发明授权
- 专利标题： Carbonyloxy-substituted azulenesquaric acid dyes, intermediates therefor and optical recording medium
- 专利标题（中）： 羰氧基取代的薁磺酸染料，其中间体和光学记录介质
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申请号： US603025申请日： 1990-10-25
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公开(公告)号： US5728867A公开(公告)日： 1998-03-17
- 发明人: Michael Schmitt , Wolfgang Schrott , Peter Neumann , Sibylle Brosius , Klaus Dieter Schomann , Harald Kuppelmaier
- 申请人： Michael Schmitt , Wolfgang Schrott , Peter Neumann , Sibylle Brosius , Klaus Dieter Schomann , Harald Kuppelmaier
- 申请人地址： DEX Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX Ludwigshafen
- 优先权： DEX3935524.1 19891025
- 主分类号： B41M5/26
- IPC分类号： B41M5/26 ; C07C69/007 ; C09B57/00 ; G03C1/72 ; C07C69/52
摘要：
Carbonyloxy-substituted azulenesquaric acid dyes of the formula ##STR1## where L is C.sub.1 -C.sub.12 -alkylene which may be substituted by phenyl,R.sup.1 is C.sub.1 -C.sub.12 -alkyl, monounsaturated or polyunsaturated C.sub.3 -C.sub.12 -alkenyl, which may be phenyl-substituted, C.sub.3 -C.sub.7 -cycloalkyl, C.sub.3 -C.sub.7 -cycloalkenyl, substituted or unsubstituted phenyl, pyrrolyl, furanyl, thienyl or pyridyl and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, with the proviso that when R.sup.3 is hydrogen the positions of the substituents CH.sub.2 --L--O--CO--R.sup.1 and R.sup.4 on either or both azulene rings may also be interchanged with each other within an azulene ring, are useful in an optical recording medium.
公开/授权文献
- US3986001A Sales computer utilizing sensor pairs 公开/授权日：1976-10-12
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