Patent ID: 11866581
Assignee: XEROX CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 8:
9. A composition comprising:
particles comprising a polyamide having an optical absorber in a backbone of the polyamide (IBOA-polyamide) and nanoparticles associated with an outer surface of the particles,
wherein substantially all of the nanoparticles are associated with the outer surface of the particles and the particles have a circularity of about 0.90 to about 1.0, and
wherein the optical absorber comprises at least one optical absorber selected from the group consisting of N,N-di(4-aminophenyl)1-aminopyrene; N,N-bis(4-aminophenyl)-N′-4-methoxyphenyl-N′-4-(1,2,2-triphenylethenyl)phenyl-1,4-phenylenediamine, 4,5-diamino-rhodamine B; rhodamine 123; 2,7-dimethylacridine-3,6-diamine; 2-nitro-1,4-phenylenediamine; 4-[(4-aminophenyl)-(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]aniline hydrochloride; 4,8-diamino-1,5-dihydroxy-9,10-dioxoanthracene-2-sulfonate sodium; 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; 4-amino-1,8-naphthalimide; and 7-amino-4-methyl-3-coumarinylacetic acid.