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1.发明授权Process for producing o-cyano-phenyl and o-cyano-benzoisothiazolyl azo-p-aminobenzene dyes 失效生产O-氰基苯基和O-氰基苯甲酰氧基苯甲酰氨基 - 氨基苯甲酸染料的方法
公开(公告)号：US3876621A
公开(公告)日：1975-04-08
申请号：US26797072
申请日：1972-06-30
Applicant: BASF AG
Inventor： HAGEN HELMUT , HANSEN GUENTHER , SCHAFFNER ERNST
CPC classification number: C09B43/42
Abstract: A process for the production of o-cyano-phenyl and o-cyanobenzoisothiazolyl, azo-p-aminobenzene dyes by replacing a bromine atom in the ortho-position by the cyano group through reaction with a heavy metal cyanide, particularly cuprous cyanide, in an aqueous medium and at elevated temperature.
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公开(公告)号：US3876626A
公开(公告)日：1975-04-08
申请号：US31715472
申请日：1972-12-21
Applicant: BASF AG
Inventor： EILINGSFELD HEINZ , HANSEN GUENTHER , SCHAFFNER ERNST
CPC classification number: C09B29/0809 , C09B29/08
Abstract: Azo disperse dyes containing an N-substituted 3-amino-6nitrophthalimide as diazo component and an aniline coupling component. The dyes give yellow to blue colorations particularly on polyesters; these colorations have good fastness properties. In which
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