摘要:
An organic composite coated steel sheet having excellent chromate dissolution resistance, wet adhesion, and corrosion resistance before and after working. The steel sheet comprises a chromate-silica film on at least one face of a zinc or zinc base alloy plated steel sheet, the silica-added chromate film having about 5 to 500 mg/m.sup.2 in terms of metal Cr content and being formed from a chromate solution containing about 25 to 70 wt % of Cr.sup.+6 based upon total Cr content. A resin coating film is adhered to the chromate-silica film and is formed from an aqueous paint. The aqueous paint includes an aqueous anionic resin and/or an aqueous nonionic resin, a reducing agent, and a water-dispersed silica. The resin coating film is deposited in a dry weight amount of about 0.1 to 3 g/m.sup.2.
摘要翻译:一种在工作前后具有优异的耐铬酸盐溶解性,湿粘合性和耐腐蚀性的有机复合涂层钢板。 所述钢板在锌或锌基合金镀覆钢板的至少一面上含有铬酸二氧化硅膜,所述二氧化硅添加的铬酸盐膜的金属Cr含量为约5〜500mg / m 2,由 铬酸盐溶液含有约25至70重量%的Cr + 6,基于总Cr含量。 将树脂涂膜粘附到铬酸盐 - 二氧化硅膜上,并由水性涂料形成。 水性涂料包括含水阴离子树脂和/或非水性非离子树脂,还原剂和水分散的二氧化硅。 树脂涂膜以约0.1〜3g / m 2的干重量进行沉积。
摘要:
It is an object of the present invention to provide an anticorrosive coating composition which uses a pollution-free (heavy metal-free) rust preventive pigment and exhibits anticorrosive performances equal or superior to those of lead compounds or chromic acid compounds even if the pigment is blended in various binder resins and also to provide an anticorrosive coating composition having excellent storage stability. The present invention relates to an anticorrosive coating composition comprising a binder resin and a pollution-free (heavy metal-free) rust preventive pigment containing a condensed calcium phosphate produced by baking a single substance or mixture of a calcium component and a phosphorous component in the following atomic ratio (Ca/P=m): 0.50
摘要翻译:本发明的目的是提供一种防污涂料组合物,其使用无污染(不含重金属)防锈颜料,并且即使颜料是颜料,也表现出与铅化合物或铬酸化合物相同或优于其的抗腐蚀性能 混合在各种粘合剂树脂中,并且还提供具有优异的储存稳定性的防腐涂料组合物。 本发明涉及一种防腐涂料组合物,其包含粘合剂树脂和无污染(无重金属)防锈颜料,其含有通过在其中焙烧单一物质或钙组分和磷组分的混合物而制备的浓缩磷酸钙 原子比(Ca / P = m):0.50
摘要:
A corrosion resistant coating composition comprising (i) 100 parts by weight of a bisphenol type epoxy resin comprising bisphenol skeletons and epichlorohydrin skeletons and having at least two epoxy groups per molecule, said bisphenol skeletons comprising bisphenol A skeletons and bisphenol F skeletons in a weight ratio of from 95:5 to 60:40, and (ii) from 5 to 400 parts by weight of silica particles.
摘要:
It is an object of the present invention to provide an anticorrosive coating composition which uses a pollution-free (heavy metal-free) rust preventive pigment and exhibits anticorrosive performances equal or superior to those of lead compounds or chromic acid compounds even if the pigment is blended in various binder resins and also to provide an anticorrosive coating composition having excellent storage stability. The present invention relates to an anticorrosive coating composition comprising a binder resin and a pollution-free (heavy metal-free) rust preventive pigment containing a condensed calcium phosphate produced by baking a single substance or mixture of a calcium component and a phosphorous component in the following atomic ratio (Ca/P=m): 0.50
摘要翻译:本发明的目的是提供一种防污涂料组合物,其使用无污染(不含重金属)防锈颜料,并且即使颜料是颜料,也表现出与铅化合物或铬酸化合物相同或优于其的抗腐蚀性能 混合在各种粘合剂树脂中,并且还提供具有优异的储存稳定性的防腐涂料组合物。 本发明涉及一种防腐涂料组合物,其包含粘合剂树脂和无污染(无重金属)防锈颜料,其含有通过在其中焙烧单一物质或钙组分和磷组分的混合物而制备的浓缩磷酸钙 原子比(Ca / P = m):0.50
摘要:
An inexpensive rotary grinding tool with reduced noise level of the grinding is provided. The rotary grinding tool comprises a metal disk having a grinding surface on at least a part of its surface and a holder for supporting the metal disk. The grinding surface has hard grains having a Mohs hardness in excess of 9 brazed thereon at a surface density of at least 20 grains/cm2. The holder has at its center a securing means for securing the holder on rotary shaft of a rotary drive unit. The holder and the metal disk are joined together to constitute the rotary grinding tool.
