Patents Represented by Attorney Wayne Nacker

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  • Cationic polymerization of cyclic ethers
    Patent number: 4988797
    Abstract: Cyclic ethers having 4 and 5 member rings are polymerized with a alcohol initiator and an acid catalyst. The acid catalyst is used at a molar ratio relative to hydroxyl groups of the alcohol initiator of between about 0.05:1 and about 0.5:1.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: January 29, 1991
    Assignee: Thiokol Corporation
    Inventors: Robert B. Wardle, Jerald C. Hinshaw