Abstract:
본 발명은 마이크로전자패키지 기판의 제작에 있어서 솔더패드의 산화 방지를 위하여 코팅되는 유기솔더보존제(Organic Solderability Preservatives, OSP) 및 그 제조 방법에 관한 것으로서, 보다 상세하게는 4-비닐피리딘(4-vinylpyridine)과 메틸메타크릴레이트(methylmethacrylate)의 공중합체인 유기솔더보전재용 고분자 및 그 제조방법에 관한 것이다. 본 발명의 유기솔더보전제용 고분자는 솔더패드의 열적 손상을 방지하고 솔더패드에 대해 우수한 표면 특성 및 양호한 계면 특성을 구현할 수 있어, 본발명의 유기솔더보존제를 사용하면 대량생산에 의해 우수한 품질의 마이크로전자패키지 기판을 대량으로 생산하는 것이 가능하다.
Abstract:
PURPOSE: A cosmetic composition containing extract of Ecklonia stolonifera and Ecklonia cave extract is provided to prevent skin aging and to protect skin from UV ray. CONSTITUTION: A cosmetic composition contains Ecklonia stolonifera and Ecklonia cave extract containing phlorotannin. The cosmetic composition contains crude extract and hexane extract of Ecklonia stolonifera and Ecklonia cave. The cosmetic composition also contains phlorotannins(phlorofucofuroeckol). The cosmetic composition is manufactured in the form of a cream, liquid phase, aerosol, and emulsion.
Abstract:
본발명은미세기공을갖는프리스탠딩고분자필름을간단하고경제적인방법으로제조하는방법에관한것으로, 보다상세하게는 A) 기판상에수용성고분자의박막을형성하는단계; B) 상기수용성고분자박막상에소수성고분자박막을형성하는단계; C) 상기고분자박막이형성된기판을용매와 C1~C3인알콜의혼합용액으로처리하고건조시키는단계; 및 D) 상기건조된기판을물에침지하여수용성고분자박막을용해시키는것에의해상기소수성고분자박막을기판으로부터박리하는단계;를포함하는것을특징으로하는미세기공을갖는프리스탠딩고분자필름의제조방법에관한것이다.
Abstract:
PURPOSE: A manufacturing method of a carbon-metal nanocomposite using a plasma-solution system is provided to insert metal nanoparticles into the inside or outside of a carbon material, or to strongly adhere the metal nanoparticles on the surface of the carbon material by using plasma and ionic liquid. CONSTITUTION: A manufacturing method of a carbon-metal nanocomposite using a plasma-solution system comprises the following steps: a carbon material is thermally treated at 400-700 deg. C for 1-100 minutes; a mixture is obtained by mixing the thermally treated carbon material and a metal precursor with a solvent; the mixture is dispersed in a reduction solvent; and the reduction solvent in which the mixture is dispersed is processed with plasma. The carbon material is selected from the group consisting of mesoporous carbon(Com), activated carbon(Ca), carbon black(Cb), conductive carbon(Cc), carbon die(Cd), carbon fibers(Cf), carbon nanotubes(Cn), disused printer cartridges(Cp), and fullerene(C60). The reduction solvent is ionic liquid, poly alcohol, liquid paraffin, or a mixture thereof. The plasma processing is performed at a temperature of 0-250 deg. C and 30-500W of RF power of the plasma for 5-100 minutes.
Abstract:
PURPOSE: An oil-in-water emulsion composition for storing heat is provided to store heat and maintain inner temperature of transportation. CONSTITUTION: An oil-in-water emulsion type phase changing material having a melting point of 2-8deg.C comprises 25-27 parts by weight of oily phase components, 70-72 parts by weight of water phase components, and 1-3 parts by weight of surfactants out of 100.0 parts by weight of whole composition. The oily component is a hydrocarbon having 6-20 carbons and is especially called an n-tetrradecane. The surfactant is a non-ionic surfactant. The average particle size of oily component is 500-5000nm. The vaccine package includes the oil- in-water emulsion composition for storing heat.