Patents by Inventor Sebastian Doerr

Sebastian Doerr 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: 11008416
    Abstract: The present invention relates to aqueous, curable composition, comprising or consisting of A) at least one uretdione prepolymer, which comprises at least one uretdione group, and which is obtainable by reacting A1) at least one uretdione polyisocyanate having an isocyanate functionality of at least 2.0, whereby said uretdione polyisocyanate is obtained from at least one aliphatic polyisocyanate, with A2) at least one compound comprising at least one Zerewitinoff-active group, and A3) at least one reactant, which comprises at least one Zerewitinoff-active group and being different from A2 or which is H2O, preferably in the presence of at least one catalyst, to obtain the uretdione prepolymer, wherein the prepolymer has an acid number of at most 4 mg KOH/g, preferably determined according to DIN EN ISO 2114:2002-06 as 37 wt. % aqueous dispersion; and B) optionally at least one compound, which comprises at least one Zerewitinoff-active group; and C) at least one azolate-compound.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 18, 2021
    Assignees: Covestro LLC, Covestro Deutschland AG
    Inventors: Sebastian Dörr, Saskia Beuck, Hans-Josef Laas, Dorota Greszta-Franz, Nusret Yuva, Ralph-Georg Born, Alan Ekin
  • Patent number: 10988565
    Abstract: The invention provides a process for producing polyurethane foams, in which compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: April 27, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Jan Suetterlin, Marc-Stephan Weiser, Sascha Plug, Sebastian Dörr, Claudine Stoye
  • Patent number: 10941238
    Abstract: The present invention relates to a viscoelastic element comprising a polyurethane foam, wherein the polyurethane foam can be obtained by reacting at least one isocyanate-functional prepolymer (VI) in the presence of a special polyurethane urea dispersion (V2), wherein the reaction of the prepolymer (VI) takes place in the presence of the polyurethane urea (V2) with a medium containing isocyanate-reactive groups. The invention also relates to a method for producing the viscoelastic element and to the use thereof.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: March 9, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr, Jeff Motley
  • Patent number: 10907078
    Abstract: The invention relates to a contact adhesive product, comprising a substrate and a polyurethane resin, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 2, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Sebastian Dörr, Marc-Stephan Weiser, Sascha Plug
  • Publication number: 20210024679
    Abstract: The present invention relates to a catalyst system comprising: A) at least one compound selected from azoles, oxazoles, thiazoles, benzotriazole, benzimidazole, benzoxazole and salts thereof; B) at least one acid catcher, which contains at least one epoxy group; and C) at least one catalyst containing an N,N,N?-trisubstituted amidine structure with an amidine group content of from 12.0 to 47.0 wt %, calculated as CN2 with molecular weight=40. The invention also relates to a kit which comprises the catalyst system of the present invention and an aqueous uretdione dispersion having an acid number of from 1 to 100 KOH/g and additionally at least one carboxyl group. The invention further relates to a method for producing a polyurethane layer using the catalyst system of the present invention and said uretdione dispersion, and to the obtained polyurethane layer, and to the use of the catalyst system for curing aqueous acidic uretdione dispersions and/or for the production of paints or coatings.
    Type: Application
    Filed: March 21, 2019
    Publication date: January 28, 2021
    Inventors: Saskia Beuck, Sebastian Doerr, Hans-Josef Laas, Dorota Greszta-Franz, Nusret Yuva, Ralph-Georg Born
  • Publication number: 20210024680
    Abstract: The invention relates to aqueous uretdione group-containing compositions comprising or consisting of (A) at least one uretdione group-containing curing agent based on aliphatic, cycloaliphatic, araliphatic, and/or aromatic polyisocyanates which do not contain chemically bonded hydrophilating groups; (B) at least one hydroxy group-containing polyol which contains at least one chemically bonded carboxylic acid group; (C) optionally solvents; and (D) optionally auxiliary agents and additives; wherein the quantity ratio of the components (A) and (B) is measured such that the molar ratio of the NCO groups of the curing agent (A), said groups being provided in the form of uretdione, to the NCO reactive groups of the polyol (B) equals 3.0:0.5 to 0.5:3.0, and A and B are provided as a physical mixture.
