Patents by Inventor Ralph R. Shelley, Jr.

Ralph R. Shelley, Jr. 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).

  • Stable aqueous dispersions of mixed resins and process for use as coating compositions
    Patent number: 4289811
    Abstract: Aqueous dispersions of mixed resins are prepared by polymerizing in the presence of an aminoplast resin a mixture of polymerizable carboxylic acid monomers and other monomers, adding to the polymerization product an epoxy resin, adding ammonia or an amine to salt the acid groups and dispersing the resin mixture in water. The aqueous dispersions are useful as can coatings.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: September 15, 1981
    Assignee: Celanese Corporation
    Inventor: Ralph R. Shelley, Jr.
  • Epoxy resin compositions
    Patent number: 3947522
    Abstract: Epoxy resins modified with copolymers containing reactive groups such as -COOH are improved by vulcanizing the copolymer with an organic peroxide or sulfur.The resultant epoxy resins are useful in preparing adhesives with improved properties at elevated temperatures.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: March 30, 1976
    Assignee: The Dow Chemical Company
    Inventors: Ralph R. Shelley, Jr., James A. Clarke