Multilayer polishing pads made by the methods for centrifugal casting of polymer polish pads
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 28, 2020
Grant Date -
Sep 25, 2014
app pub date -
Jun 5, 2014
filing date -
Apr 2, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for making a multilayer polishing pad includes rotating a cylinder about a central axis. The cylinder encloses in an interior space a single polymer mixture that phase separates under centrifugal force. The method also includes forming the polishing pad from at least some of a polymer formed after the polymer mixture has reacted. The method includes forming at least two distinct layers in the polishing pad by casting and gelling sequentially at least two different polymers.
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