Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1992-05-05
1994-03-08
Schwartz, Pamela R.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonchromogenic liquid spread-control or...
503216, 503225, B41M 532
Patent
active
052927113
ABSTRACT:
A thermosensitive recording material, capable of providing colored images having a high resistance to oily substances and plasticizers and an excellent storage persistency for a long time, comprises a thermosensitive colored image-forming layer formed on a sheet substrate and comprising a colorless dye precursor, a color developing agent, a colored image-stabilizing agent comprising an aziridinyl compound and/or an epoxy compound, and an additional colored image-stabilizing agent comprising a primary or secondary amine compound and/or a carboxylic compound having a carboxyl group or --CO--O--CO-- group; the color developing agent preferably comprising a compound of the formula (I): ##STR1## wherein X is an O or S atom, R.sub.1 is an unsubstituted aromatic group, or a substituted phenyl group having a lower alkyl or a halogen atom, and R.sub.2 and R.sub.3 are respectively a hydrogen atom, or alkyl group, aryl groups, substituted alkyl group with an aryloxy group, or a substituted aromatic group having an alkyl, aryl, aralkyl, alkyloxy, alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or arylsulfonyl group or a halogen atom.
REFERENCES:
patent: 3859112 (1975-01-01), Kohmura et al.
patent: 3936309 (1976-02-01), Kohmura et al.
World Patents Index Latest, Week 8525, Derwent Publications Ltd., London, GB, JP-A-60 083 884, May 13, 1985 (Abstract).
World Patents Index Latest, Week 8550, Derwent Publications Ltd., London, GB, JP-A-60 220 787, Nov. 5, 1985 (Abstract).
World Patents Index Latest, Week 9101, Derwent Publications Ltd., London, GB, JP-A-2 281 991, Nov. 19, 1990 (Abstract).
W. Gerhartz et al, Ullmann's Encyclopedia of Industrial Chemistry, 1987, 5th edition, vol. A9: "Epoxy Resins", pp. 554-556.
Nishimura Masaki
Takahashi Yoshiyuki
Toyofuku Kunitaka
Oji Paper Co. Ltd.
Schwartz Pamela R.
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