Patents by Inventor Sonny Jonsson

Sonny Jonsson 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).

  • Free radical polymerization method having reduced premature termination, apparatus for performing the method, and product formed thereby
    Publication number: 20060116436
    Abstract: A method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially constant radiation, the radiation being substantially without pulsation. The use of the substantially constant radiation without pulsation reduces premature termination of the polymerization. The substantially constant radiation can be the output of a lamp powered by a constant current, direct current power supply.
    Type: Application
    Filed: January 17, 2006
    Publication date: June 1, 2006
    Inventors: Jeffrey Okamitsu, A. David Harbourne, Sonny Jonsson, Rong Bao
  • Free radical polymerization method having reduced premature termination, apparatus for performing the method, and product formed thereby
    Patent number: 7037460
    Abstract: A method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially constant radiation, the radiation being substantially without pulsation. The use of the substantially constant radiation without pulsation reduces premature termination of the polymerization. The substantially constant radiation can be the output of a lamp powered by a constant current, direct current power supply.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: May 2, 2006
    Assignee: Fusion UV Systems, Inc.
    Inventors: Jeffrey K. Okamitsu, A. David P. Harbourne, Sonny Jonsson, Rong Bao
  • Free radical polymerization method having reduced premature termination, apparatus for performing the method, and product formed thereby
    Publication number: 20050032926
    Abstract: A method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially constant radiation, the radiation being substantially without pulsation. The use of the substantially constant radiation without pulsation reduces premature termination of the polymerization. The substantially constant radiation can be the output of a lamp powered by a constant current, direct current power supply.
    Type: Application
    Filed: August 31, 2004
    Publication date: February 10, 2005
    Inventors: Jeffrey Okamitsu, A. Harbourne, Sonny Jonsson, Rong Bao
  • Photopolymerization process employing a charge transfer complex without a photoinitiator
    Patent number: 5446073
    Abstract: Composition containing charge transfer complex from at least one unsaturated compound having an electron donor group and having an electron withdrawing group and being free of any photoinitiating compound is polymerized by being subjected to ultraviolet light.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: August 29, 1995
    Assignee: Fusion Systems Corporation
    Inventors: Sonny Jonsson, Per-Erik G. Sundell, William R. Schaeffer
  • Initiators for polymerization
    Patent number: 5223591
    Abstract: Initiators for cationic polymerization by thermal activation, photochemical activation (UV-irradiation) or activation by electron bombardment are compounds wherein a heterocyclic, aryl substituted or aryl ring is fused to a sulfonium moiety in combination with a non-nucleophilic anion. During the activation of the initiator, a carbon-sulfur bond is broken leading to formation of a sulfide and a carbonium ion within the same molecule. The carbonium ion initiates the polymerization.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: June 29, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Johan Nyander, Sonny Jonsson, Bjorn Elman, Ann-Britt Pettersson, Per-Erik Sundell, Sven Gothe, Jan-Erik Nystrom