Infra-red absorber

Details Infra-red absorber Infra-red absorber

1985-03-21

1986-08-19

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540123, 540124, 540125, 540127, 540128, 540130, 540135, 540136, 540137, 540139, 540140, C09B 4704

Patent

active

046068597

ABSTRACT:
An infra-red absorbing phthalocyanine compound in which each of at least five of the peripheral carbon atoms in the 1, 4, 5, 8, 9, 12, 13 or 16 positions (the "3,6-positions") of the phthalocyanine nucleus, as shown in Formula I, is linked by an atom from Group VB or Group VIB of the Periodic Table, other than oxygen, to a carbon atom of an organic radical. In preferred compounds each of the eight 3,6-positions is linked by an atoms from Group VB or Group VIB, especially sulphur, selenium or nitrogen, to an organic radical. ##STR1##

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