2-Phenyl-1,2,3-triazolofluoran compounds

Details 2-Phenyl-1,2,3-triazolofluoran compounds 2-Phenyl-1,2,3-triazolofluoran compounds

1975-10-23

1976-12-07

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

260308B, 260335, 282 275, 427151, 428914, B41L 120

Patent

active

039964060

ABSTRACT:
Disclosed are normally substantially colorless chromogenic 2-phenyl-1,2,3-triazolofluoran color precursor compounds having the following generic structural formula: ##STR1## wherein each R.sub.1 represents either a hydrogen atom or a lower alkyl group having from one to five carbon atoms and wherein R.sub.2 preferably represents either a hydrogen atom, a substituted or unsubstituted lower alkyl group having from one to five carbon atoms or a substituted or unsubstituted phenyl group. These compounds are generally substantially colorless but capable of becoming highly colored when brought into reactive contact with many conventional Lewis acid materials. Accordingly, these compounds are highly useful as a component of pressure-sensitive copying papers.

REFERENCES:
patent: 3501331 (1970-03-01), Kimura et al.
patent: 3642514 (1972-02-01), Orita et al.
patent: 3669711 (1972-06-01), Kimura et al.

Affiliated with

Also associated with

Rating

2-Phenyl-1,2,3-triazolofluoran compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with 2-Phenyl-1,2,3-triazolofluoran compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 2-Phenyl-1,2,3-triazolofluoran compounds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-380485