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Manganese vanadium tantalum oxide and pigments having a black metallic effect coated with the same

A technology of oxide, vanadium and tantalum, applied in the direction of manganese compound, inorganic pigment treatment, reflective/signal coating, etc., can solve the problem of no black appearance

Active Publication Date: 2014-12-10
SILBERLINE MFG CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such "cool pigments" are typically dark brown in color and are not true black pigments, that is, the pigment does not exhibit a black appearance when viewed from an angle

Method used

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  • Manganese vanadium tantalum oxide and pigments having a black metallic effect coated with the same
  • Manganese vanadium tantalum oxide and pigments having a black metallic effect coated with the same
  • Manganese vanadium tantalum oxide and pigments having a black metallic effect coated with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Embodiment 1 solid state reaction method produces disclosed material

[0069] 35.87 g MnO 2 , 18.68 g V 2 o 5 and 45.42 grams of Ta 2 o 5 After mixing, grind together for 30 minutes in an automatic grinder. The formed powder was transferred into an aluminum crucible, and the crucible was placed in a furnace, heated to 1000° C. (heating rate 10° C. / minute) and kept for 4 hours. Afterwards, the crucible was cooled and the granular product formed was removed. The product was ground with an automatic mortar and pestle and then finely ground with a ball mill. The resulting product consists of two crystal modifications ("phases") of the disclosed materials. The color of the product obtained after grinding was brown. The resulting product exhibited a solar reflectance value of approximately 30%.

Embodiment 2

[0070] Example 2 Wet Production of Disclosed Materials

[0071] By stirring, 3.96 g of MnCl 2 4H 2 O was dissolved in 4 mL of water to form a solution with a pH of 2.5. By stirring, 1.16 g of NH 4 VO 3 Dissolve in 16mL of 1M NaOH solution. The above solutions were added together to precipitate a brown precursor paste. 2.21 g of Ta 2 o 5 Mix into the Mn / V precursor paste and mix until homogeneous in a mortar and pestle. The paste was transferred into an aluminum crucible, and the crucible was placed in a furnace, heated to 1000°C (heating rate 10°C / min) and kept for 4 hours. Afterwards, the crucible was cooled and the granular product formed was removed. The product was ground with an automatic mortar and pestle and then finely ground with a ball mill. The resulting product consists of two crystal modifications ("phases") of the disclosed materials. The resulting product was lighter in color and exhibited a solar reflectance value of about 40% compared to that obtain...

Embodiment 3

[0072] Example 3 Melt Production of Disclosed Materials

[0073] 5.04 g MnO 2 , 4.09 g V 2 o 5 and 2.19 g Ta 2 o 5 After mixing, transfer to an aluminum crucible, place the crucible in a furnace, and heat to 1400° C. at a rate of 300° C. / hour. The resulting melt was held at that temperature for 15 minutes. Afterwards, the crucible was removed and the melt was quenched by pouring it onto a metal tray. The product is ground with an automatic mortar and pestle, then finely ground with a ball mill. The product formed throughout the process was single phase and exhibited a solar reflectance value of 33%. One phase can provide deeper color and higher solar reflectance values ​​than products obtained by solid state reaction methods.

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Abstract

Manganese vanadium tantalum oxide that can be represented by the formula Mn x V y Ta z O w , where x, y, z and w are as defined in the description, methods of producing Mn x V y Ta z O w , a particle that includes Mn x V y Ta z O w and / or a chalcogenide glass layer, and a method of producing the particle are described. The disclosed manganese vanadium tantalum oxide has superior near-infrared reflective properties. The disclosed methods of producing the manganese vanadium tantalum oxide provide products with superior phase purity, appearance and performance and take health and safety into consideration.

Description

technical field [0001] The present invention generally relates to the synthesis of mixed metal oxides with infrared reflective properties and the design of pigments containing the mixed metal oxides. Background technique [0002] Pigments with high infrared reflectivity are known. For example, with the general formula Mn x V y o z Manganese vanadium oxide pigments (wherein 2x+2.5y≥z) have infrared reflectivity and are formed by a solid state reaction method. In this method, starting materials are mixed and ground together to form a fine, homogeneous dry mixture. While the synthesis of such mixed metal oxides by solid-state reaction methods is standard practice for this type of solid-state processing, improvements can be made not only to existing materials but also to their fabrication methods. [0003] Black pigments are known. For example, black pigments can be formed using black iron oxide on a mica substrate. These pigments are black, but suffer from a weak metalli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00C09C3/04C09D7/12C09D5/33F03D9/00
CPCC01P2006/63C03C3/321C09C1/0021C09C1/00C01P2006/64C01P2006/62C01P2002/52C01G45/006C09C2210/10C09C2200/1004C01P2002/54C01P2004/61Y10T428/252Y10T428/256Y10T428/2991Y10T428/2993Y10T428/2996C09C3/063
Inventor S·沃伦德林海晖P·J·M·李奇比R·彼基曼尼D·B·拉斯卡D·奥尔德斯
Owner SILBERLINE MFG CO INC