Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1992-03-11
1993-06-08
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
524600, 524606, 528183, 528184, 528189, 528206, 528208, 528210, 528321, 528327, 528337, 528350, C08G 7322
Patent
active
052180760
ABSTRACT:
The invention is a process for making novel branched polybenzazole polymers and the polymers formed thereby. Novel compounds are also disclosed that are useful as branching agents in making the branched polybenzazole polymers. The branched polymers synthesized by the process can be formed into strong, light articles such as fibers and films.
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Harris William J.
Madison Norman L.
Anderson Harold D.
The Dow Chemical Company
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