发明授权
- 专利标题： Photographic recording material
- 专利标题（中）： 摄影记录材料
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申请号： US671992申请日： 1991-03-18
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公开(公告)号： US5134061A公开(公告)日： 1992-07-28
- 发明人: Erich Wolff
- 申请人： Erich Wolff
- 申请人地址： DEX Leverkusen
- 专利权人： Agfa Gevaert Aktiengesellschaft
- 当前专利权人： Agfa Gevaert Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3840619 19881202
- 主分类号： G03C1/06
- IPC分类号： G03C1/06 ; C07C235/66 ; C07D233/90 ; G03C1/43 ; G03C7/305 ; G03C7/32 ; G03C7/388 ; G03C7/392
摘要：
Photographically useful organic compounds containing secondary-branched alkyl radicals with at least 15 C atoms corresponding to formula I have a low melting point, good solubility in oil formers and a low tendency towards crystallization which makes them particularly suitable for photographic applications. ##STR1## In formula I: PNOV is the residue of a photographically useful organic compound, for example a coupler or oil former;L is a chemical bond or a link between PNOV and X;X represents --O--, --S--, --SO--, --SO.sub.2 --, --NH--, --NR-- (R.dbd.alkyl or acyl), --CO-- or alkylidene;R.sup.1 and R.sup.2 are unbranched alkyl radicals containing at least 6 C atoms, with the proviso that R.sup.1 and R.sup.2 together contain at least 14 C atoms and, where X represents --CO-- or --CH.sub.2, at least 17 C atoms.
公开/授权文献
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