发明授权
- 专利标题: High color strength diarylide yellow pigment compositions
- 专利标题(中): 高色强度二芳基黄颜料组合物
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申请号: US722976申请日: 1985-04-12
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公开(公告)号: US4648907A公开(公告)日: 1987-03-10
- 发明人: Byron G. Hays , Robert J. Stanaback
- 申请人: Byron G. Hays , Robert J. Stanaback
- 申请人地址: NJ Clifton
- 专利权人: BASF Corporation
- 当前专利权人: BASF Corporation
- 当前专利权人地址: NJ Clifton
- 主分类号: C09B35/10
- IPC分类号: C09B35/10 ; C09B67/22 ; C09D11/02 ; C09D11/08
摘要:
Improved diarylide yellow pigment compositions having high color strength. The compositions are manufactured by modifying tetrazotized 3,3'-dichlorobenzidine with a solution of about 3 to about 5 mole percent of a first acetoacetarylide, followed by coupling into a second acetoacetarylide such as acetoacetanilide.
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