Patents by Inventor Jan Schonberger
Jan Schonberger 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).
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Patent number: 9579412Abstract: The present invention relates to an isocyanate-free multicomponent system, especially for production of foams for medical products such as wound dressings, comprising at least two separate components, the first component comprising at least one alkoxysilane-terminated prepolymer and the second component an aqueous component, and the aqueous component having a pH of 4.0 to 9.5 at 20 DEG C.Type: GrantFiled: September 24, 2012Date of Patent: February 28, 2017Assignee: Covestro Deutschland AGInventor: Jan Schönberger
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Patent number: 9572868Abstract: The present invention relates to an isocyanate-free multi-component system, in particular for medical uses such as foamable wound coverings, with at least two separate components, wherein the first component comprises at least one alkoxysilane-terminated prepolymer and the second component comprises an aqueous component, wherein the aqueous component is a polyurethane dispersion.Type: GrantFiled: September 24, 2012Date of Patent: February 21, 2017Assignee: Covestro Deutschland AGInventors: Jan Schönberger, Sebastian Dörr
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Patent number: 9440996Abstract: The present invention relates to an alpha-alkoxysilane-terminated prepolymer preparable by reaction of at least one polyether polyol, of a polyisocyanate and of an alpha-alkoxysilane having at least one isocyanate-reactive group, said polyether polyol having a weight average of 500 to 7000 g/mol and having ethylene oxide and propylene oxide units, the proportion of ethylene oxide units being up to 50% by weight based on the polyether polyol. The invention further provides a process for preparing an inventive alpha-alkoxysilane-terminated prepolymer, a composition, a multicomponent system and a spray can comprising an inventive alpha-alkoxysilane-terminated prepolymer, and also a moulding obtainable by polymerization from an inventive alpha-alkoxysilane-terminated prepolymer.Type: GrantFiled: September 25, 2012Date of Patent: September 13, 2016Assignee: Covestro Deutschland AGInventor: Jan Schönberger
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Patent number: 9364577Abstract: The invention relates to a specific composition comprising A) isocyanate-functional prepolymers obtainable by reaction of A1) aliphatic diisocyanates with A2) di- to hexa-functional polyalkylene oxides having an ethylene oxide content of 50 to 100 mol %, based on the total amount of the oxyalkylene groups present, B) an aqueous polyurethane suspension, an aqueous polyacrylate suspension or aqueous silica sols, especially for production of hydrophilic, aliphatic polyurethane foams. The invention further provides a process for producing a hydrophilic, aliphatic polyurethane foam, based on the inventive composition, a polyurethane foam obtainable by the process and a wound dressing comprising the polyurethane foam.Type: GrantFiled: April 30, 2012Date of Patent: June 14, 2016Assignee: Covestro Deutschland AGInventors: Meike Niesten, Sebastian Dörr, Sascha Plug, Jan Schönberger
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Publication number: 20140255373Abstract: The present invention relates to an alpha-alkoxysilane-terminated prepolymer preparable by reaction of at least one polyether polyol, of a polyisocyanate and of an alpha-alkoxysilane having at least one isocyanate-reactive group, said polyether polyol having a weight average of 500 to 7000 g/mol and having ethylene oxide and propylene oxide units, the proportion of ethylene oxide units being up to 50% by weight based on the polyether polyol. The invention further provides a process for preparing an inventive alpha-alkoxysilane-terminated prepolymer, a composition, a multicomponent system and a spray can comprising an inventive alpha-alkoxysilane-terminated prepolymer, and also a moulding obtainable by polymerization from an inventive alpha-alkoxysilane-terminated prepolymer.Type: ApplicationFiled: September 25, 2012Publication date: September 11, 2014Applicant: Bayer Intellectual Property GmbHInventor: Jan Schönberger
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Publication number: 20140234283Abstract: The present invention relates to an isocyanate-free multicomponent system, especially for production of foams for medical products such as wound dressings, comprising at least two separate components, the first component comprising at least one alkoxysilane-terminated prepolymer and the second component an aqueous component, and the aqueous component having a pH of 4.0 to 9.5 at 20 DEG C.Type: ApplicationFiled: September 24, 2012Publication date: August 21, 2014Applicant: Bayer Intellectual Property GmbHInventor: Jan Schönberger
