Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1975-07-16
1978-10-03
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528191, 528192, C08G 6318
Patent
active
041183720
ABSTRACT:
This invention relates to a class of synthetic polyesters and copolyesters which display optical anisotrophy in the molten state and to the fibers, films, and other shaped articles obtained from the optically anisotropic melts.
REFERENCES:
patent: 3975487 (1976-08-01), Cottis et al.
E. I. Du Pont de Nemours and Company
Lee Lester L.
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