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:
May. 30, 2006
Filed:
Aug. 03, 2002
Franz Dirschl, Augsburg, DE;
Edeltraud Schidek, Augsburg, DE;
Thu Thao Reimann-dang, Halle/Westfalen, DE;
Rolf Moors, Bonstetten, DE;
Simpert Lüdemann, Bobingen, DE;
Wilhelm Artner, Motzenhofen, DE;
Heinz Gaugenrieder, Zusmarshausen, DE;
Franz Dirschl, Augsburg, DE;
Edeltraud Schidek, Augsburg, DE;
Thu Thao Reimann-Dang, Halle/Westfalen, DE;
Rolf Moors, Bonstetten, DE;
Simpert Lüdemann, Bobingen, DE;
Wilhelm Artner, Motzenhofen, DE;
Heinz Gaugenrieder, Zusmarshausen, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
Fiber materials in the form of fabrics receive, as a result of treatment with compositions according to the invention, a pleasant soft hand and excellent oil-and water-repelling properties with good permanence. The compositions can be obtained by a) preparing a solution of a polysiloxane and an extender with blocked isocyanate groups in an organic solvent, b) dispersing this solution in water, c) removing the organic solvent and d) combining the aqueous dispersion obtained with a second aqueous dispersion which comprises a polymer with perfluoroalkyl groups. One variant of this preparation process consists in cousing a polymer with perfluoroalkyl groups as early as in step a). In this case, step d) can be omitted.