Thermal measuring and testing – Temperature measurement – Composite temperature-related paramenter
Patent
1981-03-27
1984-10-30
Gron, Teddy S.
Thermal measuring and testing
Temperature measurement
Composite temperature-related paramenter
374161, 374162, 25229964, 25229965, 25229967, 2522997, 560 1, 560 59, 560 62, 560 64, 560 65, 560 66, 560 73, 560102, 560106, 560107, 560108, 560111, G02F 113, C09K 334, G01K 1116, C07C 6974, C07C 6978, C07C 6963, C07C 6965, C07C 6990
Patent
active
RE0317152
ABSTRACT:
Novel liquid crystal compounds are disclosed, which are chiral esters based upon the phenol ##STR1## Typical examples are: ##STR2## and mixtures of these compounds have a helical pitch such that the mixtures reflect light of a specific wavelength when illuminated with ordinary light and the pitch is temperature sensitive so that the mixtures can be used in temperature indicating devices. Specific examples are given as are samples of mixtures that can be used in phase change electro-optic display devices.
REFERENCES:
patent: 3891307 (1975-06-01), Tsukamoto et al.
patent: 3915883 (1975-10-01), Van Meter et al.
patent: 3947375 (1976-03-01), Gray et al.
patent: 4002670 (1977-11-01), Steinstrasser
patent: 4065489 (1977-12-01), Steinstrasser et al.
patent: 4077260 (1978-03-01), Gray et al.
patent: 4082428 (1978-04-01), Hsu
patent: 4083797 (1978-04-01), Oh
patent: 4105654 (1978-08-01), Bloom et al.
patent: 4149413 (1979-04-01), Gray et al.
Gray, G. W., et al., Abstracts of the 6th Int. Liq. Cryst. Conf., Kent, Ohio, I-2, Aug. 23-27 (1976).
Klanderman, B. H. et al., JACS, vol. 97, No. 6, pp. 1585-1586 (1975).
Gray, G. W. et al., Mol. Cryst. Liq. Cryst., vol. 37, pp. 189-211 (1976).
Goodby, J. W. et al., Mol. Cryst. Liq. Cryst. (Lett.), vol. 34, pp. 183-188 (1977).
Gray, G. W. et al., Mol. Cryst. Liq. Cryst. (Lett.), vol. 34, pp. 211-217 (1977).
Goodby, J. W. et al., Abstract I-6, 6th Int. L. C. Conf., Kent, Ohio (1976).
Coates David
Gray George W.
McDonnell Damien G.
Gron Teddy S.
The Secretary of State for Defence in Her Britannic Majesty's Go
LandOfFree
Liquid crystal compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystal compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal compounds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1096766