| 摘要 |
A positively charged liquid developer comprised of liquid, thermoplastic resin particles, optional pigment, a charge director, and an insoluble charge adjuvant comprised of a copolymer of an alkyl acrylamidoglycolate alkyl ether and an alkenylester, and wherein the charge adjuvant is associated with or combined with said resin and said optional pigment, and which charge adjuvant is of the formula o 20 carbons; R2 is H, alkyl of 1 to 20, aryl of 6 to 20 carbons, and aryl alkyl of 7 to 35 carbons; m is from 0 to about 10; and wherein the alkyl and aryl groups optionally contain heteroatoms of F, Cl, O, S, N, Si, and P; R3 and R4 are alkyl; and x and y represent the number of segments.
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