| 发明名称 |
Spiro-pyranic compounds endowed with photochromic characteristics |
| 摘要 |
Photochromic compounds belonging to the class of spiro-pyrans, having the general formula (I): <IMAGE> (I)
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| 申请公布号 |
US5532361(A) |
申请公布日期 |
1996.07.02 |
| 申请号 |
US19940241759 |
申请日期 |
1994.05.12 |
| 申请人 |
MINISTERO DELL 'UNIVERSITA' E DELLA RICERCA SCIENTIFICA E TECHNOLOGICA |
发明人 |
ALLEGRINI, PIETRO;NODARI, NEREO;MALATESTA, VINCENZO;CRISCI, LUCIANA |
| 分类号 |
C07D311/96;C08K5/1545;C09K9/02;G03C1/685;(IPC1-7):C07D413/08;C07D491/107;C07D405/08 |
主分类号 |
C07D311/96 |
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