Patent ID: 11859051
Assignee: XEROX CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. The method of claim 3, wherein the optical absorber further comprises a polyacid optical absorber selected from the group consisting of calcein; 4-methylumbelliferone-8-methyliminodiacetic acid; 6-carboxyfluorescein; 3,9-perylenedicarboxylic acid; N,N-bis(4-tert-butylphenyl)-N′,N′-bis(4-carboxyphthalimido)-1,4-phenylenediamine; perylene-3,4,9,10-tetracarboxylic dianhydride; alizarin-3-methyliminodiacetic acid; and any combination thereof.