Patents by Inventor Rudolf Bill

Rudolf Bill 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).

  • Flameproofing composition for polypropylene comprising a halogenated alkylaryl ether, an organo-tin compound and a sterically hindered phenol or bisphenol
    Patent number: 4532287
    Abstract: Compositions for flameproofing polymeric material comprising:(a) a halogenated alkylaryl ether, the aryl group of which may be substituted by halogen;(b) an organo-tin compound; and(c) a sterically hindered phenol or a bisphenol containing a sterically hindered --OH group on each phenyl.In this specification by the term "bisphenol" is meant a compound containing two phenol groups linked by a bridging group that is not attached to any other bisphenol groups and by the term "phenol" is meant compounds containing only a single phenol group.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: July 30, 1985
    Assignee: Sandoz Ltd.
    Inventors: Rudolf Bill, Rainer Wolf