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US 2010/0163195 A1Published application
High-Yield Paper and Methods of Making Same
AssigneeNorth Pacific Paper Corporation (Norpac)
InventorsMichael J. Dougherty, Amar N. Neogi, David W. Park, Brian S. Delgardno
Life of this patent
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Abstract
A high-yield paper sheet generally includes at least about 50 weight percent mechanical pulp, wherein the basis weight of the sheet is in the range of about 24 to about 60 pounds, and a surface layer on the sheet including nPCC pigment.
Claims18
A high-yield paper sheet, comprising:
- (a) at least about 50 weight percent mechanical pulp, wherein the basis weight of the sheet is in the range of about 24 to about 60 pounds;
- and
- (b) a surface layer on the sheet including nPCC pigment.
A high-yield paper sheet, comprising:
- (a) at least about 50 weight percent mechanical pulp, wherein the basis weight of the sheet is in the range of about 35 to about 55 pounds;
- and
- (b) a surface layer on the sheet including nPCC pigment.
A high-yield paper sheet, comprising:
- (a) at least about 50 weight percent mechanical pulp, wherein the basis weight of the sheet is less than about 45 pounds;
- and
- (b) a surface layer on the sheet including nPCC pigment and binder.
Dependencies are inferred from the claim text.