Invention Grant
US4837269A 2-aminothiophene radical substituted by an electron withdrawing group
失效
由吸电子基团取代的2-氨基噻吩基团
- Patent Title: 2-aminothiophene radical substituted by an electron withdrawing group
- Patent Title (中): 由吸电子基团取代的2-氨基噻吩基团
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Application No.: US68168Application Date: 1987-06-30
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Publication No.: US4837269APublication Date: 1989-06-06
- Inventor: Karl-Heinz Etzbach , Guenter Hansen , Ernst Schefczik , Helmut Reichelt
- Applicant: Karl-Heinz Etzbach , Guenter Hansen , Ernst Schefczik , Helmut Reichelt
- Applicant Address: DEX Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DEX Ludwigshafen
- Priority: DEX3622297 19860703
- Main IPC: C09B31/02
- IPC: C09B31/02 ; C09B31/04 ; C09B31/14
Abstract:
Disazothiphene dyes of the formula ##STR1## where X is an electron withdrawing group, Z is an electron withdrawing group, D is the radical of a diazo component and K is the radical of a coupling component, are highly suitable for dyeing synthetic fibers, in particular polyesters.
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