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US 4,382,033 AGranted
Novel phthalocyanine pigments
AssigneeEastman Kodak Company
InventorMichael T. Regan
Life of this patent
Estimating the term…
Abstract
Novel phthalocyanine pigments having the structure: ##STR1## wherein: R.sub.1 represents ##STR2## n represents 1, 2, 3 or any combination of 1, 2 and 3. R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent alkyl, alkylaryl, alkoxy, alkoxyaryl, cycloalkyl, aryl, aralkyl or aryloxy; R.sub.6 represents hydrogen or chlorine and AlPc represents ##STR3## are useful in electrographic developers and photoelectrophoretic imaging materials and processes.
Claims3
A phthalocyanine pigment having the structure:
- ##STR21## wherein:
- R.sub.1 represents ##STR22## n represents 1, 2, 3 or any combination of 1, 2 and 3, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent alkyl, alkylaryl, alkoxy, alkoxyaryl, cycloalkyl, aryl, aralkyl or aryloxy;
- R.sub.6 represents hydrogen or chlorine and
- AlPc represents ##STR23##
1 more element
A phthalocyanine pigment having the structure:
- ##STR24##
Dependencies are inferred from the claim text.