Lyotropic birefringent films

Details Lyotropic birefringent films Lyotropic birefringent films

1976-04-16

1977-06-21

Bauer, Edward S.

Compositions

Radioactive compositions

Nuclear reactor fuel

252299, 350160LC, 427168, 428 1, G02F 113

Patent

active

040308120

ABSTRACT:
Cyanuric halide is successively reacted with two moles of carboxy substituted aromatic amine and one mole of quaternizing agent such as pyridine and dissolved, e.g., in dilute ammonium hydroxide. At certain concentrations as the solution evaporates, it becomes nematic. The solution is evaporated on an oriented substrate so that the residue is anisotropic and is finally frozen in a resinous form which shows birefringence. The substrate and coating is valuable as a fractional wave plate.

REFERENCES:
patent: 2400877 (1946-05-01), Dreyer
patent: 2481830 (1949-09-01), Dreyer
patent: 2524286 (1950-10-01), Dreyer
patent: 2544659 (1951-03-01), Dreyer
patent: 3322485 (1967-05-01), Williams
patent: 3690745 (1972-09-01), Jones

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