Patents by Inventor Gunther Duschek

Gunther Duschek 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).

  • Publication number: 20240124654
    Abstract: The invention relates to a catalyst pellet for anionic polymerization of organosiloxanes and/or for equilibration of organopolysiloxanes, comprising at least one (earth) alkali metal oxide, its preparation, as well as a method for polymerization of organosiloxanes and/or for equilibration of organopolysiloxanes by means of the catalyst pellet.
    Type: Application
    Filed: September 20, 2023
    Publication date: April 18, 2024
    Applicant: RUDOLF GMBH
    Inventors: Andreas WENNG, Alexander HOFER, Gunther DUSCHEK, Dirk SIELEMANN
  • Publication number: 20230114782
    Abstract: The present invention relates to a composition which can in particular be used as a soft handle composition in the finishing of textiles, comprising at least one quaternary ammonium silane, an organopolysiloxane compound having a dielectric constant of 2.90-10.0, optionally an emulsifier, water and optionally an organic solvent. The invention further relates to a method for preparing the composition according to the present invention, a use of the composition according to the present invention for finishing a textile, a method for finishing a textile, and a product that is obtained by the method according to the present invention.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 13, 2023
    Inventors: Rainer HAYESSEN, Ludwig HUBER, Dirk SIELEMANN, Gunther DUSCHEK
  • Publication number: 20210245132
    Abstract: The present invention relates to core-shell particles comprising a core comprising at least one lipophilic compound and a shell comprising at least one layer close to the core and one layer far from the core. The invention further relates to the preparation of such core-shell particles and their use, particularly in the finishing of fibers and textiles.
    Type: Application
    Filed: June 24, 2019
    Publication date: August 12, 2021
    Applicant: RUDOLF GMBH
    Inventors: Jonas NAWROTH, Dirk SIELEMANN, Gunther DUSCHEK
  • Patent number: 10933398
    Abstract: A device for carrying out a chemical reaction by a continuous method has a reactor with at least two reactor sections which define a direction of flow. The reactor has plug flow properties along the direction of flow. A recirculation line is present to withdraw a partial flow from the reactor at a first point and return it to the reactor at a second point located above the first point in the direction of flow. Means are provided which prevent a temperature increase in the reactor over a predetermined temperature range, for example change of more than approximately 50 K.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: March 2, 2021
    Assignees: Fluitec Invest AG, Rudolf GmbH
    Inventors: Silvano Andreoli, Tobias Vögeli, Daniel Altenburger, Alain Georg, Michael Schacht, Gunther Duschek
  • Patent number: 10822500
    Abstract: Preparations of a polyurethane and/or polyurea and a copolymer which are hydrophobic contain at least one conversion product (S), at least one copolymer (C), optionally at least one (blocked) polyisocyanate, optionally a solvent, and optionally at least one surface-active substance. The conversion product (S) may be the reaction product of at least one compound (A) with at least one unblocked or at least partially blocked di-, tri- or polyisocyanate (IC). The compound A may be the reaction product of a polyhydric alcohol with a carboxylic acid or with an alkylisocyanate, or a reaction product of an alkanolamine and/or alkylamine (a3) with a carboxylic acid and/or alkylisocyanate. The highly hydrophobic preparations may be applied to textiles without negatively influencing a subsequent adhesion of the textile substrate or the membrane permeability of the substrate even after thermal treatment, and exhibit very good wash permanence on the substrates.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: November 3, 2020
    Assignee: RUDOLF GMBH
    Inventors: Helmut Glas, Christine Albert, Gunther Duschek, Dirk Sielemann
  • Publication number: 20200216778
    Abstract: The present invention relates to compositions comprising at least one cationic polyelectrolyte, at least one anionic compound and at least one non-ionic surfactant and to the use thereof for finishing fibres and textiles.
    Type: Application
    Filed: June 13, 2018
    Publication date: July 9, 2020
    Applicant: RUDOLF GMBH
    Inventors: Johann HEIMGREITER, Rainer Wilhelm BRAUN, Gunther DUSCHEK
  • Publication number: 20200173098
    Abstract: The present invention relates to compositions comprising at least one cationic polyelectrolyte, at least one anionic compound and at least one non-ionic surfactant and their use for finishing textiles.
