Substituted phthalocyanine
AssigneeImperial Chemical Industries PLC
InventorWilliam M. Stark
Life of this patent
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Abstract
A phthalocyanine compound of the formula: ##STR1## wherein Pc is a phthalocyanine nucleus; each R independently is optionally substituted phenyl; m is 4 to 12; V is H or C.sub.1-4 -alkyl; each R.sup.1 independently is optionally substituted phenylene or naphthylene in which the S atom and group N-V are attached to adjacent nuclear carbon atoms; and n is 2 to 6; provided that R is not R.sup.1 -NHV. The compounds have a significant absorption band in the near infra red and are soluble in non-polar organic media. The compounds are useful in many applications where absorption of infra-red radiation is desirable, such as in OCR readable inks, security printing and reprographic toners.
Claims6
A phthalocyanine compound of the formula:
- ##STR6## wherein Pc is a phthalocyanine nucleus;
- each R independently is selected from phenyl, naphthyl and phenyl substituted by from 1 to 3 substituents selected from C.sub.1-10 -alkyl, C.sub.1-10 -alkoxy, S-C.sub.1-10 -alkyl, halogen, phenyl, COOH, COT.sup.1, CONT.sup.1 T.sup.2, SO.sub.2 T.sup.1 and SO.sub.2 NT.sup.1 T.sup.2 in which T.sup.1 and T.sup.2 are selected from H, alkyl, aryl and aralkyl;
- m is 4 to 12;
- V is H or C.sub.1-4 -alkyl;
- each R.sup.1 independently is selected from phenylene, naphthylene, substituted phenylene and substituted naphthylene in which the substituents are selected from C.sub.1-10 -alkyl, C.sub.1-10 -alkoxy, S-C.sub.1-10 -alkyl, halogen, phenyl, COOH, COT.sup.1, CONT.sup.1 T.sup.2, SO.sub.2 T.sup.1 and SO.sub.2 NT.sup.1 T.sup.2 in which T.sup.1 and T.sup.2 are selected from H, alkyl, aryl and aralkyl;
- and the S atom and the group N-V are attached to adjacent nuclear carbon atoms;
- and n is 2 to 6.
A compound of the formula:
- ##STR7## wherein Pc is a phthalocyanine nucleus;
- each R independently is selected from phenyl, naphthyl and phenyl substituted by from 1 to 3 substituents selected from C.sub.1-10 -alkyl, C.sub.1-10 -alkoxy, S-C.sub.1-10 -alkyl, halogen, phenyl, COOH, COT.sup.1, CONT.sup.1 T.sup.2, SO.sub.2 T.sup.1 and SO.sub.2 NT.sup.1 T.sup.2 in which T.sup.1 and T.sup.2 are selected from H, alkyl, aryl and aralkyl;
- m is 4 to 12;
- V is H or C.sub.1-4 -alkyl;
- n is 2 to 6;
- and W, X, Y & Z are each independently selected from
- H, halogen and C.sub.1-10 -alkyl;
- or any adjacent pair of W, X, Y & Z represents a fused benzene ring which is unsubstituted or substituted by halogen or C.sub.1-10 -alkyl.
A phthalocyanine compound of the formula:
- ##STR8## wherein:
- R is phenyl, 4-(C.sub.1-4 -alkyl)phenyl or 4-(C.sub.1-4 -alkoxy)phenyl;
- m is 7 or 8;
- n is 4;
- V, W, X, Y & Z are H;
- and Pc is Cu(II)Pc.
Dependencies are inferred from the claim text.