Patent number: 7572327
Abstract: A phthalocyanine dye of formula (I) is provided: wherein: M is a metal group or is absent; n is 1 or 2; X is selected from —CHR3—, —NR3—, —O— or —S—; R1, R2 and R3 are independently selected from hydrogen, C1-8 alkyl, C1-8 alkoxy, carboxy, carboxy-C1-8 alkyl, hydroxyl, hydroxy-C1-8 alkyl; or R1 and R2, or R2 and R3 together are joined to form a C4-12 aryl or C3-12 heteroaryl group, optionally substituted with 1, 2, 3 or 4 substituent groups, the or each substituent group being independently selected from C1-12 alkyl, C1-12 alkoxy, phenyl-C1-8 alkyl, phenyl-C1-8 alkoxy, —(OCH2CH2)dORd, cyano, halogen, amino, hydroxyl, thiol, —SRv, —NRuRv, nitro, phenyl, phenoxy, —CO2Rv, —C(O)Rv, —OCORv, —SO2Rv, OSO2Rv, —NHC(O)Rv, —CONRuRv, —CONRuRv, sulfonic acid, sulfonic acid salt and sulfonamide; d is an integer from 2 to 5000; Rd is H, C1-8 alkyl or C(O)C1-8 alkyl and Ru and Rv are independently selected from hydrogen, C1-12 alkyl, phenyl or phenyl-C1-8 alkyl.
Type:
Grant
Filed:
July 5, 2005
Date of Patent:
August 11, 2009
Assignee:
Silverbrook Research Pty Ltd
Inventors:
Simone Charlotte Vonwiller, Damon Donald Ridley, Sutharsiny Indusegaram, Scott Matthew Starling, Graciel Gonzaga, Kia Silverbrook