Process for preparing cellulosic fibrous aggregates
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 16, 2001
Grant Date -
N/A
app pub date -
Dec 9, 1997
filing date -
Dec 9, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the preparation of a cellulosic fibrous aggregate, comprising a softening stage, a dewatering stage and a curing stage, whereby in the softening stage a section of cellulosic fibrous material is exposed to the action of a liquid aqueous softening agent at elevated temperature and at a pressure of at least the equilibrium vapor pressure of the softening agent at the operating temperature, and whereby part of the heat required to raise the temperature of the starting material to the operating temperature of the softening stage, is obtained, by heat-exchange contact, from an aqueous stream, the initial temperature of which is substantially equal to the said operating temperature.
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