Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1992-07-17
1993-09-21
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...
503214, 503216, 503225, B41M 530
Patent
active
052469069
ABSTRACT:
A thermosensitive recording material capable of recording thereon colored images having high resistances to oily substances, plasticizers, moisture, and heat and an excellent storage persistency over 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, and a binder, the color developing agent comprising at least one compound of the formula (I): ##STR1## wherein X is an O or S atom, R.sup.1 is an unsaturated aromatic group or a substituted phenyl group having a lower alkyl or halogen atom and R.sup.2 and R.sup.3 are respectively a hydrogen atom, alkyl, aralkyl, substituted alkyl having an aryloxy, unsubstituted aromatic group, or substituted aromatic group having at least one substituent selected from alkyl, aryl, aralkyl, alkyloxy, alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl, and arylsulfonyl groups, and halogen atoms.
REFERENCES:
patent: 3539375 (1979-11-01), Baum
patent: 4531139 (1985-07-01), Seitz
Patent Abstracts of Japan, vol. 10, No. 176 (M-491)(2232) Jun. 20, 1986 & JP-A-61 027 287 (Ricoh Co Ltd) Feb. 6, 1986.
Patent Abstracts of Japan, vol. 5, No. 174 (M-96)(846) Nov. 10, 1981 & JP-A-56 099 695 (Ricoh K.K.) Aug. 11, 1981.
Iwasaki Akiko
Takahashi Yoshiyuki
Toyofuku Kunitaka
Oji Paper Co. Ltd.
Schwartz Pamela R.
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