Encapsulated toner compositions incorporating organic...

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Reexamination Certificate

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C430S110200

Reexamination Certificate

active

07629097

ABSTRACT:
The present invention is an electrostatographic core shell toner which includes as a core material of at least two nonpolymeric compounds each independently corresponding to the structure (R1Y1)p[(Z1Y2)mR2Y3]nZ2Y4R3. M is zero or one, n is zero up to an integer at which said compound starts to become a polymer and p is an integer of from one to eight. Each of R1and R3is independently a monovalent aliphatic or cycloaliphatic hydrocarbon group an aromatic group or a multicyclic aromatic nucleus. Each of R2, Z1and Z2independently represent multivalent aliphatic or cycloaliphatic hydrocarbon groups or an aromatic group. Y1, Y2, Y3and Y4each independently represent one or more linking groups. The core material is surrounded by a shell that includes an amorphous matrix.

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