Cross-linked urea-formaldehyde polymer matrix compositions containing cyclic intermediate structures
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 31, 1984
Grant Date -
N/A
app pub date -
May 17, 1982
filing date -
May 17, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cross-linked urea-formaldehyde polymer matrix is formed by catalyzing, using a buffered acid as the catalyst, an aqueous mixture of a urea-formaldehyde concentrate, urea-formaldehyde resin, and powdered urea. The resulting thermoset polymer which possesses, in part, a cyclic structure, is of unusual hardness and has utility, with or without fillers, as a molding or casting material possessing controllable shrinkage characteristics because of uniform molecular structure and formula versatility.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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