Patents by Inventor Richard Peterman

Richard Peterman 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).

  • POLYCARBONATE COMPOSITIONS HAVING IMPROVED WATER RESISTANCE AND RELATED METHODS
    Publication number: 20130090419
    Abstract: The present invention relates to compositions containing a polycarbonate including a bisphenol compound and an effective amount of a bishaloformate component present in an amount sufficient to reduce the average unbound bisphenol compound level found in water after immersion in deionized water for two weeks at 40° C. of the composition to less than about 20 ppb. Also provided are methods for increasing the water resistance of a polycarbonate composition. The method involves adding an effective amount of a bishaloformate component to the polycarbonate composition such that the polycarbonate composition has an average unbound bisphenol compound level found in water after immersion in deionized water for two weeks at 40° C. of less than about 20 ppb.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: Bayer MaterialScience LLC
    Inventors: Rick L. Archey, James P. Mason, Pierre Moulinie, Richard Peterman, Mary Ann Wittig