Patents by Inventor Irwin A. Prager

Irwin A. Prager 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).

  • Blowing agents -bis(hydrocarbylsulfonyl) carbohydrazides
    Patent number: 4133832
    Abstract: Hydrocarbylsulfonyl carbohydrazides of the following structural formulae are disclosed for use as blowing agents: ##STR1## The compounds wherein the R groups are alkyl are novel, as are the polymeric products.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: January 9, 1979
    Assignee: Uniroyal, Inc.
    Inventors: Byron A. Hunter, Irwin A. Prager
  • Blowing agents-bis(hydrocarbylsulfonyl) carbohydrazides
    Patent number: 4096100
    Abstract: Hydrocarbylsulfonyl carbohydrazides of the following structural formulae are disclosed for use as blowing agents: ##STR1## The compounds wherein the R groups are alkyl are novel, as are the polymeric products.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: June 20, 1978
    Assignee: Uniroyal, Inc.
    Inventors: Byron A. Hunter, Irwin A. Prager