Rigid polyurethane foams and method to form said foams using low molecular weight diols and triols
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 9, 2003
Grant Date -
N/A
app pub date -
Apr 22, 1998
filing date -
Apr 22, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is a polyurethane foam comprising the reaction product of a first reactant comprised of a polyisocyanate having an average isocyanate functionality of at least 2 and a second reactant comprised of a low molecular weight compound that has at least two to, at most, three groups containing an active hydrogen and water, wherein the reaction product is formed essentially in the absence of a cross-linking polyol and the polyurethane foam is substantially rigid. The invention is also a method of forming the polyurethane foam by contacting the first and second reactant for a time and temperature sufficient to form the foam.
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