Method of using low profile additives for crosslinkable resins
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 8, 2003
Grant Date -
Apr 4, 2002
app pub date -
Dec 11, 2000
filing date -
Jan 16, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Shrinkage of cured resins is reduced by mixing the crosslinkable resin with a low profile additive (LPA). The LPA is in the form of particles which comprise an SCC polymer (or a similar crystalline polymer which melts over a narrow temperature range). The system is cured at a temperature above the melting point of the crystalline polymer (T.sub.p), and the system and the LPA are such that at least part of the LPA remains as a separate phase in the curable resin at temperatures below T.sub.p. It is believed that at least part of the crystalline polymer remains as a separate phase in the resin as it cures. Preferably at least part of the crystalline polymer forms a separate phase in the cured polymer after it has cooled.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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