发明名称 |
Oxoindolizine and oxoindolizinium compounds useful as dyes |
摘要 |
Oxoindolizine and oxoindolizinium dyes are novel compounds useful in imaging, such as laser recording and reading. These dyes are formed by (1) the reaction of a cyclopropenone and a pyridine compound, (2) by reaction of (a) color-forming couplers with (b) reaction products from the reaction of cyclopropenones with pyridine compounds, or (3) by condensation reactions of indolizinols, indolizinones, and indolizinium ions.
|
申请公布号 |
US4577024(A) |
申请公布日期 |
1986.03.18 |
申请号 |
US19820412444 |
申请日期 |
1982.08.27 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
FLETCHER, JR., GEORGE L.;BENDER, STEVEN L.;WADSWORTH, DONALD H. |
分类号 |
C07D471/04;C09B23/00;C09B57/00;C09B69/06;G03C1/73;(IPC1-7):C07D471/04 |
主分类号 |
C07D471/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|