Patents Represented by Attorney S. S. Blight

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  • Preparation of 4,4-dihydroxydiphenyl ethers
    Patent number: 4306094
    Abstract: Substituted and unsubstituted 1,4-dihydroxybenzenes are reacted in the presence of a cation exchange resin catalyst and an inert solvent to form the corresponding 4,4'-dihydroxydiphenyl ethers.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: December 15, 1981
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Raymond J. Shozda