Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified organic electron acceptor other than phenolic resin
Patent
1992-07-22
1994-01-25
Schwartz, Pamela R.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Identified organic electron acceptor other than phenolic resin
4284022, 503201, B41M 528
Patent
active
052815706
ABSTRACT:
A reversible thermochromic material, preferably in the form of a microcapsule, comprising:
REFERENCES:
patent: 2324671 (1943-07-01), Bernstein
patent: 3560229 (1971-02-01), Farnham et al.
patent: 4028118 (1977-06-01), Nakasuji et al.
Hasegawa Kiyoharu
Kikkawa Kazuyoshi
Nakatsuka Masakatsu
Tanabe Yoshimitsu
Yamaguchi Akihiro
Mitsui Toatsu Chemicals Incorporated
Schwartz Pamela R.
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