NICKEL-FREE GREEN PIGMENT
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United States of America Patent
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Nov 17, 2015
Grant Date -
Dec 10, 2015
app pub date -
Jun 4, 2014
filing date -
Jun 4, 2014
priority date (Note) -
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Abstract
A green pigment is a blend of metal oxides including a [124] spinel which can contain certain combinations of lithium, sodium, cobalt, zinc, calcium, magnesium, copper, titanium, manganese, tin, and germanium, and a [134] spinel which can contain certain combinations of lithium, sodium, chromium, boron, iron, manganese aluminum, titanium, tin and germanium. The pigment lacks nickel.
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