发明授权
- 专利标题： Bisazo inkjet dyes
- 专利标题（中）： 双偶氮喷墨染料
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申请号： US948037申请日： 1997-10-09
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公开(公告)号： US5882391A公开(公告)日： 1999-03-16
- 发明人: Peter Gregory , Prahalad Manibhai Mistry , Roy Bradbury , Paul Wight
- 申请人： Peter Gregory , Prahalad Manibhai Mistry , Roy Bradbury , Paul Wight
- 申请人地址： GB2 London
- 专利权人： Zeneca Limited
- 当前专利权人： Zeneca Limited
- 当前专利权人地址： GB2 London
- 优先权： GBX9621224 19961011
- 主分类号： C09B31/08
- IPC分类号： C09B31/08 ; C09D11/00 ; D06P5/30 ; C09D11/02
摘要：
A bisazo dye of Formula (1) and salts thereof: ##STR1## in which R is H or ##STR2## R.sub.1 and R.sub.2 each independently is H, optionally substituted C.sub.1-4 -alkyl or optionally substituted aryl;R.sub.3 and R.sub.5 together with the carbon atoms to which they are attached form a 5- or 6-membered carbocyclic ring which is optionally substituted by SO.sub.3 H;R.sub.4 is H;R.sub.6 is COOH;n is 1, 2 or 3; andp is 1, 2, 3 or 4.The dyes are useful for ink jet printing.
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