Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified solvent or dispersant for color-former – other...
Patent
1987-09-30
1989-08-22
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Identified solvent or dispersant for color-former, other...
427150, 427151, 428 16, 428 17, 428914, 503215, 503224, B41M 516, B41M 522
Patent
active
048596507
ABSTRACT:
A pressure-sensitive recording material is disclosed, having microcapsules containing a triphenylmethane leuco-dye dissolved in a solvent composed at least 80% of plant, animal or paraffin oils, the microcapsule walls being formed of a wall material which is water-soluble or water-dispersible before the formation of the microcapsules. Preferably, the color former is of the formula ##STR1##
REFERENCES:
patent: 3871900 (1975-03-01), Hayashi et al.
patent: 4398753 (1983-08-01), Asano et al.
patent: 4460199 (1984-07-01), Hosoi et al.
patent: 4580153 (1986-04-01), Kondo et al.
Hilterhaus Bodo
Hunger Gunther
Feldmuhle Aktiengesellschaft
Hess Bruce H.
Striker Michael J.
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