Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1981-12-21
1983-08-09
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528179, 528180, 528181, 528191, 528193, 528194, C08G 6364
Patent
active
043980180
ABSTRACT:
A thermotropic poly(ester carbonate) containing diacyl moieties such as terephthalate and carbonate moieties as well as dihydroxy-derived moieties is useful for forming fibers or films. The dihydroxy-derived moieties are at least 40% derived from t-butylhydroquinone, with hydroquinone and methylhydroquinone being exemplary second components. The polymers can be prepared by melt, solution or interfacial polymerization, are liquid crystalline in the melt and have glass transition temperatures above 100.degree. C.
REFERENCES:
patent: 4107143 (1978-08-01), Inata et al.
patent: 4238600 (1980-12-01), Jackson, Jr. et al.
patent: 4284757 (1981-08-01), Fayolle
Akkapeddi Murali K.
DeBona Bruce T.
Lai Yu-Chin
Prevorsek Dusan C.
Allied Corporation
Doernberg Alan M.
Fuchs Gerhard H,.
Lee Lester L.
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