Patents by Inventor Eva Maria Roggentin

Eva Maria Roggentin 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).

  • Polyurethane-based protective coatings for rotor blades
    Patent number: 10131812
    Abstract: Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (?-?) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (?-?) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkylen
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 20, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bernd Kuehneweg, Björn Weber, Timothy N. Narum, Stuart E. Fores, Ian Robinson, Eva Maria Roggentin, Guido Hitschmann, Rainer Kurz
  • POLYURETHANE-BASED PROTECTIVE COATINGS FOR ROTOR BLADES
    Publication number: 20170306177
    Abstract: Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (???) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (???) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkyl
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: BERND KUEHNEWEG, BJÖRN WEBER, TIMOTHY N. NARUM, STUART E. FORES, IAN ROBINSON, EVA MARIA ROGGENTIN, GUIDO HITSCHMANN, RAINER KURZ
  • Polyurethane-based protective coatings for rotor blades
    Patent number: 9732252
    Abstract: Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (?-?) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (?-?) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkylen
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: August 15, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bernd Kuehneweg, Björn Weber, Timothy N. Narum, Stuart E. Fores, Ian Robinson, Eva Maria Roggentin, Guido Hitschmann, Rainer Kurz
  • POLYURETHANE-BASED PROTECTIVE COATINGS FOR ROTOR BLADES
    Publication number: 20150166831
    Abstract: Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (?-?) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (?-?) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkylen
    Type: Application
    Filed: May 15, 2012
    Publication date: June 18, 2015
    Applicant: 3M Innovative Properties Company
    Inventors: Bernd Kuehneweg, Björn Weber, Timothy N. Narum, Stuart E. Fores, Ian Robinson, Eva Maria Roggentin, Guido Hitschmann, Rainer Kurz