EP0155780A2
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Infra-red absorber
Assignee: Avecia Ltd
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Filing: 1985-02-26
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Granted: —
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Expires: 2005-02-26
Abstract
Abstract A 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 1, 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. The 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. <CHEM>
Inventors
- 👤 Peter John Duggan
- 👤 Paul Francis Gordon
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 04:34
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/22; C09; C09B; C09B47/00; C09B47/04; C09B47/045; C09B47/06; C09B47/067; C09B47/0675; C09B47/0676; C09B47/08; C09B47/20; C09B47/22; C09B47/30
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
60 words
A phthalocyanine compound in which each of five of the peripheral carbon atoms in the 1, 4, 5, 8, 9, 12, 13 and 16 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.
Claim 2
Dependent Claim
60 words
A phthalocyanine compound in which each of five of the peripheral carbon atoms in the 1, 4, 5, 8, 9, 12, 13 and 16 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.
Claim 3
Dependent Claim
57 words
A phthalocyanine compound according to Claim I wherein each of the eight peripheral carbon atoms in the 1, 4, 5, 8, 9, 12, 13 and 16 positions of the phthalocyanine nucleus 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.
Claim 4
Dependent Claim
19 words
A phthalocyanine compound according to Claim 2 wherein the remaining peripheral carbon atoms of the phthalocyanine nucleus are unsubstituted.
Claim 5
Dependent Claim
50 words
A phthalocyanine compound according to Claim 1 or Claim 2 wherein each of from one to eight of the remaining peripheral carbon atoms of the phthalocyanine nucleus is linked by an atom from Group VB of Group VIB of the Periodic Table to a carbon atom of an organic radical.
Claim 6
Dependent Claim
51 words
A phthalocyanine compound according to any one of Claims 1, 2 and 4 wherein each of fifteen or sixteen of the peripheral carbon atoms of the phthalocyanine nucleus is linked by an atom from Group VB or Group VIB of the Periodic Table to a carbon atom of an organic radical.
Claim 7
Dependent Claim
19 words
A phthalocyanine compound according to any one of Claims 1 to 5 having an absorption maximum above 750 mpm.
Claim 8
Dependent Claim
25 words
A phthalocyanine compound according to any one of Claims 1 to 6 wherein the organic radical is an optionally substituted aliphatic, cycloaliphatic or aromatic radical.
Claim 9
Dependent Claim
23 words
A phthalocyanine compound according to Claim 7 wherein the organic radical is an optionally substituted phenyl, naphthyl or mono- or bi-cyclic heteroaromatic radical.
Claim 10
Dependent Claim
41 words
A phthalocyanine compound according to any one of Claims 1 to 8 wherein the organic radical is bivalent and attached to adjacent peripheral carbon atoms on the phthalocyanine nucleus through atoms from Group VB or Group VIB of the Periodic Table.
Claim 11
Dependent Claim
31 words
A phthalocyanine compound according to any one of Claims 1 to 9 wherein the atom from Group VB or Group VIB of the Periodic Table is sulphur, selenium, tellurium or nitrogen.
Claim 12
Dependent Claim
35 words
A phthalocyanine compound according to any one of Claims 4 to 10 wherein at least one of the peripheral carbon atoms of the phthalocyanine nucleus is linked to an organic radical through an oxygen atom.
Claim 13
Dependent Claim
40 words
A process for the preparation of a phthalocyanine compound according to Claim 3 in which the atom from Group VIB is sulphur which comprises heating an octa-3,6-halo-phthalocyanine with at least eight equivalents of an organic thiol in an organic solvent.
Claim 14
Dependent Claim
36 words
A process for the preparation of a phthalocyanine compound according to Claim 3 in which the atom from Group VIB is sulphur which comprises heating a 3,6-di(substituted-thio)phthalonitrile in a solvent in the presence of a base.
Claim 15
Dependent Claim
54 words
A process for the preparation of a phthalocyanine compound according to Claim 4 in which the atom from Group VIB is sulphur which comprises heating a phthalocyanine carrying from nine to sixteen halo groups attached to the preripheral carbon atoms with from nine to sixteen equivalents of an organic thiol in an organic solvent.
Claim 16
Dependent Claim
23 words
A substrate capable of absorbing infra-red radiation containing or coated with a phthalocyanine compound according to any one of Claims I to 11.
References Cited (Backward Citations)
GB1489394A
Cited
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