Urethanes containing perfluoroalkyl and epichlorohydrin groups, aqueous dispersions containing same, and use thereof

The novel urethanes conform to the following formula I: where a is from 5 to 17 and b from 1 to 7. These urethanes are prepared by reacting the corresponding perfluoroalkylethanol-epichlorohydrin adducts with toluylene diisocyanates. The novel aqueous dispersions consist essentially of novel urethan...

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Bibliographische Detailangaben
Hauptverfasser:	BATHELT,HEINRICH,DR, GLENZ,WOLFGANG, WEHOWSKY,FRANK,DR, MAST,JAN-HILBERT, HINTERMAIER,KARL,DR, EHRL,WINFRIED,DR, LOTZ,WERNER,DR, HERDT,HUBERT, MUELLER,MANFRED
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS THEREFOR CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW ORSIMILAR MATERIALS CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS FOR TANNING FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HIDES LAUNDERING LEATHER METALLURGY NAILING OR STAPLING MACHINES IN GENERAL PELTS PERFORMING OPERATIONS PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FORIMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILARMATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITHPERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR SKINS TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:	The novel urethanes conform to the following formula I: where a is from 5 to 17 and b from 1 to 7. These urethanes are prepared by reacting the corresponding perfluoroalkylethanol-epichlorohydrin adducts with toluylene diisocyanates. The novel aqueous dispersions consist essentially of novel urethanes, cationic or betainic and nonionic emulsifiers, water-insoluble carboxylic and/or dicarboxylic esters and alkanediols or polyalkanediols, which may be etherified in either or both positions, in water. The novel urethanes and the novel aqueous dispersions are used for conferring oleophobic and hydrophobic properties on leather and furs.