Pressure-sensitive or heat-sensitive recording material

Details Pressure-sensitive or heat-sensitive recording material Pressure-sensitive or heat-sensitive recording material

1976-09-09

1977-05-24

Herbert, Jr., Thomas J.

Textiles: manufacturing

260240A, 2602404, 2602407, 427151, 428323, 428411, 428913, 428914, B41M 522

Patent

active

040250903

ABSTRACT:
A pressure-sensitive or heat-sensitive recording material which contains as color former at least one tetrahydroquinoline compound of the general formula ##STR1## wherein EACH OF R.sub.1 and R.sub.2 represents lower alkyl, cycloalkyl or benzyl or together represent alkylene, and

REFERENCES:
patent: 3449335 (1969-06-01), Copeland

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