C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 11/55 (2006.01) C09K 11/08 (2006.01) C09K 11/61 (2006.01)
Patent
CA 2360028
A process for improving the half-life of ZnS:Cu,Cl electroluminescent phosphor wherein the improvement comprises firing a previously first fired material comprised of ZnS:Cu,Cl with a quantity of MgSO4.cndot.7H2O to form a second fired material. The quantity is from 0.015 to 0.15 mole of MgSO4.cndot.7H2O/mole of ZnS.
Northrop Shellie K.
Vaddi Butchi Reddy
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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