Raw material for printing paper, method to produce it and printing paper
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 16, 2004
Grant Date -
Jan 9, 2003
app pub date -
Jun 7, 2002
filing date -
Dec 9, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The object of the present invention is a method for making mechanical pulp, such as thermomechanical or chemi-thermomechanical stock. The mechanical pulp is utilised as a raw material for printing paper, and its freeness value is 30--70 ml CSF. According to the method, the refined stock is screened in several stages into accept and reject stock portions. The stock is screened at a consistency of not less than 10%.
First Claim
Family
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