发明授权
- 专利标题： Mixed carbonate ester derivatives of quinophthalone dyes and their preparation
- 专利标题（中）： 喹酞酮染料的混合碳酸酯衍生物及其制备
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申请号： US548223申请日： 1990-06-29
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公开(公告)号： US5243052A公开(公告)日： 1993-09-07
- 发明人: Lloyd D. Taylor , David P. Waller
- 申请人： Lloyd D. Taylor , David P. Waller
- 申请人地址： MA Cambridge
- 专利权人： Polaroid Corporation
- 当前专利权人： Polaroid Corporation
- 当前专利权人地址： MA Cambridge
- 主分类号： B41M5/323
- IPC分类号： B41M5/323 ; C07D215/14 ; C07D215/20 ; C07D409/04 ; C09B25/00
摘要：
A mixed carbonate ester of a quinophthalone dye and a tertiary alkanol containing not more than about 9 carbon atoms, preferably a compound of the formula: ##STR1## wherein X is a sulfur atom or a carbonyl group; each Y independently is a hydrogen atom, a halogen atom, a --CO--OR.sup.4 or a --CO--NHR.sup.4 group, wherein R.sup.4 is an alkyl group containing not more than about 10 carbon atoms; R is a hydrogen atom or an --O--C(.dbd.O)--O--CR.sup.5 R.sup.6 R.sup.7 group; and R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6 and R.sup.7 are each an alkyl group, subject to the proviso that R.sup.1, R.sup.2 and R.sup.3 together contain a total of not more than about 8 carbon atoms, and R.sup.5, R.sup.6 and R.sup.7 together contain a total of not more than about 8 carbon atoms.
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