Patents by Inventor James William Rosthauser

James William Rosthauser 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 production of carbodiimide modified organic isocyanates
    Patent number: 7030274
    Abstract: The present invention relates to an improved process for the production of carbodiimide modified organic isocyanate, preferably a polymethylene polyphenylisocyanate, and most preferably diphenylmethane diisocyanate. This process includes (1) neutralizing acidic impurities in an organic isocyanate, (2) partially carbodiimidizing isocyanate groups of the neutralized organic isocyanate, and (3) terminating the carbodiimidization reaction.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: April 18, 2006
    Assignee: Bayer MaterialScience LLC
    Inventors: James William Rosthauser, James Thomas Garrett, Jeffrey S. Bolton