Patents by Inventor Mary G. Harscher

Mary G. Harscher 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).

  • Brominated diphenylalkane products and processes
    Patent number: 5457248
    Abstract: Described are processes for preparing brominated diphenylalkane products which are far whiter than prior known brominated diphenylalkane products. The resultant white brominated diphenylalkane products also form a part of the present invention, as do formulations incorporating the white brominated diphenylalkane products, and articles prepared therefrom.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: October 10, 1995
    Assignee: Great Lakes Chemical Corp.
    Inventors: Arthur G. Mack, Rastko I. Mamuzic, David C. Sanders, Richard S. Rose, Mary G. Harscher
  • N-substituted 5-phenyltetrazoles as high temperature blowing agents
    Patent number: 4774266
    Abstract: A process for the production of cellular products which comprises incorporating a blowing agent into rubber or a thermoplastic material uses as the blowing agent a tetrazole compound represented by the formula: ##STR1## in which R represents an alkyl, cycloalkyl, hydroxyalkyl, polyhydroxyalkyl, aryl, alkylaryl, aralkylene, alkenyl, alkenylaryl or alkenylaralkylene group.The novel blowing agents of the present invention include compounds which are liquids which may be directly incorporated into the molten rubber or thermoplastic material. The blowing agents of this invention are especially useful, as indicated, with polymers and copolymers that have high processing temperatures as they minimize polymer degradation and provide products with increased impact strengths.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: September 27, 1988
    Assignee: Olin Corporation
    Inventors: Max M. Boudakian, Kiran B. Chandalia, Eugene F. Rothgery, Mary G. Harscher