Patents by Inventor Carola Jaroszewski

Carola Jaroszewski 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).

  • Initiator composition for polymerizing unsaturated monomers
    Patent number: 6087458
    Abstract: An initiator composition for polymerizing unsaturated monomers, comprising a component (A) which is a mixture ofi) at least one salt of a metal in the second sub-group of the periodic table, optionally in solution in an aromatic solvent or in an .alpha.,.beta.-unsaturated ester, andii) at least one salt of a metal in the seventh and eighth sub-group of the periodic table, optionally in solution in an aromatic solvent or in an .alpha.,.beta.-unsaturated ester; anda component (B) which is at least one organic peroxy ester,wherein the components (A) and (B) are kept separate from one another until they are brought together to initiate polymerization of the unsaturated monomers.Also, polymerizable compositions containing the initiator composition together with polymerizable unsaturated monomers. The initiator composition can be used to homopolymerize and copolymerize various unsaturated monomers, such as methacrylic and acrylic acid esters, at lower temperatures.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: July 11, 2000
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Shin-ichi Nonaka, Rainer B. Frings, Carola Jaroszewski, Gerwald F. Grahe