MOTHER-OF-PEARL PIGMENT BASED ON MONOLITHIC-FORMED SUBSTRATES, METHOD FOR PRODUCTION AND APPLICATION THEREOF Russian patent published in 2019 - IPC C09C1/40 C09C3/06 C09D5/36 C09D11/37 

Abstract RU 2685659 C1

FIELD: chemistry.

SUBSTANCE: invention relates to semitransparent mother-of-pearl pigments, a method for production and use thereof. Said mother-of-pearl pigments are monolithically formed plates of the metal oxide substrate, having average thickness of 1–40 nm and a shape factor as a ratio of the average size to the average thickness of at least 80. Said plates of the substrate are completely coated with at least one substantially transparent coating A and contain at least one interference layer of coating B. At that, A consists of at least one low-refracting metal oxide and/or metal oxide hydrate with a refraction index of less than 1.8; B consists of at least one high-refractive metal oxide with refraction index equal to at least 1.8.

EFFECT: invention provides a flexible and cost-effective method of producing environmentally safe mother-of-pearl pigments with high coating power, stability and high color saturation.

12 cl, 3 dwg, 2 tbl, 6 ex

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RU 2 685 659 C1

Authors

Khuber Adalbert

Pikh Fabian

Shimitsu Kajman

Dates

2019-04-22Published

2016-04-15Filed