Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1997-03-31
1999-08-17
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 99, 528362, 525481, 525482, 525504, 525534, C08G 5900, C08G 6508, C08G 6514, C08G 6344
Patent
active
059395087
ABSTRACT:
A copolymer is formed from reacting, within a melt, a phthalonitrile resin with an epoxy resin having at least three epoxy groups. In an alternative embodiment, a copolymer is formed by reacting a phthalonitrile resin with an epoxy resin, at least one of the epoxy and phthalonitrile resins having a perfluorinated carbon. The copolymers of the present invention have exceptional thermal stability and a low affinity for water.
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Edelberg Barry A.
Krass Frederick
McDonnell Thomas E.
The United States of America as represented by the Secretary of
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