Stock material or miscellaneous articles – Ink jet stock for printing – Paper support composition specified
Reexamination Certificate
2005-03-01
2005-03-01
Shewareged, B. (Department: 1774)
Stock material or miscellaneous articles
Ink jet stock for printing
Paper support composition specified
C428S032350, C428S032370, C524S492000, C524S493000
Reexamination Certificate
active
06861112
ABSTRACT:
The invention provides an aqueous dispersion comprising fumed silica particles, colloidal silica particles, and water. The fumed silica particles have a BET surface area of about 70 to about 140 m2/g, and the colloidal silica particles have a BET surface area of about 110 to about 150 m2/g. Also, the total amount of silica in the dispersion is about 35% to about 60% by weight, and the fumed silica particles comprise about 25% to about 80% by weight of the total amount of silica in the dispersion. The invention also provides a coating composition and a recording medium incorporating the inventive dispersion.
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Brown Steven E.
Liu Joanne
Morris Michael D.
Cabot Corporation
Shewareged B.
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