Posco

Noroo Holdings Co., Ltd.

Samhwa Paints Industries Co., Ltd.

Dpi Holdings Co., Ltd.,

Jae Ryung Lee

Jin Tae Kim

Hye Jin Yoo

Moon Jae Kwon

Jae Dong Cho

Chang Se Byeon

Jung Su Kim

Young Woo Lee

Sang Eun Shim

Jae Soon Lee

Gab Yong Kim

Jung Hwan Lee

Sang Min Lee

In Woo Cheong

Young Geun Kim

Yong Woon Kim

Yang Ho Choi

Si Youl Choun

Ha Sun Park

Hee Gwan Lee

Sang Geol No

Du Hwan Jo

Sang Gon Kim

Chang Se Byun

Han Seob Song

Wook Hyun Song

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

Provided is a resin composition for surface treatment of a steel sheet including a binder resin, graphene and a solvent. More particularly, as only a small amount of the graphene is included in the resin composition used for surface treatment of a steel sheet, a user-required electrical conductivity can be provided to the steel sheet.

Resin composition for surface treatment of steel sheet and surface-treated steel sheet using the same

A radiation-curable base resin composition and a fingerprint-resistant resin composition including the same are provided. The radiation-curable base resin composition includes a multifunctional urethane(meth)acrylate having three or more functional groups at 3 to 35 parts by weight, a bifunctional urethane(meth)acrylate at 3 to 35 parts by weight, at least one (meth)acrylic acid ester monomer selected from a monofunctional (meth)acrylic acid ester monomer and a multifunctional (meth)acrylic acid ester monomer at 20 to 60 parts by weight and a radiation polymerization initiator at 0.1 to 15 parts by weight.

Radiation curable resin composition, and fingerprint-resistant resin composition containing 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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An ultraviolet (UV) curable resin composition is provided which includes 25 to 45 parts by weight of a modified epoxy acrylate oligomer; and 10 to 25 parts by weight of a urethane acrylate oligomer. Further provided is a metal sheet that is transparent and corrosion resistant, impact resistant, scratch resistant, adhesive, anti-corrosive, and bendable (workable) by forming a coating film on the surface of a metal material such as a steel material, specifically a steel sheet, using the UV curable resin composition mentioned above.

Ultraviolet curable resin composition for transparent color-painted steel sheet, and steel sheet using same

A heat-dissipating black resin composition having excellent physical properties such as heat-dissipation, workability, corrosion resistance, solvent resistance, coating adherence and gloss, and being free from chromium and used for surface treatment of a zinc coated steel sheet and a zinc coated steel sheet treated thereby. The composition includes, based on 100 parts by weight: 10 to 60 parts by weight of a resin composition which at least one main resin and a melamine-based curing agent are mixed in a weight ratio of 10:2-7, the main resin being selected from the group consisting of polyester, epoxy, polyolefin, polyurethane, fluorine, phenol, acryl and polycarbonate resins; 1 to 10 parts by weight of at least one pigment selected from the group consisting of carbon black and carbon nano tube; 1 to 10 parts by weight of a matting agent; and a solvent.

Excellent heat-dissipating black resin composition, method for treating a zinc coated steel sheet using the same and steel sheet treated thereby

A coating composition for zinc- and zinc alloy-coated steel sheets includes: 1 to 30% by weight of hypophosphorous acid, 0.1 to 10% by weight of manganese, 0.01 to 5% by weight of a polyvinyl compound, zinc oxide and the balance of water, and further comprises 20% by weight or less of alcohol, when necessary, wherein the zinc oxide is included in such a content that, when 50 Ml (milliliters) of the coating composition is neutralized and titrated with 0.1N NaOH, the NaOH used for the neutralization titration is present in an amount of 10.0 Ml (milliliters) or less, and a content of free acid in the coating composition is adjusted to such an amount that, when 50 Ml (milliliters) of the coating composition is neutralized and titrated with 0.1N NaOH, the NaOH used for the neutralization titration is present in an amount of 10.0 Ml (milliliters) or less. The coating film formed on the steel sheet using the coating composition shows excellent properties such as lubricating property, adhesion and coating removal property, and also has a fine surface appearance.

Coating composition for steel sheets having zinc and zinc alloy coating layer, method for forming coating layer using the coating composition and steel sheet having the coating layer formed thereof

Growing community of inventors

Goyang-si, South Korea

Jae Ryung Lee