摘要翻译:提供了具有降低的磨削噪音水平的廉价的旋转磨削工具。 旋转研磨工具包括在其表面的至少一部分上具有研磨表面的金属盘和用于支撑金属盘的保持器。 磨削表面具有以至少20个/ cm 2的表面密度在其上钎焊的莫氏硬度超过9的硬质粒。 保持器在其中心具有用于将保持器固定在旋转驱动单元的旋转轴上的固定装置。 保持器和金属盘连接在一起以构成旋转研磨工具。
摘要:
Double-stranded RNA synthesized using native human DNA as template is found to be an excellent interferon inducer with low toxicity in spite of homologous native to host cell. It is produced by reacting ATP, GTP, CTP and UTP with one another in the presence of a native human DNA as template by the catalytic action of an active RNA polymerase to form RNA and subjecting the resulting RNA to annealing by heating it at a temperature of 70.degree. to 100.degree. C. and gradually cooling to room temperature or below to form double-stranded regions between their molecules.
摘要:
A method for manufacturing metal nanorods includes: a step of adding a reducing agent to a metallic salt solution; a step of radiating light into the metallic salt solution containing the reducing agent; and a step of leaving the light-radiated metallic salt solution containing the reducing agent stationary in a dark place so as to grow metal nanorods. Metal nanorods can be also grown by forming a mixed solution by fractionating the above light-radiated metallic salt solution and mixing the fractionated metallic salt solution into a non-radiated metallic salt solution containing the reducing agent, or mixing a non-radiated metallic salt solution and the reducing agent into the above light-radiated metallic salt solution; and leaving the mixed solution stationary in a dark place so as to grow metal nanorods.
摘要:
A method for manufacturing metal nanorods includes: a step of adding a reducing agent to a metallic salt solution; a step of radiating light into the metallic salt solution containing the reducing agent; and a step of leaving the light-radiated metallic salt solution containing the reducing agent stationary in a dark place so as to grow metal nanorods. Metal nanorods can be also grown by forming a mixed solution by fractionating the above light-radiated metallic salt solution and mixing the fractionated metallic salt solution into a non-radiated metallic salt solution containing the reducing agent, or mixing a non-radiated metallic salt solution and the reducing agent into the above light-radiated metallic salt solution; and leaving the mixed solution stationary in a dark place so as to grow metal nanorods.
摘要:
The present invention provides metal fine particles which have selective wavelength absorption characteristics in a wavelength region from visible light to near infrared light, and have sharp absorption characteristics, and influences little the surrounding wavelength, and therefore, they yield tones having high chroma. The present invention provides metal fine particles wherein an aspect ratio is in a range from 1.1 to 8.0, a maximum absorption wavelength in plasmon absorption is in a range from 400 nm to 1,200 nm, and an absorption coefficient at a peak position of the maximum absorption wavelength is in a range from 6,000 to 20,000 L/mol·cm (measurement concentration: 1.6×10−4 mol/L, and solvent:water).
摘要:
A method for manufacturing metal nanorods includes: a step of adding a reducing agent to a metallic salt solution; a step of radiating light into the metallic salt solution containing the reducing agent; and a step of leaving the light-radiated metallic salt solution containing the reducing agent stationary in a dark place so as to grow metal nanorods. Metal nanorods can be also grown by forming a mixed solution by fractionating the above light-radiated metallic salt solution and mixing the fractionated metallic salt solution into a non-radiated metallic salt solution containing the reducing agent, or mixing a non-radiated metallic salt solution and the reducing agent into the above light-radiated metallic salt solution; and leaving the mixed solution stationary in a dark place so as to grow metal nanorods.