Nematic liquid crystal mixtures with stable homeotropic boundary

Details Nematic liquid crystal mixtures with stable homeotropic boundary Nematic liquid crystal mixtures with stable homeotropic boundary

1974-01-07

1976-08-03

Padgett, Benjamin R.

Compositions

Radioactive compositions

Nuclear reactor fuel

252299, 252408, 350150, C09K 334, G02F 113

Patent

active

039725898

ABSTRACT:
Nematic liquid crystal mixtures characterized by a homeotropic boundary condition are prepared by the addition of soluble monopolar compounds to either positive or negative dielectric anisotropic nematic materials. Between approximately 0.5 and 5 percent by weight of compounds such as certain carboxylic acids, aliphatic amines and aliphatic nitriles, for example, when dissolved in a nematic material produce spontaneous homeotropic boundary conditions therein.

REFERENCES:
patent: 3694053 (1972-09-01), Kahn
patent: 3697150 (1972-10-01), Wysocki
patent: 3803050 (1974-04-01), Haas et al.
patent: 3809456 (1974-05-01), Goldmacher et al.
patent: 3838059 (1974-09-01), Wong
patent: 3848966 (1974-11-01), Smith et al.
"Surface Active Agents and Detergents", vol. II., Schwartz, A., Perry, J. & Berch, J., Interscience Pubs, Inc., N.Y. pp. 103-104 (1958).

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