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Publication number: 20140234284Abstract: The present invention relates to an isocyanate-free multi-component system, in particular for medical uses such as foamable wound coverings, with at least two separate components, wherein the first component comprises at least one alkoxysilane-terminated prepolymer and the second component comprises an aqueous component, wherein the aqueous component is a polyurethane dispersion.Type: ApplicationFiled: September 24, 2012Publication date: August 21, 2014Applicant: Bayer Intellectual Property GmbHInventors: Jan Schönberger, Sebastian Dörr
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Publication number: 20140107243Abstract: The invention relates to a specific composition comprising A) isocyanate-functional prepolymers obtainable by reaction of A1) aliphatic diisocyanates with A2) di- to hexa-functional polyalkylene oxides having an ethylene oxide content of 50 to 100 mol %, based on the total amount of the oxyalkylene groups present, B) an aqueous polyurethane suspension, an aqueous polyacrylate suspension or aqueous silica sols, especially for production of hydrophilic, aliphatic polyurethane foams. The invention further provides a process for producing a hydrophilic, aliphatic polyurethane foam, based on the inventive composition, a polyurethane foam obtainable by the process and a wound dressing comprising the polyurethane foam.Type: ApplicationFiled: April 30, 2012Publication date: April 17, 2014Applicant: Bayer Intellectual Property GmbHInventors: Meike Niesten, Sebastian Dörr, Sascha Plug, Jan Schönberger
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Patent number: 8629195Abstract: The invention relates to a process for producing polyurethane foams, by frothing and drying mixtures of specific polyurethane dispersions and crosslinkers.Type: GrantFiled: April 17, 2012Date of Patent: January 14, 2014Assignee: Bayer MaterialScience AGInventors: Jan Schönberger, Michael Mager, Thorsten Rische, Sebastian Dörr, Thomas Feller, Michael Heckes, Melita Dietze, Burkhard Fugmann
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Publication number: 20130136785Abstract: The invention relates to a wound dressing, comprising a liquid-absorbing substrate having active substance depots contained therein, wherein the active substance depots comprise particles of at least one active substance which are encapsulated in a silicone shell. The invention further relates to a wound dressing according to the invention for use as a means for treating wounds and to the use of a wound dressing according to the invention for producing a means for treating wounds.Type: ApplicationFiled: February 8, 2011Publication date: May 30, 2013Applicant: Bayer Intellectual Property GmbHInventors: Jan Schönberger, Michael Mager, Heike Heckroth, Doris Klee, Mona Wambach, Christoph Suschek
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Publication number: 20130035235Abstract: The present invention relates to aqueous polyurethane dispersions for sealing teats of animal mammary glands.Type: ApplicationFiled: December 6, 2010Publication date: February 7, 2013Applicant: Bayer Intellectual Property GmbHInventors: Sebastian Dörr, Heike Heckroth, Jan Schönberger, Robrecht Froyman, Han-Robert Hehnen, Kristine Fraatz, Hans-Otto Werling
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Publication number: 20120232006Abstract: The invention relates to a process for producing polyurethane foams, by frothing and drying mixtures of specific polyurethane dispersions and crosslinkers.Type: ApplicationFiled: April 17, 2012Publication date: September 13, 2012Applicant: Bayer MaterialScience AGInventors: Jan Schönberger, Michael Mager, Thorsten Rische, Sebastian Dörr, Thomas Feller, Michael Heckes, Melita Dietze, Burkhard Fugmann
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Publication number: 20110275728Abstract: The invention relates to a method for the production of polyurethane foams, wherein a composition containing an anionic and a cationic polyurethane dispersion is expanded and dried.Type: ApplicationFiled: January 13, 2010Publication date: November 10, 2011Applicant: Bayer MaterialScience AGInventors: Jan Schönberger, Sebastian Dörr
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Publication number: 20110275757Abstract: The present invention relates to novel, high molecular weight surfactants based on polyurethanes for use in coatings, adhesives or sealants, for example.Type: ApplicationFiled: January 13, 2010Publication date: November 10, 2011Applicant: Bayer MaterialScience AGInventors: Jan Schönberger, Sebastian Dörr
