Refining process for paper pulp using a silica sol
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 6, 1993
Grant Date -
N/A
app pub date -
Jan 31, 1992
filing date -
Jan 31, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A refining process for paper pulp in which colloidal silica sol is mixed with the paper pulp to be refined. The addition of the colloidal silica sol reduces the time necessary to refine the pulp to a predetermined freeness value compared to refining in the absence of the colloidal silica sol.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully