Invention Grant
- Patent Title: Method for the reactive coloring of leather
- Patent Title (中): 皮革反应性着色方法
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Application No.: US10577776Application Date: 2004-10-28
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Publication No.: US08372161B2Publication Date: 2013-02-12
- Inventor: Laszlo Somogyi , Andrea Zamponi , Rolf Streicher , Harald Kiesow , Rainer Erhardt
- Applicant: Laszlo Somogyi , Andrea Zamponi , Rolf Streicher , Harald Kiesow , Rainer Erhardt
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE10350368 20031029; DE102004041187 20040825
- International Application: PCT/EP2004/012231 WO 20041028
- International Announcement: WO2005/040490 WO 20050506
- Main IPC: D06P3/30
- IPC: D06P3/30
Abstract:
The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is an electron-attracting radical, k is 1, 2 or 3, n is 0 or 1 and B is a CH═CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 7.5. The present invention also relates to novel dyes which are particularly useful for reactive dyeing of leather.
Public/Granted literature
- US20070033746A1 Method for the reactive coloring of leather Public/Granted day:2007-02-15
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