Conversion of sticky elastomeric polymer crumb into pellets without polymer degradation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 1, 2002
Grant Date -
N/A
app pub date -
May 6, 1999
filing date -
May 27, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for pelletizing elastomeric anionically polymerized polymers which comprises subjecting the polymer to solid state extrusion in a single screw extruder with a length to diameter ratio of 10:1 or less wherein the barrel of the extruder has longitudinal grooves and transversally extending pins to increase mixing wherein the temperature in the extruder is sufficient to agglomerate or melt the polymer but be lower than the degradation temperature of the polymer and the speed of the extruder screw is from 30 to 100 rpm.
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