Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1988-06-28
1989-07-04
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, C07C 6976
Patent
active
048451843
ABSTRACT:
Liquid crystalline polyesters are provided having chemically combined 4,4'-bis(p-carboxyphenoxy)biphenyl, or 4,4'-bis(p-carboxyphenoxy)diphenylether units. These dicarboxyphenylether spacers can be obtained from the nitro displacement of alkyl nitrobenzene with the appropriate bisphenol.
REFERENCES:
patent: 3873593 (1975-03-01), Heath et al.
patent: 3991014 (1976-11-01), Kleinschuster
patent: 4265802 (1981-05-01), Choe
Langer Matthew E.
Schissel David N.
Yeager Gary W.
Anderson Harold D.
Davis Jr. James C.
General Electric Company
Mason T.
Pittman William H.
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