Gelling agent and production method thereof

Details Gelling agent and production method thereof Gelling agent and production method thereof

2006-03-14

2006-03-14

Wu, Shean C. (Department: 1756)

Compositions

Liquid crystal compositions

Containing nonchiral additive having no specified mesophase

C252S299010, C428S001500, C548S440000, C548S441000, C548S444000

Reexamination Certificate

active

07011769

ABSTRACT:
Disclosed herein are a gelling agent composed of an isoleucine derivative having a carbazolyl group, and a process for preparing a gelling agent, which comprises reacting an isoleucine derivative having a specific skeletal with a compound having a carbazolyl group in the presence of dichloromethane and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride to obtain an isoleucine derivative having a carbazolyl group.

REFERENCES:
patent: 5464746 (1995-11-01), Fino
N. Mizoshita, et al., Chem. Commun., pp. 781-782, “Smectic Liquid-Crystalline Physical Gels. Anisotropic Self-Aggregation of Hydrogen-Bonded Molecules in Layered Structures”, 1999.
N. Mizoshita, et al., J. Mater. Chem., vol. 12, pp. 2197-2201, “Electrooptical Properties of Liquid-Crystalline Physical Gels: A New Oligo(Amino Acid) Gelator for Light Scattering Display Materials”, 2002.
K. Hanabusa, et al., Chem. Mater., vol. 11, pp. 649-655, “Easy Preparation and Useful Character of Organogel Electrolytes Based on Low Molecular Weight Gelator”, 1999.

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