发明授权
- 专利标题: Optical recording medium containing an azulenium dye
- 专利标题(中): 含有薁染料的光学记录介质
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申请号: US147909申请日: 1988-01-25
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公开(公告)号: US4904566A公开(公告)日: 1990-02-27
- 发明人: Wolfgang Schrott , Bernhard Albert , Peter Neumann , Heidi Benthack-Thoms
- 申请人: Wolfgang Schrott , Bernhard Albert , Peter Neumann , Heidi Benthack-Thoms
- 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: DEX3703985 19870210
- 主分类号: B41M5/26
- IPC分类号: B41M5/26 ; C09B57/00 ; G01D9/00 ; G03C1/72 ; G03C1/74 ; G03C5/16 ; G11B7/244 ; G11B7/2463
摘要:
An optical recording medium composed of a base material and a laser light sensitive layer which contains an azulenium dye as storage material with or without a binder is obtainable by spin-coating a solution containing an azulenium dye of the formula ##STR1## where R is C.sub.1 -C.sub.6 -alkyl which may be substituted or unsubstituted, and n is 1, 2 or 3, with or without a binder and one or more solvents which have evaporation numbers of not less than 4 and in which an azulenium dye of the abovementioned formula has a solubility of not less than 5 g/l onto a transparent base material based on a plastics material or glass.