Stock material or miscellaneous articles – Ink jet stock for printing – Physical property of ink receptive layer specified
Reexamination Certificate
2008-07-01
2008-07-01
Lipman, Bernard (Department: 1796)
Stock material or miscellaneous articles
Ink jet stock for printing
Physical property of ink receptive layer specified
C428S032340, C428S032360, C428S032370, C428S304400, C428S307300, C524S430000, C524S431000, C524S432000, C524S433000, C524S492000, C524S493000
Reexamination Certificate
active
10887376
ABSTRACT:
Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from the nonporous silica colloids. The particles have a median particle size in the range of about 0.05 to about 3 microns and porosity such that when an aqueous dispersion of the particles is dried at least 0.5 cc/g of pore volume is from pores having a pore size of 600 Å or less. The particles also have a viscosity derived pore volume of at least 0.5 cc/g.
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English Translation of DE 19534327 (1996).
Chapman David Monroe
Michos Demetrius
Bunch William D.
Lipman Bernard
W. R. Grace & Co.,-Conn.
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