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US 5,151,520 AGranted
Cationic dye-triarylmonoalkylorate anion complexes
AssigneeThe Mead Corporation
InventorsPeter Gottschalk, Douglas C. Neckers, Gary B. Schuster
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Abstract
A cationic dye-borate anion compound represented by the formula: ##STR1## where D+ is a cationic dye moiety selected from the group consisting of cationic cyanine, carbocyanine, hemicyanine, rhodamine, and azamethine dyes; R.sup.1 is alkyl; and R.sup.2, R.sup.3, and R.sup.4 are aryl. Such cationic dye-borate anion compounds are useful photoinitiators of free radical addition reactions.
Claims12
A compound represented by the formula (I):
- ##STR39## where D+ is a cationic dye moiety selected from the group consisting of cationic cyanine, carbocyanine, dicarbocyanine, tricarbocyanmine, hemicyanine, rhodamine, and azamethine dyes;
- R.sup.1 is alkyl;
- and R.sup.2, R.sup.3, and R.sup.4 are aryl.
Dependencies are inferred from the claim text.