The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1987
Filed:
Aug. 28, 1986
Heinrich Bathelt, Altotting, DE;
Winfried Ehrl, Neuotting, DE;
Frank Wehowsky, Burgkirchen, DE;
Rolf Kleber, Neu-Isenburg, DE;
Werner Lotz, Niedernhausen, DE;
Wolfgang Glenz, Kelkheim, DE;
Hubert Herdt, Langen, DE;
Lothar Jackel, Florsheim am Main, DE;
Jan-Hilbert Mast, Hunfelden, DE;
Karl Hintermeier, Frankfurt am Main, DE;
Manfred Muller, Gelnhausen, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
The novel urethanes correspond to the formula I below ##STR1## in which a denotes a number from 5 to 17 and b denotes a number from 1 to 7. These urethanes are prepared by reacting the corresponding perfluoroalkylethanol/epichlorohydrin adducts with toluelene diisocyanates. The novel aqueous dispersions are essentially composed of the novel urethanes, cationic or betaine emulsifiers and non-ionic emulsifiers, water-insoluble carboxylic and/or dicarboxylic acid esters and alkanediols or polyalkanediols which can be etherified on one or both sides, in water. The novel urethanes and the novel aqueous dispersions are used to impart an oleophobic and hydrophobic finish to textiles, leather and furs. They are also suitable for the treatment of unpainted timber, for example unpainted furniture.