Process for preparing tetraphenoic compounds
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 8, 1992
Grant Date -
N/A
app pub date -
Jun 28, 1991
filing date -
Jun 28, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process is disclosed for preparing a tetrakisphenol by the reaction of a dialdehyde with a phenolic compound in the presence of a cationic exchange resin catalyst, and then subjecting a solution of the condensation product to conditions suitable for crystallization of the polyphenolic product relatively high in the tetrakisphenol species.
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