Chromogenic fluoran derivatives and the preparation and use ther

Details Chromogenic fluoran derivatives and the preparation and use ther Chromogenic fluoran derivatives and the preparation and use ther

1974-05-21

1976-05-25

Willis, Jr., P.E.

Stock material or miscellaneous articles

Composite

Of carbohydrate

260243B, 2602472R, 26029358, 2603263, 260335, 2603433R, 282 275, 427151, B41M 522

Patent

active

039595714

ABSTRACT:
A recording material which is suitable as a pressure-sensitive or heat-sensitive copying paper or recording paper by developing a color in contact with an electron-accepting material which comprises certain fluoran derivatives containing piperidino, pyrrolidino, morpholino and cycohexylamino groups.

REFERENCES:
patent: 3514311 (1970-05-01), Katayama et al.
patent: 3649649 (1972-03-01), Orita et al.
patent: 3669712 (1972-06-01), Kimura et al.
patent: 3725416 (1973-04-01), Yamamoto et al.
patent: 3837889 (1974-09-01), Hughes et al.
patent: 3839361 (1974-10-01), Terayama et al.

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