Patents by Inventor Franz Dirschl
Franz Dirschl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7053148Abstract: 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.Type: GrantFiled: August 3, 2002Date of Patent: May 30, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Edeltraud Schidek, Thu Thao Reimann-Dang, Rolf Moors, Simpert Lüdemann, Wilhelm Artner, Heinz Gaugenrieder
-
Publication number: 20040249165Abstract: 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.Type: ApplicationFiled: December 4, 2003Publication date: December 9, 2004Inventors: Franz Dirschl, Edeltraud Schidek, Thu Thao Reimann-Dang, Rolf Moors, Simpert Ludemann, Wilhelm Artner, Heinz Gaugenrieder
-
Patent number: 6803407Abstract: Described are polysiloxane compositions that are obtainable in 2 steps. The first step comprises reacting a linear organopolysiloxane which contains Si—H bonds with a compound that has a terminal C═C double bond and a polyoxyalkylene chain. This reaction is carried out in such a way that Si—H bonds are still present in the resultant product. The second step comprises adding a base or water and an acid to the resultant product. The hydrophilic properties of the resultant polysiloxane compositions can be influenced in a specific manner. The compositions are useful for treating fiber materials, especially textile fabrics. The effects obtained are notable for good durability. Further groups may be incorporated into the polysiloxanes to open up further applications.Type: GrantFiled: September 13, 2002Date of Patent: October 12, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Harald Chrobaczek, Franz Dirschl, Ralf Goretzki, Günther Tschida
-
Publication number: 20040082745Abstract: Novel fluorine-containing paper sizes which impart oil and grease resistance to paper and soil-release properties to textile products are described which are the copolymerization products of (a) a perfluoroalkyl-substituted (meth)acrylate or (meth)acrylamide, (b) a secondary- or tertiary-amino or quaternary ammonium group-containing (meth)acrylate or (meth)acrylamide, (c) vinylidene chloride and, optionally, d) other copolymerizable nonfluorinated vinyl monomers.Type: ApplicationFiled: February 21, 2003Publication date: April 29, 2004Inventors: Shobha Kantamneni, Franz Dirschl
-
Patent number: 6566470Abstract: Novel fluorine-containing paper sizes which impart oil and grease resistance to paper and soil-release properties to textile products are described which are the copolymerization products of (a) a perfluoroalkyl-substituted (meth)acrylate or (meth)acrylamide, (b) a secondary- or tertiary-amino or quaternary ammonium group-containing (meth)acrylate or (meth)acrylamide, (c) vinylidene chloride and, optionally, d) other copolymerizable nonfluorinated vinyl monomers.Type: GrantFiled: April 12, 2001Date of Patent: May 20, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Shobha Kantamneni, Franz Dirschl
-
Publication number: 20030026915Abstract: Described are polysiloxane compositions that are obtainable in 2 steps. The first step comprises reacting a linear organopolysiloxane which contains Si—H bonds with a compound that has a terminal C═C double bond and a polyoxyalkylene chain. This reaction is carried out in such a way that Si—H bonds are still present in the resultant product. The second step comprises adding a base or water and an acid to the resultant product. The hydrophilic properties of the resultant polysiloxane compositions can be influenced in a specific manner. The compositions are useful for treating fiber materials, especially textile fabrics. The effects obtained are notable for good durability. Further groups may be incorporated into the polysiloxanes to open up further applications.Type: ApplicationFiled: September 13, 2002Publication date: February 6, 2003Inventors: Harald Chrobaczek, Franz Dirschl, Ralf Goretzki, Gunther Tschida
-
Publication number: 20020096286Abstract: Novel fluorine-containing paper sizes which impart oil and grease resistance to paper and soil-release properties to textile products are described which are the copolymerization products of (a) a perfluoroalkyl-substituted (meth)acrylate or (meth)acrylamide, (b) a secondary- or tertiary-amino or quaternary ammonium group-containing (meth)acrylate or (meth)acrylamide, (c) vinylidene chloride and, optionally, d) other copolymerizable nonfluorinated vinyl monomers.Type: ApplicationFiled: April 12, 2001Publication date: July 25, 2002Inventors: Shobha Kantamneni, Franz Dirschl
