Patents by Inventor Marcus Steinwegs

Marcus Steinwegs 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).

  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    Patent number: 7825276
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process and the use thereof for the preparation of blends with further isocyanates and for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: November 2, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Stefan Wershofen, Marcus Steinwegs
  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    Patent number: 7714148
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, and to a process for the preparation of blends of these isocyanates with additional isocyanate components and to a process for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: May 11, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Stefan Wershofen, Marcus Steinwegs
  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretonimine groups
    Patent number: 7662989
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, the preparation of blends with further isocyanates and the process of the preparation of prepolymers containing isocyanate groups and/or polyurethane plastics, preferably polyurethane foams, from these isocyanate mixtures.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: February 16, 2010
    Assignee: Bayer Materialscience AG
    Inventors: Stefan Wershofen, Marcus Steinwegs
  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretonimine groups
    Publication number: 20070167633
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, and to a process for the preparation of blends of these isocyanates with additional isocyanate components and to a process for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 19, 2007
    Inventors: Stefan Wershofen, Marcus Steinwegs, Manfred Schmidt
  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    Publication number: 20070155939
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, and to a process for the preparation of blends of these isocyanates with additional isocyanate components and to a process for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 5, 2007
    Inventors: Stefan Wershofen, Marcus Steinwegs
  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    Publication number: 20070155937
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process and the use thereof for the preparation of blends with further isocyanates and for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 5, 2007
    Inventors: Stefan Wershofen, Marcus Steinwegs
  • Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretonimine groups
    Publication number: 20070155938
    Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, the preparation of blends with further isocyanates and the process of the preparation of prepolymers containing isocyanate groups and/or polyurethane plastics, preferably polyurethane foams, from these isocyanate mixtures.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 5, 2007
    Inventors: Stefan Wershofen, Marcus Steinwegs