发明授权
US3730725A Additive color screen elements containing an azo chrome-complexed dye
失效
含有AZO铬复合染料的添加色素筛选元素
- 专利标题: Additive color screen elements containing an azo chrome-complexed dye
- 专利标题(中): 含有AZO铬复合染料的添加色素筛选元素
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申请号: US3730725D申请日: 1971-09-30
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公开(公告)号: US3730725A公开(公告)日: 1973-05-01
- 发明人: IDELSON E
- 申请人: POLAROID CORP
- 专利权人: Polaroid Corp
- 当前专利权人: Polaroid Corp
- 优先权: US18540371 1971-09-30
- 主分类号: G03C8/30
- IPC分类号: G03C8/30 ; G03F5/00 ; G03F7/04
摘要:
ADDITIVE COLOR SCREEN ELEMENTS ARE PREPARED USING A MIXED-AXO CHROME-COMPLEXED DYE SYSTEM TO PROVIDE THE RED ELEMENT, I.E., A COMBINATION OF A PHENYLAZO PYRAXOLONE AND A NAPTHYLAZO PYRAZOLONE.
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