Patents by Inventor Avraham Teuerstein

Avraham Teuerstein 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).

  • Flame retardant plastic materials and method for producing same
    Patent number: 4965021
    Abstract: Granular flame retardant agents are disclosed which incorporate halogenated organic flame-retardant compounds, without any binders. The granular agents may further contain desired additives and organic or inorganic flame-retardant synergistic materials. The granular agents are dust-free and are usefully employed in a method for imparting flame-retardant properties to flammable plastic materials. A process for the preparation of the granular flame retardant agents of the invention by cold compaction is also described.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: October 23, 1990
    Assignee: Bromine Compounds Limited
    Inventors: Pierre Georlette, Hanoch Goren, Shaul Shmilowitz, Avraham Teuerstein
  • Granular flame retardant agents and process for their preparation
    Patent number: 4849134
    Abstract: Granular flame retardant agents are disclosed which incorporate halogenated organic flame-retardant compounds, without any binders. The granular agents may further contain desired additives and organic or inorganic flame-retardant synergistic materials. The granular agents are dust-free and are usefully employed in a method for imparting flame-retardant properties to flammable plastic materials. A process for the preparation of the granular flame retardant agents of the invention by cold compaction is also described.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: July 18, 1989
    Assignee: Bromine Compounds Limited
    Inventors: Pierre Georlette, Hanoch Goren, Shaul Shmilowitz, Avraham Teuerstein
  • Flame retardant polymer compositions
    Patent number: 4606852
    Abstract: Normally flammable organic polymers are rendered flame retardant by the incorporation of compounds corresponding to the formula: ##STR1## wherein each X is independently Br or Cl. The normally flammable organic polymers are selected from polyolefin, such as polypropylene, epoxy resins, unsaturated polyesters and styrene-based resins. The sulfite ester of tribromo neopentyl alcohol is preferred.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: August 19, 1986
    Assignee: Bromine Compounds Ltd.
    Inventors: Avraham Teuerstein, Michael Rumack, Shaul Yanai
  • Sulfur-containing halogenated esters of neopentyl alcohol and methods for their preparation
    Patent number: 4592873
    Abstract: The present invention relates to novel compounds, useful as flame retardants for normally flammable organic polymers, which correspond to the formula: ##STR1## wherein each X is independently Br or Cl. The novel compounds may be prepared by the reaction of halogenated neopentyl alcohol with thionyl chloride.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: June 3, 1986
    Assignee: Bromine Compounds, Ltd.
    Inventors: Avraham Teuerstein, Rubin Scharia, Milon Sprecher