公开(公告)号：DE3605844A1

公开(公告)日：1987-08-27

申请号：DE3605844

申请日：1986-02-22

Applicant: HOECHST AG

Inventor： BATHELT HEINRICH DR ,  EHRL WINFRIED DR ,  WEHOWSKY FRANK DR ,  LOTZ WERNER DR ,  GLENZ WOLFGANG ,  HERDT HUBERT ,  MAST JAN-HILBERT ,  HINTERMAIER KARL DR ,  MUELLER MANFRED

IPC: B27K3/38 ,  C14C9/00 ,  D06M13/428 ,  C07C125/073

Abstract: 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.