply manufactured and readily layered due to excellent orientation when forming a cured coating film, and thus can be useful for manufacturing a steel sheet having remarkable heat radiation, surface polarity, electrical properties and the like.

Noncovalent bond-modified carbon structure, and carbon structure/polymer composite comprising same

Provided is a resin composition for an under coat of an UV coating layer and a coated steel sheet using the resin composition. The coated steel sheet comprises a material steel sheet; an under coat layer including a cured product of a resin composition for the under coat layer which contains a main resin and a metal powder, the under coat layer being formed on one side or both sides of the material steel sheet; and a top coat layer formed on the under coat layer and containing a radical compound, thereby providing a superior appearance, scratch resistance, corrosion resistance and superior weldability.

Coated steel sheet having superior welding, scratch-resistance, and corrosion-resistance properties

Provided is a composition for forming a photocatalytic coating layer, a process for preparing said composition, a self-cleaning article comprising a photocatalytic coating layer comprising said composition and a process for preparing said self-cleaning article. The composition may be used to prepare a self-cleaning article having excellent anticorrosion and processability by one coating and drying procedure, without several coating and drying procedures.

Self-cleaning article and a process for preparing the same

A method of treating a surface of a substrate using modified urushiol derived fromis provided. More particularly, the reactivity of a hydroxyl group of urushiol extracted from freshis removed before the lacquer is used as a UV coating agent for a substrate such as a steel sheet. Therefore, the substrate may have high antibacterial activity, and excellent appearance and functionalities such as far-infrared radiation, blocking of electromagnetic waves, enhanced corrosion resistance, high crosslinking speed when a low content of a photoinitiator is used, excellent surface gloss and high scratch resistance.

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Growing community of inventors

Busan, South Korea

Hye Jin Yoo