Patents by Inventor Laurel Glaser

Laurel Glaser 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).

  • Process for preparing 2,6-dichlorotoluene
    Patent number: 4721822
    Abstract: Liquid para-toluenesulfonyl chloride is reacted with chlorine gas at elevated temperatures in the presence of a catalytic amount of a Lewis acid catalyst, preferably antimony trichloride. Sulfuric acid is added then the reaction mixture is heated and subsequently cooled to about room temperature. Ammonium hydroxide is added then the reaction mixture is distilled to yield a substantially pure 2,6-dichlorotoluene.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: January 26, 1988
    Assignee: Stauffer Chemical Company
    Inventors: Andrea Leone-Bay, Peter E. Timony, Laurel Glaser