Substituted birefringent polyhydrazide

Details Substituted birefringent polyhydrazide Substituted birefringent polyhydrazide

1983-04-20

1984-07-24

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528205, 528206, 528208, C08G 7308

Patent

active

044618883

ABSTRACT:
A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals.
Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly berefringent polymers are suited to applicaiton in optical filter and other devices where a refractive and birefringent material is desired.

REFERENCES:
patent: 3130182 (1964-04-01), Frazer

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