Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1989-02-01
1990-06-26
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
5282953, 528332, 528501, C08G 6302
Patent
active
049373200
ABSTRACT:
The invention provides a dimerized fatty acid with a content of dicarboxylic acid of at least 97.5 wt. %, preferably at least 98.5 wt. %.
Also provided is a process for the preparation of a pure dimerized fatty acid in which a fatty acid that has been dimerized is freed, by a physical method, of fractions having predominantly monocarboxyic acids and tricarboxylic acids.
The invention further provides a high molecular weight polymer which contains groups derived from a C.sub.4 -C.sub.12 dicarboxylic acid and approximately equimolar amounts of dicarboxylic acids and diamines and/or diols which are converted while volatile reaction products are removed.
REFERENCES:
patent: 2793219 (1957-05-01), Barrett et al.
patent: 2955121 (1960-10-01), Myers et al.
patent: 2964545 (1960-12-01), Harrison
patent: 3900436 (1975-08-01), Drawert et al.
patent: 4045389 (1977-08-01), Drawert et al.
patent: 4396759 (1983-08-01), Drawert et al.
patent: 4397991 (1983-08-01), Drawert et al.
patent: 4480086 (1984-10-01), O'Neill
Haase Klaus D.
Vreeswijk Johannes J.
Alquah S. A.
Foelak Morton
Unilever Patent Holdings B.V.
LandOfFree
Dimerized fatty acid having a high content of dicarboxylic acid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dimerized fatty acid having a high content of dicarboxylic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dimerized fatty acid having a high content of dicarboxylic acid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1126402