Patents by Inventor Raymond Boreng

Raymond Boreng 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).

  • Method for production of crosslinked plastic foam
    Patent number: 5300533
    Abstract: A method for production of a crosslinked, foamed vinyl chloride containing polymer, by adding a blowing agent to a copolymer produced by a copolymerisation of a monomer composition comprising vinyl chloride and glycidyl containing monomer, and optionally other monomers, foaming the copolymer, where the decomposition products of the blowing agent or decomposition products of reaction produces from the blowing agent, are chemically reactive with epoxy groups of the copolymer or its reaction products, and crosslinking the copolymer when the blowing agent or the reaction product of the blowing agent is decomposed.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: April 5, 1994
    Assignee: Norsk Hydro a.s.
    Inventors: Roger Dahl, Steinar Pedersen, Raymond Boreng