Stock material or miscellaneous articles – Ink jet stock for printing – Quaternary ammonium compound ink receptive layer
Reexamination Certificate
2005-05-24
2005-05-24
Shewareged, B. (Department: 1774)
Stock material or miscellaneous articles
Ink jet stock for printing
Quaternary ammonium compound ink receptive layer
C428S032330, C428S032340, C428S032350
Reexamination Certificate
active
06896942
ABSTRACT:
A coating composition comprising cationic colloidal silicas and ink jet recording sheets prepared from such coatings is described. The coating comprises binder and polydispersed cationic colloidal silica. The cationic colloidal silica preferably has an average particle size in the range of about 1 to about 300 nanometers. It has been discovered that if a cationic polydispersed colloidal silica is employed in a glossy coating formulation, the coating provides a specular gloss of at least 30 at 60° C., even at a relatively high silica solids to binder solids ratio of 1:1 or greater, but also a coating having good to excellent printability characteristics.
REFERENCES:
patent: 2244325 (1941-06-01), Bird
patent: 2574902 (1951-11-01), Bechtold
patent: 2577484 (1951-12-01), Rule
patent: 2577485 (1951-12-01), Rule
patent: 2631134 (1953-03-01), Iler
patent: 2750345 (1956-06-01), Alexander
patent: 2773028 (1956-12-01), Monet
patent: 2892797 (1959-06-01), Alexander et al.
patent: 3012972 (1961-12-01), Rule
patent: 3440174 (1969-04-01), Albrecht
patent: 3969266 (1976-07-01), Iler
patent: 5576088 (1996-11-01), Ogawa et al.
patent: 5756226 (1998-05-01), Valentini et al.
patent: 5966150 (1999-10-01), Lester et al.
patent: 6086700 (2000-07-01), Valentini et al.
patent: 6309709 (2001-10-01), Valentini et al.
patent: 6497940 (2002-12-01), Valentini et al.
patent: 20020034613 (2002-03-01), Liu et al.
patent: 20030180478 (2003-09-01), Fruge et al.
patent: 20030180480 (2003-09-01), Fruge et al.
patent: 20030180483 (2003-09-01), Fruge et al.
patent: 20030198759 (2003-10-01), Fruge et al.
patent: 0 586 846 (1994-03-01), None
patent: 0 685 344 (1995-12-01), None
patent: 0 759 365 (1997-02-01), None
patent: 1 008 457 (2000-06-01), None
patent: 1 016 546 (2000-07-01), None
patent: 00 20221 (2000-04-01), None
G. W. Sears, Jr., Analytical Chemistry, vol. 28, p. 1981 (1956).
Fruge Daniel Ray
Michos Demetrius
Bunch William D.
Shewareged B.
W. R. Grace & Co. - Conn.
LandOfFree
Coating composition comprising colloidal silica and glossy... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coating composition comprising colloidal silica and glossy..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating composition comprising colloidal silica and glossy... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3377234