Patents by Inventor Wolfgang Heinz Mueller

Wolfgang Heinz Mueller 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).

  • Bromo-propanol derivatives as flame retardants
    Patent number: 3962246
    Abstract: The present invention concerns a novel method of flame-proofing flammable material which comprises treating said material with a compound of the formula: ##EQU1## WHEREIN N IS 1 OR 2, AND R, when n is 1, is a radical of the formula ##EQU2## wherein R.sub.1 and R.sub.2 are substituents e.g. alkyl, or R.sub.1 and R.sub.2, together with the nitrogen atom, form a heterocyclic ring or R, when n is 2, is a radical of the formula ##EQU3## wherein R.sub.1 and R.sub.4 are substituents e.g. alkyl and R.sub.3 is a hydrocarbon bridge e.g. alkylene, or R.sub.1, R.sub.2 and R.sub.4, together with the nitrogen atoms to which they are bound, form a heterocyclic ring, or a group of the formula ##SPC1##Wherein m is 1 to 5, and novel compounds (i.e. when n is 2) useful as flame-proofing agents.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: June 8, 1976
    Assignee: Sandoz Ltd.
    Inventors: Peter Borer, Hans-Werner Finck, Horst Mayerhoefer, Urs Sollberger, Wolfgang Heinz Mueller