Patents by Inventor Hermann Brandi

Hermann Brandi 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).

  • Patent number: 4914144
    Abstract: A flameproof, halogen-free thermoplastic molding material contains, based on the molding material consisting of A, B, C, D and E,(A) 40 to 95% by weight of a thermoplastic halogen-free aromatic polycarbonate based on a diphenol,(B) from 5 to 30% by weight of one or more halogen-free graft polymers obtained from, based on B,(b.sub.1) an elastomer (rubber), which accounts for from 40 to 80% by weight, and(b.sub.2) a graft shell on this elastomer which accounts for from 20 to 60% by weight,(C) from 5 to 50% by weight of one or more halogen-free thermoplastic copolymers consisting of, based on C, from 50 to 95% by weight of styrene, .alpha.-methylstyrene, styrene which is substituted in the nucleus, methyl methacrylate or a mixture of these, and from 50 to 5% by weight of (meth)acrylonitrile, methyl methacrylate, maleic anhydride, N-substituted maleimide or a mixture of these,(D) 1 to 25% by weight of one or more halogen-free phosphorus compounds of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: April 3, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Muehlbach, Graham E. McKee, Hermann Brandi, Dieter W. Blum