Light resistant colorant and composition containing the same

Details Light resistant colorant and composition containing the same Light resistant colorant and composition containing the same

2006-06-20

2006-06-20

Aulakh, Charanjit S. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C534S560000, C252S582000, C106S493000, C546S234000, C546S231000

Reexamination Certificate

active

07064210

ABSTRACT:
A light resistant colorant is obtained by coupling a dye or a pigment with a light resistant material. A light resistant colorant-containing composition has no additional light stabilizer. Therefore, side effects caused by the addition of a light stabilizer, such as precipitate generation, may be prevented. Furthermore, substrates to which the composition is applied preserve excellent light resistance for a long term.

REFERENCES:
patent: 6187387 (2001-02-01), Bolle et al.
patent: 1237501 (1999-08-01), None
China Office Action Jan. 7, 2005.

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