Additives for extending pot life of 2-component polyurethane coatings
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 9, 2006
app pub date -
Mar 30, 2006
filing date -
May 4, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to an additive system for increasing the pot life of two-component, solvent-borne polyurethane coatings; such polyurethane coatings in combination with the additive; as well as a method for increasing pot life based on using the additive in combination with such coatings. The additive is based on cobalt at from 0.01-0.10% and an organic chelating agent at 0.03-0.5%, all percentages expressed as mass percent of resin solids. Preferred amounts of cobalt are about 0.02-0.04% and preferred amounts of chelating agent are about 0.066-0.15%. As it is more preferred to use the least amount of additive, a more preferred additive composition contains about 0.02% cobalt and about 0.06-0.08% chelating agent. It is also possible to express the components in terms of a ratio, wherein a preferred composition is between about 1:5 to about 1:20 cobalt:chelating agent, with a most preferred composition at about 1:3.8
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