Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1985-01-04
1985-08-20
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528191, 528194, 528271, C08G 6360
Patent
active
045365628
ABSTRACT:
Disclosed are liquid crystal copolyesters prepared from p-hydroxybenzoic acid, isophthalic and/or terephthalic acid, hydroquinone, and a mono-substituted hydroquinone wherein the substituent is selected from the group consisting of alkyls of 1 to 6 carbon atoms, phenyl and phenyl substituted with an alkyl of 1 to 6 carbon atoms, chloro, bromo, cyano, formyl, acetyl, and trifluoromethyl, wherein, when a specific amount of the hydroquinone is replaced by a specific substituted hydroquinone, the copolyester not only becomes more tractable but also unexpectedly more crystalline when compared to the unsubstituted copolyester.
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Blance R. B.
Farrington W. J.
Lee Lester L.
Matukaitis P. D.
Monsanto Company
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