Multicolored thermally recording medium

Details Multicolored thermally recording medium Multicolored thermally recording medium

2007-06-19

2007-06-19

Hess, Bruce H. (Department: 1774)

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Plural colors or plural diverse systems

C503S214000

Reexamination Certificate

active

10505021

ABSTRACT:
In the multi colored thermally sensitive recording medium, at least one kind of dye precursor is contained in complex fine particles which contain dye precursor and polymer of multi valence isocyanate compound, further contain 4,4′-diisocyanate-3,3′-dimethyl-1,1′biphenyl and/or polymethylene.polyphenyl.polyisocyanate.

REFERENCES:
patent: 6680281 (2004-01-01), Tajiri et al.
patent: 2001-18529 (2001-01-01), None
patent: 2001-1138360 (2001-04-01), None
patent: 2001-239760 (2001-09-01), None
patent: 2002-002115 (2002-01-01), None

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