发明名称 |
Disazo dyes having aminobenzoylamino group |
摘要 |
The invention is directed to a novel disazo compound represented by the formula (I) <IMAGE> (I) wherein Q is a substituted or unsubstituted phenyl or naphthyl group; Me is copper, nickel, zinc or iron; and Z is hydrogen, lower alkyl, lower alkoxyl, sulfo, or substituted or unsubstituted amino; and also to a polarizing film having said disazo compound incorporated into a polarizing film base. The polarizing film exhibits high polarizing activities comparable to those of an iodine-containing polarizing film, and also has excellent durability.
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申请公布号 |
US5480977(A) |
申请公布日期 |
1996.01.02 |
申请号 |
US19930134942 |
申请日期 |
1993.10.13 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
OGINO, KAZUYA;HAYASHI, NARUTOSHI;OMURA, TAKASHI |
分类号 |
C09B45/24;C09B45/28;C09B45/32;G02B1/08;G02B5/30;(IPC1-7):C09B45/24;F21V9/14 |
主分类号 |
C09B45/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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