| US 7,465,348 B1 | ||
| Nanosized particles of monoazo laked pigment | ||
| Rina Carlini, Mississauga (Canada); C. Geoffrey Allen, Waterdown (Canada); Sandra J. Gardner, Oakville (Canada); Karl W. Dawson, Ottawa (Canada); Peter G. Odell, Mississauga (Canada); Paul F. Smith, Oakville (Canada); and Jennifer L. Belelie, Oakville (Canada) | ||
| Assigned to Xerox Corporation, Norwalk, Conn. (US) | ||
| Filed on Jun. 07, 2007, as Appl. No. 11/759,913. | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C09B 67/20 (2006.01); C09B 63/00 (2006.01); C09B 41/00 (2006.01); C09D 11/00 (2006.01); C09D 11/02 (2006.01) | ||
| U.S. Cl. 106—496 [106/31.61; 106/31.62; 106/31.65; 106/31.66; 106/31.67; 106/31.72; 106/31.73; 106/31.75; 106/31.8; 523/161; 534/579] | 32 Claims |
| 1. A nanoscale pigment particle composition, comprising:
an organic monoazo laked pigment having at least one functional moiety, and
a sterically bulky stabilizer compound having at least one functional group,
wherein the functional moiety associates non-covalently with the functional group; and
presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale-sized pigment
particles.
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