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A coated bismuth oxy halide-based pigment

一种卤氧化铋、颜料的技术，应用在基于卤氧化铋的颜料领域，能够解决缺乏热稳定性等问题

Inactive Publication Date: 2018-10-23
FELLOWES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still lacks thermal stability in the bulk coloring of polyamides

Method used

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  • A coated bismuth oxy halide-based pigment
  • A coated bismuth oxy halide-based pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 180 g of LYSOPAC ORANGE 6821B pigment and 18.1 g of a 25% by weight silicate solution were dispersed in 820 ml of water. The volume was then adjusted to 8600 ml by adding a mixture of water and 1 g of sodium hydroxide and the temperature was raised to 90° C. (1° C. / min). 199.6g 25% (weight) sodium silicate (Na 2 SiO 3 ) solution diluted with water to a volume of 360ml and then added to the reactor over a period of 30 minutes to 1 hour. Then 7.2 g of amino-3-propyltriethoxysilane were added, and then the pH was adjusted to 2.5 over 2.5 hours. Then 3.6 g of amino-3-propyltriethoxysilane were added to the reactor. A mixture of 16 g of organomodified polysiloxane emulsion and 65 ml of water was added to the reactor. 18.6 g calcium chloride (CaCl 2 2H 2 O) and 52.9g aluminum sulfate (Al 2 (SO 4 ) 3 ·xH 2 O, calculated as 17 wt% Al 2 o 3 ) mixture and stir for at least 5 minutes. In the presence of 0.86 g of nonionic surfactant (ethoxylated alcohol), a dispersion...

Embodiment 2

[0075] 180 g of LYSOPAC ORANGE 6821B pigment and 18.1 g of a 25% by weight silicate solution were dispersed in 820 ml of water. The volume was then adjusted to 8600 ml by adding a mixture of water and 1 g of sodium hydroxide and the temperature was raised to 90° C. (1° C. / min). 199.6g 25% (weight) sodium silicate (Na 2 SiO 3 ) solution diluted with water to a volume of 360ml and then added to the reactor over a period of 30 minutes to 1 hour. Then 7.2 g of amino-3-propyltriethoxysilane were added, and then the pH was adjusted to 2.5 over 2.5 hours. Then 3.6 g of amino-3-propyltriethoxysilane were added to the reactor. A mixture of 16 g of organomodified polysiloxane emulsion and 65 ml of water was added to the reactor. 18.6 g calcium chloride (CaCl 2 2H 2 O) and 52.9g aluminum sulfate (Al 2 (SO 4 ) 3 ·xH 2 O, calculated as 17 wt% Al 2 o 3 ) mixture and stir for at least 5 minutes. In the presence of 0.86 g of nonionic surfactant (ethoxylated alcohol), 7.2 g of tri...

Embodiment 3

[0076] Embodiment 3 (comparative example)

[0077] 180 g of LYSOPAC ORANGE 6821B pigment and 18.1 g of a 25% by weight silicate solution were dispersed in 820 ml of water. The volume was then adjusted to 8600 ml by adding a mixture of water and 1 g of sodium hydroxide and the temperature was raised to 90° C. (1° C. / min). 199.6g 25% (weight) sodium silicate (Na 2 SiO 3 ) solution diluted with water to a volume of 360ml and then added to the reactor over a period of 30 minutes to 1 hour. Then 7.2 g of amino-3-propyltriethoxysilane were added, and then the pH was adjusted to 2.5 over 2.5 hours. Then 3.6 g of amino-3-propyltriethoxysilane were added to the reactor. 18.6 g calcium chloride (CaCl 2 2H 2 O) and 52.9g aluminum sulfate (Al 2 (SO 4 ) 3 ·xH 2 O, calculated as 17 wt% Al 2 o 3) mixture and stir for at least 5 minutes. In the presence of 0.86 g of nonionic surfactant (ethoxylated alcohol), a dispersion of 14.4 g of tris(2,4-tert-butylphenyl) phosphite was prepa...

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Abstract

The present invention is directed to a coated bismuth oxy halide-based pigment having a coating comprising an antioxidant, said antioxidant is being a phenol based, a phosphite or phosphonate based, or a thioether based stabilizer, and the coating comprising an inner coating and an outer coating, wherein the outer coating comprises the antioxidant, and wherein the inner coating comprises a first layer consisting of one or more salts, or one or more oxides, heteropolyacids, organic acids, sulphites, sulfides, sulfates, phosphates, pyrophosphates, polyphosphates, hydrates, carbonates, or a combination thereof, selected from the group of alkali-earth metals, metals, non-metals, transition metals or lanthanides. Further, the present invention is directed to a composition comprising a paint, alacquer, an ink, a cosmetic, a resin, a plastisol or a polymer formulation, and such pigment. In addition, the present invention is directed to a method for manufacturing a coated bismuth oxy halide-based pigment, said method comprising the steps of: - providing a dispersion of a bismuth oxy halide-based pigment, adding a dispersion of an antioxidant, mixing and drying.

Description

technical field [0001] The present invention relates to a coated bismuth oxyhalide based pigment, to a composition comprising paint, varnish, ink, cosmetic, resin or plastic and such pigment, and to the manufacture of such coated A method for pigments based on bismuth oxyhalides. Background technique [0002] The high-volume coloration of polymers processed at high temperatures, such as engineering plastics, especially polyamides (PA), is usually carried out using so-called solvent dyes, which are soluble in the polyamide block at high processing temperatures and which, in addition to their Necessary high heat resistance, but also sufficient chemical stability to highly reducing media such as polyamide melts. However, as described in US8461229, soluble dyes generally have much poorer light fastness than pigments. [0003] With regard to organic pigments in the orange spectrum, there are only limited available pigments that meet the high temperature thermal stability requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00A61K8/02C09D5/29C09D7/61C08K9/04C09D7/62
CPCC09C1/0015C08K9/04C09C2200/1087C09C2220/103C09D7/62C08K9/12C09C1/0006C08L77/00C09D11/037C09D177/00C09D7/48
Inventor 格里塔·沃斯帕耶尤尔根·德海夫洛塞文森特·德维勒艾曼纽·克拉博
Owner FELLOWES INC
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