Process for preparation of a recording material comprising a nov

Details Process for preparation of a recording material comprising a nov Process for preparation of a recording material comprising a nov

1993-07-21

1994-04-05

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31188

Patent

active

053006615

ABSTRACT:
Disclosed are novel crystal of the fluoran compound represented by the formula (I) ##STR1## ,characterized by a specific X-ray diffraction diagram; preparation process thereof; and recording materials comprising the crystal.

REFERENCES:
patent: 5185453 (1993-02-01), Nakatsuka et al.

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