Invention Grant
- Patent Title: Method for the reactive coloration of leather
- Patent Title (中): 皮革反应性着色方法
-
Application No.: US11628659Application Date: 2005-06-07
-
Publication No.: US08382857B2Publication Date: 2013-02-26
- Inventor: Laszlo Somogyi , Andrea Zamponi , Harald Kiesow
- Applicant: Laszlo Somogyi , Andrea Zamponi , Harald Kiesow
- 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: DE102004027812 20040608
- International Application: PCT/EP2005/006107 WO 20050607
- International Announcement: WO2005/121439 WO 20051222
- 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 halogen, C1-C4-alkyl or C1-C4-alkoxy, k is 0, 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 8, generally in the region of 8 to 11.
Public/Granted literature
- US20070234488A1 Method for the Reactive Coloration of Leather Public/Granted day:2007-10-11
Information query
