Polymer foam plank with densified skin, method and apparatus for producing a densified skin on a foam plank
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 6, 2004
Issued Date -
N/A
app pub date -
Feb 3, 2000
filing date -
Feb 3, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer surface to form the densified skin having a density greater than a density of the foam before the heating step. Additionally, the method and apparatus may further include extruding the polymer foam from an extruder.
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