Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2011-08-23
2011-08-23
Garrett, Dawn L. (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C427S058000, C560S048000, C524S186000
Reexamination Certificate
active
08003228
ABSTRACT:
New, highly photoluminescent compounds are described having structural formula (I)wherein:R1, R2, R3, R4, independently from each other, represent H; alkyl, alkenyl; aryl; —(CH2CH2—O)n—CH3. These compounds are highly photoluminescent and have high quantum yield; they have optimal plasticity characteristics and optimal miscibility with other amorphous polymers; they lead to the formation of thin, stable and uniform layers of photoluminescent material, obtainable by simple techniques of deposition from solution.A simple and high yield process is described for obtaining the aforesaid compounds. In addition, the use of the compounds of formula (I) and their polymer derivatives is described in the preparation of electroluminescent devices, for example LEDs.
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Roviello Antonio
Roviello Giuseppina
Russo Giuseppe
Salzillo Giovanna
Bohaty Andrew K
Garrett Dawn L.
Han Hai
Jorgenson Lisa K.
Seed IP Law Group PLLC
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