    Type: Application
    Filed: June 13, 2018
    Publication date: June 4, 2020
    Applicant: RUDOLF GMBH
    Inventors: Johann HEIMGREITER, Rainer Wilhelm BRAUN, Gunther DUSCHEK
  • Patent number: 10626223
    Abstract: The invention relates to polyurethane organopolysiloxanes and their applications, in particular for the finishing of textile fabrics and textile fibres.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 21, 2020
    Assignee: RUDOLF GMBH
    Inventors: Volker Dehm, Gunther Duschek, Rainer Hayessen, Dirk Sielemann, Martin Teichert, Maximilian Schubert
  • Publication number: 20190309174
    Abstract: The invention relates to preparations comprising a polyurethane and/or polyurea and a copolymer as well as their use as hydrophobing agents,
    Type: Application
    Filed: July 6, 2017
    Publication date: October 10, 2019
    Applicant: RUDOLF GMBH
    Inventors: Helmut GLAS, Christine ALBERT, Gunther DUSCHEK, Dirk SIELEMANN
  • Patent number: 10253450
    Abstract: The invention relates to preparations containing at least one blocked polyisocyanate and at least one oleophobic and/or hydrophobic finishing agent, and to the use of said preparation for the oleophobic and/or hydrophobic finishing of sheet material, in particular textiles.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: April 9, 2019
    Assignee: RUDOLF GMBH
    Inventors: Dirk Sielemann, Christine Albert, Gunther Duschek
  • Publication number: 20180326393
    Abstract: A device for carrying out a chemical reaction by a continuous method has a reactor with at least two reactor sections which define a direction of flow. The reactor has plug flow properties along the direction of flow. A recirculation line is present to withdraw a partial flow from the reactor at a first point and return it to the reactor at a second point located above the first point in the direction of flow. Means are provided which prevent a temperature increase in the reactor over a predetermined temperature range, for example change of more than approximately 50 K.
    Type: Application
    Filed: November 3, 2016
    Publication date: November 15, 2018
    Inventors: Silvano Andreoli, Tobias Vögeli, Daniel Altenburger, Alain Georg, Michael Schacht, Gunther Duschek
  • Publication number: 20180155503
    Abstract: The invention relates to polyurethane organopolysiloxanes and their applications, in particular for the finishing of textile fabrics and textile fibres.
    Type: Application
    Filed: May 24, 2016
    Publication date: June 7, 2018
    Applicant: RUDOLF GMBH
    Inventors: Volker DEHM, Gunther DUSCHEK, Rainer HAYESSEN, Dirk SIELEMANN, Martin TEICHERT, Maximilian SCHUBERT
  • Patent number: 9593208
    Abstract: The invention relates to polysiloxanes with quaternized heterocyclic groups in the side chain, to the use and production thereof, in particular for finishing textiles and for hydrophobing objects.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 14, 2017
    Assignee: RUDOLF GMBH
    Inventors: Volker Dehm, Gunther Duschek, Rainer Hayessen, Dirk Sielemann, Martin Teichert
  • Publication number: 20170022657
    Abstract: The invention relates to preparations containing at least one blocked polyisocyanate and at least one oleophobic and/or hydrophobic finishing agent, and to the use of said preparation for the oleophobic and/or hydrophobic finishing of sheet material, in particular textiles.
    Type: Application
    Filed: November 24, 2014
    Publication date: January 26, 2017
    Applicant: RUDOLF GMBH
    Inventors: Dirk SIELEMANN, Christine ALBERT, Gunther DUSCHEK
  • Publication number: 20160208052
    Abstract: The invention relates to polysiloxanes with quaternized heterocyclic groups in the side chain, to the use and production thereof, in particular for finishing textiles and for hydrophobing objects.
