Patents by Inventor Allen Feinstein

Allen Feinstein 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).

  • Polyamide acids and polyesterimides from 1,3-adamantylene-bis-trimellitate dianhydrides
    Patent number: 4066622
    Abstract: Novel dianhydrides derived from trimellitic anhydride and adamantane diacetates are polymerized with a diamine to produce the corresponding polyamide, which is subsequently converted to the polyesterimide by heat treatment at temperatures above 500.degree. F.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: January 3, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventors: Allen Feinstein, Ellis K. Fields
  • 1,3-Adamantylene-bis-trimellitate dianhydrides
    Patent number: 3976665
    Abstract: Novel dianhydrides derived from trimellitic anhydride and adamantane diacetates are polymerized with a diamine to produce the corresponding polyamide, which is subsequently converted to the polyesterimide by heat treatment at temperatures above 500.degree.F.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Standard Oil Company (Indiana)
    Inventors: Allen Feinstein, Ellis K. Fields
  • Vapor phase conversion of aromatic esters to aromatic aldehydes
    Patent number: 3935265
    Abstract: A process for converting an aromatic methyl ester (methyl benzoate) to a corresponding aromatic aldehyde (benzaldehyde) by subjecting the ester to temperatures of 400.degree. to 500.degree.C and one atmosphere pressure for 3 to 100 seconds in the presence of a solid alumina catalyst.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: January 27, 1976
    Assignee: Standard Oil Company
    Inventors: Allen Feinstein, Ellis K. Fields