Reactive phenolic resin modifier
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 2, 1999
Issued Date -
N/A
app pub date -
May 19, 1993
filing date -
Jun 13, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low molecular weight lignin fraction having a pre-selected molecular weight range prepared from lignin solution by ultrafiltration. The invention also relates to phenol-formaldehyde resin modified by the lignin fraction, adhesive comprising the modified resin, and a method for producing the lignin fraction and the resin.
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