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US 9,221,929 B2Granted
Carrier resins with improved relative humidity sensitivity
AssigneesXerox Corporation, National Research Council of Canada
InventorsRichard PN Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov
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Abstract
The disclosure describes dry acrylate resin particles, optionally, with a C/O of at least about 4, comprising a heterocycle comprising sulfur, exhibiting high charge and improved RH sensitivity.
Claims12
Resin particles comprising a copolymer:
- wherein the copolymer comprises,
- at least one cycloacrylate monomer;
- at least one charge control agent monomer comprising a structure as set forth in formula (I) or isomers thereof:
- wherein R1 is methyl or H;
- and R2 is an aryl, a cyclic heteroalkyl, cyclic heteroalkylalkyl or a cyclic heteroalkylaryl comprising at least one sulfur atom, and wherein the resin has a carbon:oxygen (C/O) ratio of at least about 4, and wherein the copolymers form particles with a size from about 40 nm to about 200 nm.
2 more elements
Resin particles comprising a copolymer:
- wherein the copolymer comprises,
- at least one cyclohexylmethacrylate monomer;
- at least one charge control agent monomer having the structure as set forth in formula (II) or isomers thereof:
- wherein R1 is methyl or H, and the copolymers form particles with a size from about 40 nm to about 200 nm.
1 more element
Dependencies are inferred from the claim text.