-
Patent number: 6387999Abstract: Compositions comprising an ester with perfluoroalkyl groups and an oligo- or polyurethane which may likewise contain perfluoroalkyl groups are useful for the oil and water repellant finishing of sheetlike textile materials. The compositions may additionally include acrylic polymers having perfluoroalkyl groups and extenders. Especially the use of nonionic aqueous dispersions of the compositions makes it possible to obtain textiles with little if any effect losses after mechanical abrasion and good LAD effects.Type: GrantFiled: September 25, 2000Date of Patent: May 14, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Simpert Lüdemann, Edeltraud Schidek, Heinz Gaugenrieder, Wilhelm Artner
-
Patent number: 6306958Abstract: Aqueous dispersions comprising as component A) a compound containing two or more blocked isocyanate groups in the molecule and as component B) a compound obtainable by reacting a diepoxy compound with a diamine or polyamine and subsequently reacting the resulting reaction product with an acid and possibly as component C) a dispersant are suited together with fluorine containing oligomers or polymers for the oil-, water- and soil-repellent finishing of fiber materials.Type: GrantFiled: December 16, 1999Date of Patent: October 23, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Franz Mosch, Wilhelm Artner, Edeltraud Schidek, Heinz Gaugenrieder, Simpert Lüdemann, Erich Rössler
-
Patent number: 6080830Abstract: Products which are produced by reaction of diisocyanates with di- or polyhydric alcohols and/or with one or more mono- and/or diethers of such alcohols and subsequent reaction with organic amines containing two or more alcoholic hydroxyl groups and subsequent blocking of free isocyanate groups are suitable for the finishing of fiber materials, in particular in the form of aqueous dispersions as extenders for use in combination with polymers containing perfluoroalkyl groups for the oil-, water- and soil-repellent finishing of fiber materials.Type: GrantFiled: April 15, 1998Date of Patent: June 27, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Franz Mosch, Theodor Angele, Wilhelm Artner, Edeltraud Schidek, Erich Rossler
-
Patent number: 5562761Abstract: Compositions in the form of aqueous dispersions which contain dihydroxypolyorganosiloxanes, amino-functional silanes and cyclic oligosiloxanes and/or reaction products of these components, are suitable for coating sheet materials made of fiber materials. This confers, to the sheet materials, good waterproofness properties with good permanency of the waterproofness, good low-temperature flexibility and springiness.Type: GrantFiled: December 27, 1995Date of Patent: October 8, 1996Assignee: Ciba-Geigy CorporationInventors: Franz Dirschl, Harald Chrobaczek, Rainer Augart, Hans-Ludwig Kienle, Jurgen Uhl
-
Patent number: 5196260Abstract: The present invention relates to a process for the treatment of fibrous materials with modified organopolysiloxanes, wherein, in an aqueous medium, an organopolysiloxane copolymer prepared in a first stage from customary cyclic siloxanes (A) and unsaturated silanes (B) in the presence of a crosslinking agent and emulsifier (1) is copolymerized in a second stage with at least one vinyl monomer in the presence of emulsifiers (2), and the resulting dispersion of the modified organopolysiloxane copolymer is applied to the material in the customary manner and the material is dried and subjected to condensation.The process has the advantage that the materials, in particular textiles, treated by the process, above all coated by the process, have very good waterproof properties and at the same time good to very good water repellency. However, the materials are simultaneously distinguished by a pleasant soft handle, without the degree of whiteness thereof being noticeably impaired.Type: GrantFiled: May 27, 1992Date of Patent: March 23, 1993Assignee: Ciba-Geigy CorporationInventors: Franz Dirschl, Jurgen Uhl, Michael Bernheim