Patents by Inventor Marc Heerbrant

Marc Heerbrant 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).

  • PENCILS, METHOD OF PREPARATION AND USE
    Publication number: 20130121747
    Abstract: The present invention relates to a pencil comprising a core within a barrel, wherein the band composition consists of (a) at least one styrene-butadiene copolymer, (b) at least one styrene-butadiene-styrene block copolymer, (c) at least one polymer selected from the group consisting of styrene polymer, styrene-acrylonitrile polymer, acrylonitrile-butadiene-styrene polymer, acrylic-styrene-methylmethacrylate copolymer, or a combination thereof; and optionally (d) at least one additive selected from the group consisting of a filler, a wax, a porogen, a blowing agent, a foaming agent, a coloring agent, or a combination thereof. The present invention also relates to a method for the preparation of said pencil and to the use thereof.
    Type: Application
    Filed: May 26, 2011
    Publication date: May 16, 2013
    Applicants: CHEVRON PHILLIPS CHEMICALS COMPANY LP, UNIVERSITE CATHOLIQUE DE LOUVAIN
    Inventors: Jean-Jacques Biebuyck, Daniel Daoust, Michel Sclavons, Marc Heerbrant