Patents Represented by Attorney R. J. Hicks

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  • Synthesis of polymers of vinyl ethers, 1,5-hexadiene and N-vinylcarbazole
    Patent number: 5439996
    Abstract: A process for the production of high molecular weight poly(vinyl ethers) and the like in which a selected monomer is polymerized in the presence of a metallocene-type catalyst is described. Vinyl ether monomers, N-vinylcarbazole and 1.5-10 hexadiene can be polymerized, in high yield using an initiator of the formula Cp*TiMe.sub.3 in the presence of a co-initiator of the formula B(C.sub.6 F.sub.5).sub.3. Novel dihydropyran polymers, such as poly 3,4-dihydropyran have also been produced.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: August 8, 1995
    Assignee: Queen's University at Kingston
    Inventors: Michael C. Baird, Qinyan Wang