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Publication number: 20110184080Abstract: The present invention relates to a process for preparing a hydrophilic aliphatic polyurethane foam which includes providing, curing, and foaming a composition comprising: an isocyanate-functional prepolymer having a weight fraction of low molecular weight aliphatic diisocyanates of below 1.0% by weight based on the prepolymer, obtained by reaction of a low molecular weight aliphatic diisocyanate having a molar mass of 140 to 278 g/mol with a di- to hexafunctional polyalkylene oxide having an OH number of 22.5 to 112 mg KOH/g and an ethylene oxide content of 50 to 100 mol %; optionally a heterocyclic 4-ring or 6-ring oligomer of low molecular weight aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; water; optionally a catalyst; a C8-C22 monocarboxylic acid or its ammonium or alkali metal salt or a C12-C44 dicarboxylic acid or its ammonium or alkali metal salt; optionally a surfactant; and optionally a mono- or polyhydric alcohol.Type: ApplicationFiled: June 26, 2009Publication date: July 28, 2011Applicant: Bayer MaterialScience AGInventors: Jan Schönberger, Burkhard Köhler, Peter Haas, Meike Niesten
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Publication number: 20110171277Abstract: The present invention relates to a layered composite which includes a foam layer and a cover layer. The cover layer includes a thermoplastic polymer and is at least partly bonded directly to the foam layer. The foam layer includes a polyurethane foam obtained by frothing and drying a composition that includes an aqueous, anionically hydrophilicized polyurethane dispersion.Type: ApplicationFiled: September 8, 2009Publication date: July 14, 2011Applicant: Bayer MaterialScience AGInventor: Jan Schönberger
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Publication number: 20110160633Abstract: The present invention relates to a process for producing shaped articles comprising, acting on a foam layer in a first region with a pressure of from 0 to 150 bar at a temperature of from 0° C. to less than or equal to 200° C., whereby the foam layer is compressed in the first region to greater than 12.5% to 100% of its original volume; acting on the foam layer in a second region with a pressure of from 50 to 150 bar at a temperature of from 100° C. to 200° C., whereby the foam layer is compressed in the second region from greater than 0% to 12.5% of its original volume; and wherein the foam layer comprises in the first region and the second region a polyurethane foam which is obtained by foaming and drying a composition comprising an aqueous, anionically hydrophilicized polyurethane dispersion.Type: ApplicationFiled: August 17, 2009Publication date: June 30, 2011Applicant: Bayer MaterialScience AGInventors: Jan Schönberger, Manfred Jordan, Michal Sabo, Bernd Mayer
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Publication number: 20090263431Abstract: The invention relates to a process for producing polyurethane foams for wound management wherein a composition containing a polyurethane dispersion and specific coagulants is frothed and dried.Type: ApplicationFiled: October 2, 2008Publication date: October 22, 2009Applicant: BAYER INNOVATION GMBHInventors: Burkhard Fugmann, Melita Dietze, Thorsten Rische, Michael Mager, Michael Heckes, Daniel Rudhardt, Rolf Gertzmann, Jan Schonberger, Sebastian Dorr
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Publication number: 20090214651Abstract: The invention relates to a process for producing polyurethane foams, by frothing and drying specific polyurethane dispersions.Type: ApplicationFiled: October 2, 2008Publication date: August 27, 2009Applicant: BAYER INNOVATION GMBHInventors: Burkhard FUGMANN, Melita Dietze, Michael Mager, Thorsten Rische, Sebastian Dorr, Thomas Feller, Michael Heckes, Jan Schonberger
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Publication number: 20090148395Abstract: The present invention relates to biomedical foam articles for the wound sector which are formed by spraying a polymeric dispersion onto a wound. The polymeric dispersion being sprayed onto a wound surface forms a three-dimensional body which conforms to the spatial shape of the wound and which, as well as covering the wound surface, ensures a complete and accurately fitted packing of the wound in the depth dimension as well as the other dimensions. The biomedical foam articles of the present invention are particularly useful for treating chronic wounds.Type: ApplicationFiled: October 2, 2008Publication date: June 11, 2009Applicant: BAYER INNOVATION GMBHInventors: Burkhard Fugmann, Melita Dietze, Michael Mager, Thorsten Rische, Michael Heckes, Daniel Rudhardt, Rolf Gertzmann, Jan Schonberger, Sebastian Dorr