    Type: Application
    Filed: September 19, 2014
    Publication date: July 21, 2016
    Applicant: RUDOLF GMBH
    Inventors: Volker DEHM, Gunther DUSCHEK, Rainer HAYESSEN, Dirk SIELEMANN, Martin TEICHERT
  • Patent number: 8703894
    Abstract: The present invention relates to fluorocarbon polymer-free preparations (Z) based on water and/or organic solvents and their use as a finish on flat materials, containing (1) 10-90% of a reaction product (S) prepared by reacting a component (A) with a partially blocked or non-blocked di-, tri- or polyisocyanate (IC) and (2) 10-90% of a C8-C28-alkyl groups containing organopolysiloxane, (3) 0-45% of a blocked or non-blocked di-, tri- or polyisocyanate, and (4) if appropriate customary emulsifiers. When used as a finish on flat materials, the preparations endow the treated flat materials with durable hydrophobic properties.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: April 22, 2014
    Assignee: Rudolf GmbH & Co. KG Chemische Fabrik
    Inventors: Gunther Duschek, Dirk Sielemann
  • Patent number: 8231802
    Abstract: The invention concerns preparations based on water and/or organic solvents and their use as a finish on flat materials. An exemplary preparation includes: (1) 10-90 percent by weight of a fluorine containing oil- and water-repellent agent, (2) 10-80 percent by weight of a hydrophobic reaction product(S) obtainable by reacting a component (A) with a partially blocked or non-blocked di-, tri- or polyisocyanate (IC), and (3) 0-45 percent by weight of a blocked or non-blocked di-, tri- or polyisocyanate.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: July 31, 2012
    Assignee: Rudolf GmbH
    Inventors: Bernhard Sandner, Gunther Duschek
  • Publication number: 20100190397
    Abstract: The present invention relates to fluorocarbon polymer-free preparations (Z) based on water and/or organic solvents and their use as a finish on flat materials, containing (1) 10-90% of a reaction product (S) prepared by reacting a component (A) with a partially blocked or non-blocked di-, tri- or polyisocyanate (IC) and (2) 10-90% of a C8-C28-alkyl groups containing organopolysiloxane, (3) 0-45% of a blocked or non-blocked di-, tri- or polyisocyanate, and (4) if appropriate customary emulsifiers. When used as a finish on flat materials, the preparations endow the treated flat materials with durable hydrophobic properties.
    Type: Application
    Filed: April 29, 2008
    Publication date: July 29, 2010
    Applicant: RUDOLF GMBH & CO. KG CHEMISCHE FABRIK
    Inventors: Gunther Duschek, Dirk Sielemann
  • Patent number: 7354458
    Abstract: A composition based on water and/or organic solvents and their use as a finish on flat materials, comprising (1) 10-90% of a hydrophobic wax based component, (2) 10-90% of a hydrophobic reaction product prepared by reacting a component (A) with a partially blocked or non-blocked di-, tri- or polyisocyanate and (3) ?0-45% by weight of a blocked or non-blocked di-, tri- or polyisocyanate and (4) optionally, an emulsifier. When used as a finish on flat materials, the composition can endow the treated flat materials with durable hydrophobic properties.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: April 8, 2008
    Assignee: Rudolf GmbH & Co., KG, Chemische Fabrik
    Inventors: Bernhard Sandner, Alfred Wilfling, Gunther Duschek
  • Patent number: 7329707
    Abstract: This invention concerns preparations containing partially quarternized amino-functional organopolysiloxanes and use thereof in aqueous systems on textile substrates. The preparations contain (1) 2 to 60 percent by weight of a partially quartenized amino-functional organopolysiloxane, (2) 2 to 40 percent by weight of an emulsifier, (3) 0 to 15 percent of a hydrotrope and (4) 20 to 95 percent by weight of water, with the proviso that the total nitrogen content of component (1) is in the range from 0.05 to 2.0 percent by weight, based on the overall composition of component (1).
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: February 12, 2008
    Assignee: Rudolf GmbH & Co. KG Chemische Fabrik
    Inventors: Bernhard Sandner, Cristina Stanica, Rainer Hayessen, Gunther Duschek