Title:
【発明の名称】エーテル化フルオレセイン化合物
Document Type and Number:
Japanese Patent JP2776589
Kind Code:
B2
Abstract:
Etherified fluorescein compounds of the general formula (1) in which X1 is alkyl having 4 to 12 carbon atoms or cycloalkyl and X2 is alkyl which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or cycloalkyl, the rings A and B, independently of one another, are unsubstituted or substituted by halogen, lower alkyl or lower alkoxy, and the ring D is unsubstituted or substituted by halogen, nitro, lower alkyl, lower alkoxy, lower alkylthio, lower alkoxycarbonyl, amino, mono-lower alkylamino or di-lower alkylamino, with the exception that X1 and X2 are not at the same time n-butyl. These novel lactone compounds are particularly suitable for use a color formers in pressure-sensitive or heat-sensitive recording materials and they produce intense yellow, orange or rose-pink colorations.
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| JPS6341183 | RECORDING MATERIAL |
Inventors:
BERUNHARUTO UIETOFUERUDO
Application Number:
JP29943989A
Publication Date:
July 16, 1998
Filing Date:
November 17, 1989
Export Citation:
Assignee:
CHIBA SUPESHARUTEI CHEM HOORUDEINGU INC
International Classes:
B41M5/145; B41M5/327; C07D493/10; C09B11/28; (IPC1-7): C09B11/28; B41M5/124; B41M5/145; B41M5/30; C07D493/10
Domestic Patent References:
| JP63251278A | ||||
| JP6294841A |
Attorney, Agent or Firm:
Masao Okabe (11 others)