发明名称 |
NOVEL OXACHALCOGENAZOLE DYES, PROCESSES FOR THEIR PREPARATION, AND ARTICLES CONTAINING THESE DYES |
摘要 |
Methine dyes are disclosed which contain a 2-halo or pseudohalo substituted 1,2,5-oxatellurazole ring fused with an aromatic nucleus, the aromatic nucleus being substituted with a methine linkage terminating in an auxochrome providing a conjugated resonance chromophore. The dyes can be formed by condensing a methine linkage precursor with a compound containing an oxatellurazole ring fused with an aromatic nucleus. The dyes are useful in optical recording elements and in photographic elements. |
申请公布号 |
DE3662905(D1) |
申请公布日期 |
1989.05.24 |
申请号 |
DE19863662905 |
申请日期 |
1986.02.19 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
GUNTHER, WOLFGANG HANS HEINRICH |
分类号 |
C09B23/00;C09B23/02;C09B23/10;G03C1/36;G03C1/825;G03C1/83;G11B7/247;G11B7/249;(IPC1-7):C09B23/00;G03C1/12 |
主分类号 |
C09B23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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