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

Claim 2:
3. A method comprising:
polymerizing polyamide monomers in the presence of an optical absorber that comprises an amino acid optical absorber to yield a polyamide having the optical absorber in a backbone of the polyamide;
wherein polymerizing is a polycondensation reaction and the polyamide monomers comprise a polyacid polyamide monomer and a polyamine polyamide monomer;
wherein the polyacid polyamide monomer is selected from the group consisting of HOOC—(CH2)n—COOH, where n is 1-20; isophthalic acid; terephthalic acid; pent-2-enedioic acid; dodec-2-enedioic acid; succinic acid; glutaric acid; adipic acid; pimelic acid; suberic acid; azeleic acid; sebacic acid; undecanedioic acid; dodecanedioic acid; 1,3-cyclohexanedicarboxylic acid; and any combination thereof;

and/or
wherein the polyamine polyamide monomer is selected from the group consisting of H2N—(CH2)n—NH2, where n is 1-20; 1,5-diamino-2-methylpentane; 1,2-diaminopropane; trimethylhexamethylenediamine; 2-methyloctane-1,8-diamine; n-methyl 1,6-hexamethylene diamine, where n is 2 or 3; n-methyl 1,7-heptamethylene diamine, where n is 2-4; n-methyl 1,8-octamethylene diamine, where n is 2-4; n-methyl 1,12-dodecamethylene diamine, where n is 2-6; 1,3-bis(aminomethyl)benzene; ortho-phenylene-bis(methylamine); 1,4-bis(aminomethyl)benzene; 1,4-cyclohexanediamine; 4-methylcyclohexane-1,3-diamine; 4-methylcyclohexane-1,3-diamine; diphenylethylenediamine; 1,3-bis(aminomethyl)cyclohexane; 4,4′-methylenebis(cyclohexylamine); 4,4′-biphenyldiamine; 1,8-diaminonaphthalene; and any combination thereof.