Patents by Inventor Steven E. Pamer

Steven E. Pamer 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 producing 2-halomethyl-1,3-cyclic acetal
    Patent number: 4532338
    Abstract: The yield and purity of 2-halomethyl-1,3-cyclic acetals is improved by subjecting the reaction product of 1,2-dihaloethyl acetate and aliphatic diol to alkaline hydrolysis. The resulting aqueous and organic phases are separated and the organic phase distilled to recover the 2-halomethyl-1,3-cyclic acetal product.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: July 30, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Steven E. Pamer, James A. Cook, Jr.
  • Unsaturated 1,3-dioxolane stabilized with aliphatic aldehyde hydrazone
    Patent number: 4466903
    Abstract: 2-Alkylidene-1,3-dioxolanes and 2-(1-alkylalkylidene)-1,3-dioxolanes are employed as acid acceptors in methylchloroform, trichloroethylene or mixtures thereof. The preferred acid acceptor is 2-methylene-1,3-dioxolane.In another aspect of the invention, aliphatic aldehyde hydrazone is employed to stabilize 2-alkylidene-1,3-dioxolane and 2-(1-alkylalkylidene)-1,3-dioxolane. The preferred aliphatic aldehyde hydrazone is acetaldehyde dimethylhydrazone.
    Type: Grant
    Filed: June 16, 1983
    Date of Patent: August 21, 1984
    Assignee: PPG Industries, Inc.
    Inventor: Steven E. Pamer
  • Process of preparation of substituted diphenyl ethers
    Patent number: 4424393
    Abstract: This invention relates to a process for preparing herbicidally active substituted diphenylethers. Also, this invention provides novel intermediates useful in the production of said diphenylethers.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: January 3, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Frederick F. Guzik, Steven E. Pamer, Sidney B. Richter
  • Corrosion inhibited solvent compositions
    Patent number: 4418231
    Abstract: 2-Alkylidene-1,3-dioxolanes and 2-(1-alkylalkylidene)-1,3-dioxolanes are employed as acid acceptors in methylchloroform, trichloroethylene or mixtures thereof. The preferred acid acceptor is 2-methylene-1,3-dioxolane.In another aspect of the invention, aliphatic aldehyde hydrazone is employed to stabilize 2-alkylidene-1,3-dioxolane and 2-(1-alkylalkylidene)-1,3-dioxolane. The preferred aliphatic aldehyde hydrazone is acetaldehyde dimethylhydrazone.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: November 29, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Steven E. Pamer