| 发明名称 |
Photochromic system and layers produced therewith |
| 摘要 |
A photochromic system contains an oxidizable leuco dye and a photochemically activated initiator which converts the leuco dye to the dye, the initiator being a phenanthroimidazole derivative. The photochromic system is useful for the production of photochromic layers for photoresists and printing plates.
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| 申请公布号 |
US4857438(A) |
申请公布日期 |
1989.08.15 |
| 申请号 |
US19870028587 |
申请日期 |
1987.03.20 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
LOERZER, THOMAS;LEYRER, REINHOLD J. |
| 分类号 |
G03F7/004;G03C1/72;G03C1/73;G03F7/105 |
主分类号 |
G03F7/004 |
| 代理机构 |
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