Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2005-05-03
2005-05-03
Fortuna, José A. (Department: 1731)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S158000, C162S206000, C162S150000, C162S181800, C162S181400, C162S181600
Reexamination Certificate
active
06887351
ABSTRACT:
The invention relates to a process for regulating the porosity and printing properties of paper, in particular uncoated wood-containing paper such as SC-paper, wherein a sufficient quantity of colloidal PCC having a BET surface area of 10-100 m2/g is used as a filter in the paper to achieve a desired porosity of the paper; as well as paper containing colloidal PCC as filler, and a pigment mixture suitable for paper manufacture and containing colloidal PCC.
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Attrup Ib
Lunden Klaus Akilles
Madsen Jens Toftelund
Birch & Stewart Kolasch & Birch, LLP
Fortuna Jos'e A.
J. M. Huber Denmark ApS
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