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Primary Examiner: Padgett, Benjamin R.
Assistant Examiner: Gron, T. S.
Attorney: Fitzpatrick, Cella, Harper & Scinto

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Title: Liquid crystalline composition

Abstract: A liquid crystalline composition comprises at least one kind of biphenyl type liquid crystal materials having the positive dielectric anisotropy and at least one kind of other liquid crystal materials. The novel liquid crystalline composition of the present invention possesses extended ranges of the nematic mesomorphic temperature which are significantly larger than those of the individual liquid crystal material of the composition and are stable at a room temperature.

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Inventors: Matsufuji, Yoji (Tokyo, JP)

Application Number: 543431
Filing Date: 1975-01-23
Publication_date: 1979-01-30
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Class(es): 252/299.5 252/299.64, 252/299.66, 252/299.67, 252/299.68, 349/186
Other Classes:
US Patent Ref:

3815972	Jun, 1974	Hsieh	252/299.
3836478	Sep, 1974	Green et al.	252/299.
3891307	Jun, 1975	Tsukamoto et al.	350/160.
3952046	Apr, 1976	Scherrer et al.	252/299.
3953491	Apr, 1976	Steinstrasser et al.	252/299.
3954653	May, 1976	Yamazaki	252/299.
4011173	Mar, 1977	Steinstrasser	252/299.
4020002	Apr, 1977	Oh	252/299.
4043935	Aug, 1977	Kanbe	252/299.
4046708	Sep, 1977	Dubois	252/299.
4083797	Apr, 1978	Oh	252/299.

Other Refs: 8071652024269213962823067382306739232163225227222538865225213250-23385

Nov, 1973	BE
Dec, 1971	DE
Feb, 1973	DE
Aug, 1973	DE
Aug, 1973	DE
Nov, 1974	DE
Feb, 1976	DE
Mar, 1976	DE
Jun, 1975	FR
Mar, 1975	JP

Other References: Gray, G. W., et al., Electronics Letters, vol. 9, No. 6, pp. 130-131 (Mar. 1973).
Oh, Chan S., Mol. Cryst. Liq. Cryst., vol. 42, pp. 1-14, (1977).