Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 31, 2017
Patent Application Number
14421919
Date Filed
May 2, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
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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