Patents by Inventor Christer Hans Bergstrom

Christer Hans Bergstrom 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).

  • Amorphous olefin co/ter-polymers
    Patent number: 6054543
    Abstract: Amorphous and impact resistant co/ter-polymer made from olefins and aryl-substituted cyclic monomers by polymerizing using a catalyst, wherein the substituent is a phenyl- or indanyl-group and the catalyst is a metallocene-catalyst. Preferably said aryl-substituted cyclic monomer is phenyl-norbomene (5-phenyl-bicylo-2,2,1-hept-2-ene) or indanyl-norbomene (1,4-methano-1,4,4a,9a-tetrahydrofluorence).
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: April 25, 2000
    Assignee: Optatech Corporation
    Inventors: Christer Hans Bergstrom, Jukka Seppala, Juhana Ruotoistenmaki, Tapio Hase, Sari Paavola, Lars-Olof Pietila, Lisbeth Ahjopalo