Ester derivative having a positive dielectric anisotropy

Details Ester derivative having a positive dielectric anisotropy Ester derivative having a positive dielectric anisotropy

1985-09-11

1987-04-21

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonchiral additive having no specified mesophase

25229961, 350350R, 546326, C09K 1954, C09K 1934, G02F 113, C07D21379

Patent

active

046595007

ABSTRACT:
A novel ester derivative affording a positive large dielectric anisotropy value (.DELTA..epsilon.) of liquid crystal compositions and also reducing the optical anisotropy value (.DELTA.n) thereof when the derivative is contained therein, and a liquid crystal composition containing the ester derivative are provided, which ester derivative is expressed by the formula ##STR1## wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms and X represents F or Cl.

REFERENCES:
patent: 4198312 (1980-04-01), Sato et al.
patent: 4455261 (1984-06-01), Sasaki et al.
patent: 4490276 (1984-12-01), Hsu
Pavluchenko, A. I., et al., J. De Physique, Coll C3, Suppl. No. 4, vol. 40, Apr. 1979, pp. C3-1-4.
Dewar, M. J. S., et al., Liquid Crystals and Ordered Fluids, vol. 2, Ed. Johnson, J., et al, Plenum Press, N.Y., pp 733-741 (1980).
Grachev, U. T., et al., Mol. Cryst. Liq. Cryst., vol. 65, pp. 133-144 (1981).

Affiliated with

Also associated with

Rating

Ester derivative having a positive dielectric anisotropy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ester derivative having a positive dielectric anisotropy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ester derivative having a positive dielectric anisotropy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-750266