Process for the production of paper
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United States of America Patent
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Jul 7, 1992
Grant Date -
N/A
app pub date -
Jan 24, 1989
filing date -
May 25, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the production of paper by forming and dewatering a suspension of cellulose containing fibres, and optional fillers, on a wire. The forming and dewatering is carried out in the presence of a combination of an aluminum compound, a cationic retention agent and a polymeric silicic acid having a high specific surface area. The combination of substances improves dewatering and retention of fines and fillers.
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