Hetero-polycyclic compounds, and coloring matters, pigments,...

Details Hetero-polycyclic compounds, and coloring matters, pigments,... Hetero-polycyclic compounds, and coloring matters, pigments,...

2004-02-12

2008-09-02

Tsang, Cecilia (Department: 4131)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S042000, C549S024000, C548S420000

Reexamination Certificate

active

07420065

ABSTRACT:
Provided are novel hetero-polycyclic compounds having a specific structure, color-changing material compositions comprising (A) a fluorescent coloring matter comprising at least one of the hetero-polycyclic compounds described above and (B) a binder material, color-changing films comprising the above hetero-polycyclic compounds, coloring matters comprising the above hetero-polycyclic compounds, and pigments or dyes comprising the hetero-polycyclic compounds described above, and provided are color-changing material compositions which are not deteriorated in a color-changing performance even after used for long time and which are prevented from being unusable due to deposition of coloring matters during storage and color-changing films produced by using the same, and novel hetero-polycyclic compounds, coloring matters and pigments or dyes which actualize them.

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