| 发明名称 |
Sulfam (na) phthaleins |
| 摘要 |
This invention relates to 1-naphthol sulfam(na)phthaleins possessing a carbonyl moiety on the N atom of sulfam(na)phthalein ring, which compounds find utility, for example, as antihalation and filter dyes in photographic products and processes.
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| 申请公布号 |
US4195180(A) |
申请公布日期 |
1980.03.25 |
| 申请号 |
US19770836067 |
申请日期 |
1977.09.23 |
| 申请人 |
POLAROID CORP |
发明人 |
BORROR, ALAN L;CINCOTTA, LOUIS;ELLIS, ERNEST W;FOLEY, JAMES W |
| 分类号 |
C07C43/225;C07D275/06;C07D279/02;C07D309/12;C07D417/10;C07F7/18;G03C1/83;G03C8/48;(IPC1-7):C07D275/06 |
主分类号 |
C07C43/225 |
| 代理机构 |
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代理人 |
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| 地址 |
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