Process for the preparation of polymers from polymer slurries
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 4, 2007
Grant Date -
Aug 17, 2006
app pub date -
Feb 12, 2005
filing date -
Feb 12, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for manufacturing a polymer having a molecular weight in excess of 5,000, and preferably in excess of 40,000, comprises, producing a polymerized reaction mass in which the polymer is dispersed, the reaction mass including solvent(s), unreacted monomer and other unwanted contaminants; feeding the reaction mass to a means for disentangling the polymer's molecules to produce a modified polymer in the reaction mass; feeding the modified polymer in the reaction mass to a polymer-recovering means; removing the unwanted volatiles and other byproducts; and, recovering a high molecular weight substantially pure modified polymer having substantially the same molecular weight as the polymer fed to the disentangling means and a viscosity at least 10% lower than that of the polymer fed to the disentangling means.
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