Diamino compounds and their production method

Details Diamino compounds and their production method Diamino compounds and their production method

1993-12-07

1995-01-17

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C21154

Patent

active

053826884

ABSTRACT:
The present invention is to provide diamino compounds useful to polyamide raw materials for production of liquid crystal alignment layers having excellent voltage holding ratios without development of image-sticking phenomena, a method for producing the compounds and liquid crystal display devices equipping the liquid crystal alignment layers.
The Diamino compounds are represented by the general formula (1): ##STR1## wherein R indicates hydrogen or an alkyl group having 1 to 8 carbon atoms, further, X, Y and Z indicate hydrogen, an alkyl group having 1 to 3 carbon atoms or fluorine, respectively, and a part or all of them may be the same or different, and the positions of these substitutive groups may be ortho positions or meta positions.

REFERENCES:
patent: 2883365 (1959-04-01), Mathes
patent: 3247199 (1966-04-01), Marxer et al.
patent: 5008456 (1991-04-01), Murata et al.
Nigorikawa et al, Chemical Abstracts, vol. 110 (1989) 222725u.
Sutyagina et al, Chemical Abstracts, vol. 54 (1959) 12828g.

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