Method for deinking wastepaper using alkoxy capped polyethylene oxide and a polymeric material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 7, 1992
Issued Date -
N/A
app pub date -
May 14, 1991
filing date -
Oct 16, 1986
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a method of removing ink from secondary fiber by contacting a pulp of said secondary fiber with an aqueous medium in the presence of a polymeric material having a glass transition temperature in the range of from about 20.degree. C. to about 70.degree. C. and a substituted polyethylene oxide to agglomerate the ink into discrete masses and separating the agglomerated ink from the pulp-containing aqueous medium.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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