    Type: Application
    Filed: March 21, 2019
    Publication date: January 28, 2021
    Inventors: Dorota Greszta-Franz, Saskia Beuck, Sebastian Doerr, Hans-Josef Laas, Nusret Yuva, Heinz-Dietmar Gewiss
  • Publication number: 20210017322
    Abstract: The present invention relates to a specific uretdione prepolymer, and an aqueous curable composition based on the specific uretdione prepolymer. Furthermore, it pertains to a process for curing said aqueous curable composition, the cured article obtained by this process and additionally to the use of said aqueous composition for coatings, adhesives and/or sealants.
    Type: Application
    Filed: March 21, 2019
    Publication date: January 21, 2021
    Inventors: Saskia Beuck, Sebastian Doerr, Hans-Josef Laas, Dorota Greszta-Franz, Nusret Yuva
  • Patent number: 10883026
    Abstract: The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 5, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr
  • Publication number: 20200390681
    Abstract: The invention relates to a hairstyle-stabilizing composition comprising an especially preferred amorphous polyurethane urea having carboxyl or carboxylate groups. The invention further relates to the use of the especially preferred amorphous polyurethane urea for producing a hairstyle-stabilizing composition and also to a method for generating a water-stable hairstyle and a method for producing the hairstyle-stabilizing composition.
    Type: Application
    Filed: February 25, 2019
    Publication date: December 17, 2020
    Inventors: Sebastian Doerr, Sophie Viala, Laurence Pottie
  • Publication number: 20200377643
    Abstract: The present invention relates to a viscoelastic element comprising a polyurethane foam, wherein the polyurethane foam can be obtained by reacting at least one isocyanate-functional prepolymer (V1) in the presence of a special polyurethane urea dispersion (V2), wherein the reaction of the prepolymer (V1) takes place in the presence of the polyurethane urea (V2) with a medium containing isocyanate-reactive groups. The invention also relates to a method for producing the viscoelastic element and to the use thereof.
    Type: Application
    Filed: October 2, 2018
    Publication date: December 3, 2020
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr, Jeff Motley
  • Publication number: 20200354614
    Abstract: The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Application
    Filed: December 13, 2018
    Publication date: November 12, 2020
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr
  • Patent number: 10750750
    Abstract: Disclosed are seed treatment compositions that include: (a) an aqueous polyurethane dispersion; and (b) an insecticide, a fungicide, a nematicide, and/or other pesticides. Also disclosed are seeds treated with such a treatment compositions and methods for treating a seed using such treatment composition.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 25, 2020
    Assignees: Covestro LLC, Covestry Deutschland AG, Bayer CropScience LP
    Inventors: Alan Ekin, James A. Thompson-Colon, Timothy Pike, Scott Grace, Jinqi Li, Sebastian Doerr, Ronald Reichert, William S. Hanson
  • Patent number: 10722609
    Abstract: The present invention relates to a method that includes providing a formulation having an isocyanate-functional prepolymer and a curing component comprising an amino-functional aspartic ester of the general formula (I) applying the formulation to a cell tissue; and curing the formulation such that the loss of blood (haemostatic) or tissue fluids is staunched or leaks in cell tissues are sealed.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: July 28, 2020
    Assignee: Adhesys Medical GmbH
    Inventors: Heike Heckroth, Burkhard Köhler, Sebastian Dörr
  • Publication number: 20200062994
    Abstract: The present invention relates to a composition, a process for its production, and use thereof. The composition comprises water, a polyurethane polymer and a water-soluble salt of a chelating agent, said polyurethane polymer having a hydrolyzable group, said polyurethane polymer is a reaction product comprising the following reactive components: Component A) an isocyanate, Component B) a compound having an isocyanate-reactive group, wherein said compound comprises at least one group that can be converted to said hydrolyzable group, optionally Component C) an emulsifier, optionally Component D) a solvent, and optionally Component E) a reactive diluent; said water-soluble salt of the chelating agent is present in an amount of from 0.04 to 1.
