Patents by Inventor Ernest Rudolph Kamens

Ernest Rudolph Kamens 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 preparing foamed solids using two or more azo compounds
    Patent number: 4101464
    Abstract: Cellular polymeric solids are made by mixing an acidulous or acidic polymerizable medium that is polymerizable and/or cross-linkable by a free radical mechanism (e.g. an unsaturated polyester) with an effective amount of two or more acid sensitive mono- or poly-azo compounds containing the group: ##STR1## wherein Y is an acid sensitive group (e.g.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: July 18, 1978
    Assignee: Pennwalt Corporation
    Inventors: Ernest Rudolph Kamens, Donald Milton Kressin, Harold Carl Lange, Ronald Edward MacLeay
  • Polymeric cellular structures
    Patent number: 4029615
    Abstract: Shaped cellular structures formed from media which are polymerizable and/or cross-linkable by free radical initiation to either a thermoplastic or thermosetting solid, process for production of such structures and the composition therefor. Process comprises preparation of composition by mixing an acid sensitive azo compound with an acidulous or acidic polymerizable medium, after which the composition is permitted to foam into a cellular structure of the desired shape.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: June 14, 1977
    Assignee: Pennwalt Corporation
    Inventors: Ernest Rudolph Kamens, Donald Milton Kressin, Harold Carl Lange, Ronald Edward MacLeay
  • Process for preparing foamed structures
    Patent number: 3993609
    Abstract: Shaped cellular structures formed from media which are polmerizable and/or cross-linkable by free radical initiation to either a thermoplastic or thermosetting solid, process for production of such structures and the composition therefor. Process comprises preparation of composition by mixing an acid sensitive azo compound with an acidulous or acidic polymerizable medium, after which the composition is permitted to foam into a cellular structure of the desired shape.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: November 23, 1976
    Assignee: Pennwalt Corporation
    Inventors: Ernest Rudolph Kamens, Donald Milton Kressin, Harold Carl Lange, Ronald Edward MacLeay