Phthalocyanine compound, method for production thereof, and...

Details Phthalocyanine compound, method for production thereof, and... Phthalocyanine compound, method for production thereof, and...

2007-07-03

2007-07-03

Wilson, James O. (Department: 1624)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C540S137000, C540S140000, C252S587000, C524S088000

Reexamination Certificate

active

10458349

ABSTRACT:
A phthalocyanine compound (1) of a specific structure excelling in ability to absorb near infrared, ability to effect selective absorption of near infrared radiation particularly in a wavelength range exceeding 920 nm and falling short of 1050 nm, solubility in a solvent as well, compatibility with resin, and in such characteristic properties as heat resistance, light resistance, and weatherability, and a near infrared absorbing filter characterized by using the phthalocyanine compound (1) and phthalocyanine compound (2) having a maximum absorption wavelength at least in the range of 800–920 nm are provided. It enjoys a long service life and permits extensive use without selecting a substrate.

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patent: 2002-228828 (2002-08-01), None

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