    Type: Application
    Filed: February 28, 2018
    Publication date: February 27, 2020
    Inventors: Sebastian DÖRR, Evgeny AVTOMONOV, Yingdan ZHU, Chen JIN, Winnie WEI, Maria ZHOU
  • Publication number: 20200054781
    Abstract: The invention relates to a process for producing a composite material for wound dressings, comprising the following steps: (I) providing a first film, having a first film surface and a second film surface running virtually parallel to the first film surface; (II) mixing an NCO-terminated polyurethane prepolymer with at least water to give a polyurethane prepolymer/water mixture, (III) applying the polyurethane prepolymer/water mixture to at least one part of the first film surface to form a layer, the layer having a first layer surface which is in contact with the first film via at least one part of the first film surface, and having a second layer surface which runs virtually parallel to the first layer surface; (IV) covering at least one part of the second layer surface with a further film, wherein the bond strength between the first film and the layer and also between the layer and the further film is greater in each case than the tensile strain at break of the layer.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 20, 2020
    Inventors: Marc-Stephan WEISER, Sascha PLUG, Sebastian DÖRR
  • Publication number: 20200046875
    Abstract: The present invention relates to a method that includes providing a formulation having an isocyanate-functional prepolymer and a curing component comprising an amino-functional aspartic ester of the general formula (I) applying the formulation to a cell tissue; and curing the formulation such that the loss of blood (haemostatic) or tissue fluids is staunched or leaks in cell tissues are sealed.
    Type: Application
    Filed: June 25, 2019
    Publication date: February 13, 2020
    Applicant: Adhesys Medical GmbH
    Inventors: Heike Heckroth, Burkhard KÖHLER, Sebastian DÖRR
  • Publication number: 20190382635
    Abstract: The invention relates to a contact adhesive product, comprising a substrate and a polyurethane resin, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Application
    Filed: June 29, 2017
    Publication date: December 19, 2019
    Applicant: Covestro Deutschland AG
    Inventors: Sebastian DÖRR, Marc-Stephan WEISER, Sascha PLUG
  • Publication number: 20190335878
    Abstract: The use of a foam comprising polyurethane for cosmetic applications is provided. Process for applying a cosmetic component to a skin via the foam and a process for cleaning a part of a skin via the foam are provided too. An applicator as well as an envelope and a layered structure comprising the foam are shown.
    Type: Application
    Filed: November 14, 2016
    Publication date: November 7, 2019
    Inventors: Sebastian DÖRR, Paula Cristina ALVES RODRIGUES, Martin KRAUSE, Xiaohui XIONG
  • Publication number: 20190292299
    Abstract: The present invention relates to aqueous, curable composition, comprising or consisting of A) at least one uretdione prepolymer, which comprises at least one uretdione group, and which is obtainable by reacting A1) at least one uretdione polyisocyanate having an isocyanate functionality of at least 2.0, whereby said uretdione polyisocyanate is obtained from at least one aliphatic polyisocyanate, with A2) at least one compound comprising at least one Zerewitinoff-active group, and A3) at least one reactant, which comprises at least one Zerewitinoff-active group and being different from A2 or which is H2O, preferably in the presence of at least one catalyst, to obtain the uretdione prepolymer, wherein the prepolymer has an acid number of at most 4 mg KOH/g, preferably determined according to DIN EN ISO 2114:2002-06 as 37 wt. % aqueous dispersion; and B) optionally at least one compound, which comprises at least one Zerewitinoff-active group; and C) at least one azolate-compound.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 26, 2019
    Inventors: Sebastian Dörr, Saskia Beuck, Hans-Josef Laas, Dorota Greszta-Franz, Nusret Yuva, Ralph-Georg Born, Alan Ekin
  • Patent number: 10391198
    Abstract: The present invention relates to a method that includes providing a formulation having an isocyanate-functional prepolymer and a curing component comprising an amino-functional aspartic ester of the general formula (I) applying the formulation to a cell tissue; and curing the formulation such that the loss of blood (haemostatic) or tissue fluids is staunched or leaks in cell tissues are sealed.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: August 27, 2019
    Assignee: Adhesys Medical GmbH
    Inventors: Heike Heckroth, Burkhard Köhler, Sebastian Dörr