Patents by Inventor Herbert F. Mazeke

Herbert F. Mazeke 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).

  • Film-forming olefinic nitrile polymer latex and method of preparing same
    Patent number: 4504605
    Abstract: A stable aqueous latex of a copolymer containing at least about 40 percent by weight of a polymerized olefinic unsaturated nitrile is described. The copolymer comprises a main polymer core of from about 40 to 100 percent by weight of the polymerized nitrile and from about 0 to about 60 percent by weight of at least one other polymerized olefin monomer, said main polymer core being overpolymerized with a copolymer comprising a major proportion of a polymerized acrylate and from about one to 40 percent by weight of a polymerized olefinic unsaturated nitrile. A two-step method for preparing such a latex also is described. The latices of the invention are useful in forming films at low temperatures, and the minimum film forming temperature can be regulated by the selection of the particular components and the relative amounts of the components used to form the latices.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: March 12, 1985
    Assignee: The Standard Oil Company
    Inventors: June T. Duke, Herbert F. Mazeke, Dorothy C. Prem
  • Mercaptan activation by acid in the copolymerization of acrylonitrile
    Patent number: 4082818
    Abstract: Molecular weight control is achieved in the production of acrylonitrile copolymers by means of an acid-activated mercaptan chain transfer agent.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: April 4, 1978
    Assignee: The Standard Oil Company
    Inventors: Gerald P. Coffey, Herbert F. Mazeke
  • Process of polymerizing acrylonitrile copolymers employing terpinolene or gamma terpinene as a chain modifier
    Patent number: 4081592
    Abstract: Acrylonitrile copolymers having controlled molecular weight are prepared using terpinolene or gamma terpinene as chain length modifier.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: March 28, 1978
    Assignee: The Standard Oil Company
    Inventors: Brandford E. Giddings, Gerald P. Coffey, William M. Giffen, Jr., Herbert F. Mazeke