Blue inorganic colourants/pigments and process for preparation thereof

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United States of America Patent

PATENT NO 9803063
APP PUB NO 20150218340A1
SERIAL NO

14421919

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Abstract

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Nontoxic Near infra-red Reflecting (NIR) inorganic pigments, characteristically blue and well suited for the coloration of a wide variety of substrates, for example, plastics and concrete building roofing material, etc., comprise mixed metal silicate having the general formula: LaxSr1-xCu1-yLiySi4O10, where x is equal to 0 to 0.5 and y is equal to 0 to 0.5. These silicates with tetragonal crystal structure are prepared by calcination method in air atmosphere.

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Patent Owner(s)

Patent OwnerAddress
COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCHNEW DELHI 110001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jose, Sheethu Thiruvananthapuram, IN 1 18
Reddy, Mundlapudi Lakshmipathi Thiruvananthapuram, IN 4 22

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