摘要:
The invention relates to a process for producing diantimony pentoxide having a high oxidation purity.A process for producing an aqueous sol of diantimony pentoxide, which comprises mixing diantimony trioxide (Sb2O3) and an aqueous hydrogen peroxide solution in an aqueous medium, and after the temperature has reached from 50 to 80° C., reacting the diantimony trioxide with the aqueous hydrogen peroxide solution while keeping the reaction temperature at a level not higher by at least 10° C. than a desired set temperature in the temperature range, to thereby obtain a sol having dispersed in the aqueous medium diantimony pentoxide particles which have a primary particle size of from 2 to 50 nm and which have a diantimony trioxide/diantimony pentoxide weight ratio of not higher than 5 wt %.
摘要翻译:本发明涉及氧化纯度高的五氧化二锑生产方法。 一种生产五氧化二锑的水性溶胶的方法,其包括在水性介质中混合三氧化二锑(Sb 2 O 3)和过氧化氢水溶液,并且在温度达到50〜80℃后,使三氧化二锑与 过氧化氢水溶液,同时将反应温度保持在不高于所述温度范围内所需设定温度的至少10℃的水平,从而获得分散在水性介质中的溶胶,所述二氧化二锑颗粒具有初级颗粒 具有2至50nm的尺寸,并且其具有不高于5wt%的三氧化二锑/二氧化二锑重量比。
摘要:
The invention relates to a process for producing diantimony pentoxide having a high oxidation purity. A process for producing an aqueous sol of diantimony pentoxide, which comprises mixing diantimony trioxide (Sb2O3) and an aqueous hydrogen peroxide solution in an aqueous medium, and after the temperature has reached from 50 to 80° C., reacting the diantimony trioxide with the aqueous hydrogen peroxide solution while keeping the reaction temperature at a level not higher by at least 10° C. than a desired set temperature in the temperature range, to thereby obtain a sol having dispersed in the aqueous medium diantimony pentoxide particles which have a primary particle size of from 2 to 50 nm and which have a diantimony trioxide/diantimony pentoxide weight ratio of not higher than 5 wt %.
摘要翻译:本发明涉及氧化纯度高的五氧化二锑生产方法。 一种生产二氧化二锑的水性溶胶的方法,其包括将三氧化二锑(Sb 2 O 3 O 3)与过氧化氢水溶液在水性介质中混合,然后在 温度已经达到50℃至80℃,使二氧化锑与过氧化氢水溶液反应,同时将反应温度保持在不高于该温度范围内所需设定温度至少10℃的水平, 得到分散在一次粒径为2〜50nm的水性介质二氧化二锑颗粒中的溶胶,其二氧化二锑/二氧化二锑的重量比不高于5重量%。
摘要:
A sol comprising silica-magnesium fluoride hydrate composite colloidal particles used in an anti-reflection coating material for forming an anti-reflection coating and a process for its preparation are provided. A sol comprising silica-magnesium fluoride hydrate composite colloidal particles having a ratio of silica to magnesium fluoride hydrate MgF2.nH2O, n being in the range between 0.25 and 0.5, in terms of a SiO2/MgF2 weight ratio of from 0.01 to 5 and a primary particle size of 5 to 50 nm. A process for the preparation of an aqueous sol comprising silica-magnesium fluoride hydrate composite colloidal particles which comprises the steps of adding an aqueous fluoride solution to a mixture liquid of a silica sol and an aqueous magnesium salt solution to produce a slurry of an agglomerate comprising silica-magnesium fluoride hydrate composite colloidal particles and removing the salts formed as by-products. A process for the preparation of an organosol further comprising the step of replacing water in the aqueous sol with an organic solvent.
摘要:
The invention relates to coating compositions employing zinc antimonate anhydride comprising zinc antimonate anhydride particles and a liquid of a part-hydrolyzed silane coupling agent, a liquid of hydrolyzed ethylsilicate, a liquid of hydrolyzed methylsilicate, or a resin emulsion. The zinc antimonate anhydride particle having a ZnO/Sb.sub.2 O.sub.5 molar ratio in a range of from 0.8 to 1.2, a crystal structure of zinc antimonate anhydride (Zn Sb.sub.2 0.sub.5), and a primary particle size in a range of from 5 to 500 nm. The particle production method comprises the steps of mixing a zinc compound with a colloidal antimony oxide at a ZnO/Sb.sub.2 O.sub.5 molar rate in a range of from 0.8 to 1.2, followed by calcining the mixture within a temperature range of from 500 to 1100.degree. C. The particles are applicable as a flame retardant for plastics, a smoke suppressant, antistatic agent for plastics and glasses, and resistor.
