摘要:
The invention relates to an IR radiation-reflecting pigment comprising a platelet-shaped, metallic, IR-reflecting core, the IR radiation-reflecting core being provided with a substantially enveloping coating whose absorption for IR radiation is substantially low, and the IR-reflecting pigment being substantially dark. The invention further relates to a method of producing these pigments and also to the use thereof.
摘要:
A process for producing a dispersion containing metal oxide nanoparticles in a liquid phase, wherein the process comprises the following steps: (a) atomization of a metal melt to give a metallic powder, (b) optionally deformation of the metallic powder obtained in step (a), (c) oxidation of the metallic powder obtained in step (a) or (b) to give a metal oxide powder, (d) comminution of the metal oxide powder obtained in step (c) in the presence of a liquid phase to give a dispersion whose metal oxide particles have a particle size d90,oxide of less than 300 nm. The invention further relates to a dispersion which can be obtained by the process of the invention.
摘要:
A printing ink, preferably ink-jet ink, containing pearlescent pigments and at least one of at least one solvent, at least one radiation-curable component and at least one binder, wherein the pearlescent pigments comprise a substantially transparent platelet-shaped substrate having a density ρS and at least one optically active coating having a density ρM, and the pearlescent pigments have a d90 value for a cumulative frequency distribution of a volume-averaged size distribution function with a range from 3.5 to 15 μm. The invention further relates to a process for producing the printing ink.
摘要:
A silver-colored pigment is provided having a nonmetallic platelet-shaped substrate and at least one ilmenite-containing coating, wherein the nonmetallic platelet-shaped substrate is a nonmetallic platelet-shaped synthetic substrate and the amount of iron compounds, calculated as elemental iron, in the pigment is less than 5.0 % by weight, based on the total weight of the pigment. Processes for preparing the pigment also are provided.
摘要:
The present invention relates to a weather-resistant pearlescent pigment which consists of a platelet-shaped substrate coated with one or more highly refractive metal oxides, the platelet-shaped substrate being selected from the group consisting of synthetic mica flakes, glass flakes, SiO2 flakes, Al2O3 flakes, synthetic boehmite flakes, BiOCl flakes and mixtures thereof, and a top layer, wherein the top layer consists of the following layers: a) a cerium-containing layer, selected from the group consisting of cerium oxide, cerium hydroxide, hydrated cerium oxide, and mixtures thereof, the cerium-containing layer being applied directly to the highly refractive metal oxide layer, and b) an organic-chemical compatibilizing layer, which comprises the reaction products of oligomeric silanes, wherein the oligomeric silanes have one or more amino groups, the organic-chemical compatibilizing layer being applied directly to the cerium-containing layer a).
摘要:
Multilayer pearlescent pigments based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least a) a nonabsorbing high-index layer A having a refractive index n≧1.8, b) a low-index layer B having a refractive index n 150 nm, c) an absorbing high-index layer C having a refractive index n≧1.8 and also, d) optionally an outer protective layer D, wherein the multilayer pearlescent pigments have a cumulative frequency distribution of the volume-averaged size distribution function, with the indices D10, D50, D90 and a span ΔD of 0.7-1.4, the span ΔD being calculated in accordance with the formula ΔD=(D90−D10)/D50. The disclosure further relates to a method for producing these multilayer pigments, and to their use.
摘要:
Multilayer pearlescent pigments comprising platelet-shaped transparent substrates provided with an optically active coating, where the coating includes at least(a) a nonabsorbing high-index layer A having a refractive index n≧1.8, (b) a low-index layer B having a refractive index n
摘要翻译:多层珠光颜料包括具有光学活性涂层的片状透明基材,其中涂层至少包含(a)折射率n≥1.8的非吸收性高折射率层A,(b)低折射率层B具有 折射率n <1.8,(c)折射率n≥1.8的非吸收性高折射率层C,以及(d)任选的至少一个外保护层D,其中颜料具有体积平均值的累积频率分布 尺寸分布函数,具有指数D10,D50,D90和跨度&Dgr; D在0.7-1.4的范围内,跨度&Dgr; D根据公式(I)&Dgr计算; D =(D90-D10)/ D50(I)。 本发明进一步涉及一种生产这些多层珠光颜料的方法,以及它们的用途。
摘要:
Multilayer pearlescent pigments with a silver interference color, based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least a) a high-index layer A having a refractive index n≧1.8 b) a low-index layer B having a refractive index n
摘要翻译:具有银干涉色的多层珠光颜料,基于具有光学活性涂层的片状透明基底,其中光学活性涂层至少包括a)折射率n≥1.8b的高折射率层A) 具有折射率n <1.8c的折射率层B)具有折射率n≥1.8的高折射率层C,以及d)任选的外部保护层D.多层珠光颜料具有来自该层的珠光颜料D10,D50,D90 体积平均尺寸分布函数的累积频率分布,跨度&Dgr; D为0.7-1.4,跨度&Dgr; D根据公式Dgr计算; D =(D90-D10)/ D50。 本发明还涉及一种生产这些多层珠光颜料的方法,以及它们的用途。
摘要:
The invention relates to effect pigments having an aluminum core or aluminum alloy core and an aluminum oxide-containing or aluminum oxide/hydroxide-containing layer enveloping said aluminum core or aluminum alloy core, obtained by chemical wet-process oxidation of lamellar aluminum pigments or aluminum alloy pigments, the content of metallic aluminum in the aluminum core or aluminum alloy core being not more than 90% by weight, based on the total weight of the pigment, wherein the oxidized aluminum pigments or aluminum alloy pigments exhibit at least one highly refractive metal chalcogenide layer having a refractive index of >1.95, and a mixed layer is formed between the highly refractive metal chalcogenide layer and the enveloping aluminum oxide-containing or aluminum oxide/hydroxide-containing layer. The invention further relates to a process for the production of such effect pigments and to the use thereof.
摘要:
Multilayer pearlescent pigments with a silver interference color, based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least a) a high-index layer A having a refractive index n ≧1.8 b) a low-index layer B having a refractive index n
摘要翻译:具有银干涉色的多层珠光颜料,基于具有光学活性涂层的片状透明基底,其中光学活性涂层至少包括a)折射率n≥1.8b的高折射率层A) 具有折射率n <1.8c的折射率层B)具有折射率n≥1.8的高折射率层C,以及d)任选的外部保护层D.多层珠光颜料具有来自该层的珠光颜料D10,D50,D90 体积平均尺寸分布函数的累积频率分布,跨度&Dgr; D为0.7-1.4,跨度&Dgr; D根据公式Dgr计算; D =(D90-D10)/ D50。 本发明还涉及一种生产这些多层珠光颜料的方法,以及它们的用途。