Colorant for use in business recording

Details Colorant for use in business recording Colorant for use in business recording

1994-09-20

1995-09-26

Raymond, Richard L.

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

Organic compounds

Acyclic carbon bonded directly to three benzene rings or to...

562125, 564315, 564330, C07C21154

Patent

active

054535220

ABSTRACT:
Bis-substituted methanes and undissociated methylene salts of the formula (Am).sub.2 Z wherein Am is bis-(1,4 dimethylaminophenyl) and Z is CH.sub.2 or CH.sup.+ X.sup.- wherein X.sup.- is a suitable anion, all useful in the production of deeply colored cations of the formula (Am).sub.2 CH.sup.+. These deeply colored cations are in turn useful in making and using carbonless copy papers, as well as thermal copying papers for use with fax machines.

REFERENCES:
patent: Re30797 (1981-11-01), Davis
patent: Re30803 (1981-11-01), Davis
patent: 3193404 (1965-07-01), Davis
patent: 4321207 (1982-03-01), Cesark
patent: 4632987 (1986-12-01), Tsujimoto et al.
District Court, D. Delaware; Scott Paper Company et al. v. Moore Business Forms, Inc. No. 77-199-JLL, Decided Sep. 5, 1984.

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