摘要翻译:本发明涉及使用包含锑酸锌酸酐颗粒和部分水解的硅烷偶联剂的液体,水解的硅酸乙酯的液体,水解的甲基硅酸的液体或树脂乳液的锑酸锌酸酐的涂料组合物。 ZnO / Sb 2 O 5摩尔比为0.8〜1.2的锑酸锌酸酐粒子,锑酸锌酸酐(Zn Sb 2 O 5)的结晶结构,一次粒径为5〜500nm。 粒子的制造方法包括以0.5〜1.2的ZnO / Sb 2 O 5摩尔比混合锌化合物和胶态氧化锑,然后在500〜1100℃的温度范围内煅烧。 该颗粒可用作塑料阻燃剂,防烟剂,塑料和眼镜用抗静电剂和电阻剂。
摘要:
An electro-conductive oxide particle comprising indium atoms, antimony atoms and oxygen atoms in a molar ratio of In:Sb:O being 1:0.02-1.25:1.55-4.63 and having a primary particle diameter of from 5 to 500 nm.
摘要:
An electro-conductive oxide particle comprising indium atoms, antimony atoms and oxygen atoms in a molar ratio of In:Sb:O being 1:0.02-1.25:1.55-4.63 and having a primary particle diameter of from 5 to 500 nm.
摘要:
An aqueous sol of colloidal particles of tungstic oxide (WO.sub.3)-stannic oxide (SnO.sub.2) composite having a particle size of from 2 to 7 millimicrons is prepared by blending an aqueous solution of tungstic acid and an aqueous solution of an stannate in a weight ratio of from 0.5 to 100 as WO.sub.3 /SnO.sub.2. Where the WO.sub.3 -SnO.sub.2 composite sol in an amount of from 2 to 100 parts by weight as the total of WO.sub.3 and SnO.sub.2 is blended with a sol of a 3- to 5 valent metal oxide having a particle size of from 4 to 50 millimicrons in an amount of 100 parts by weight as the metal oxide, a modified metal oxide sol of colloidal particles having a size of 4.5 to 60 millimicrons as surface-coated with the tungstic oxide (WO.sub.3)-stannic oxide (SnO.sub.5) composite colloidal particles is prepared.
摘要:
The present invention relates to a method for producing titanium oxide (TiO2)-tin oxide (SnO2) composite sol, a titanium oxide (TiO2)-zirconium oxide (ZrO2)-tin oxide (SnO2) composite sol, and a titanium oxide (TiO2)-cerium oxide (CeO2)-tin oxide (SnO2) composite sol. Further, the present invention relates to a coating composition containing any of the above-mentioned composite sols for forming coating films that are excellent in marring resistance, surface hardness, wearing resistance, transparency, heat resistance, light-resistant, weatherability, or water resistance on optical elements such as lenses for glasses and cameras, automotive windowpane, or optical filters attached to liquid-crystal displays, plasma displays, etc. and to optical elements having a cured film of the coating composition on the surfaces.
摘要:
A melamine.melam.melem salt of a polyphosphoric acid, which has a solubility of from 0.01 to 0.10 g/100 ml in water (25.degree. C.), a pH of from 4.0 to 7.0 as a 10 wt % aqueous slurry (25.degree. C.), and a melamine content of from 0.05 to 1.00 mol, a melam content of from 0.30 to 0.60 mol and a melem content of from 0.05 to 0.80 mol, per mol of the phosphorous atom; andA process for producing the above mentioned melamine.melam.melem salt of a polyphosphoric acid, which comprises the following steps (a) and (b):(a) a step of obtaining a reaction product by mixing melamine and phosphoric acid at a temperature of from 0 to 330.degree. C. in such a ratio that the melamine is from 2.0 to 4.0 mols per mol of the phosphoric acid (as calculated as orthophosphoric acid content), and(b) a step of baking the reaction product obtained in step (a) at a temperature of from 340 to 450.degree. C. for from 0.1 to 30 hours.
摘要:
A melamine polymetaphosphate having a solubility of from 0.01 to 0.10 g/100 ml in water at 25.degree. C., a pH of from 2.5 to 4.5 in the form of a 10 wt % aqueous slurry at 25.degree. C. and a melamine content of from 1.0 to 1.1 mol per mol of phosphorus atom.A process for producing such a melamine polymetaphosphate, which comprises the following steps (a) and (b):(a) a step of mixing melamine, urea and an aqueous orthophosphoric acid solution containing at least 40 wt % of orthophosphoric acid, in such a ratio that melamine is from 1.0 to 1.5 mol per mol of orthophosphoric acid and urea is from 0.1 to 1.5 mol per mol of orthophosphoric acid, at a temperature of from 0 to 140.degree. C., to form a reaction mixture, and stirring the reaction mixture at a temperature of from 0 to 140.degree. C., while removing water, to obtain a powdery product of a double salt of orthophosphoric acid with melamine and urea; and(b) a step of calcining the powdery product obtained in step (a) at a temperature of from 240 to 340.degree. C. for from 0.1 to 30 hours, while preventing agglomeration, to obtain a melamine polymetaphosphate.