Patents by Inventor Kerry D. Muhlestein

Kerry D. Muhlestein 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).

  • Process for the maleation of polyethylene waxes
    Patent number: 5551974
    Abstract: A process for the preparation of a maleated polyethylene wax is disclosed. This process entails mixing in the melt phase polyethylene, maleic anhydride, free radical initiator and a chain transfer agent m-di-isopropylbenzene. This process can be a continuous process either in a stirred reactor or twin screw extruder. The resulting maleated polyethylene wax has a high acid number, essentially no objectionable odor, and a Gardner color number less than 3.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: September 3, 1996
    Assignee: Eastman Chemical Company
    Inventors: Thomas D. Roberts, Kerry D. Muhlestein, Greg T. Slemons
  • Process for the maleation of polyethylene waxes
    Patent number: 5420303
    Abstract: A process for the preparation of a maleated polyethylene wax is disclosed. This process entails mixing in the melt phase polyethylene, maleic anhydride, free radical initiator and a chain transfer agent m-di-isopropylbenzene. This process can be a continuous process either in a stirred reactor or twin screw extruder. The resulting maleated polyethylene wax has a high acid number, essentially no objectionable odor, and a Gardner color number less than 3.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: May 30, 1995
    Assignee: Eastman Chemical Company
    Inventors: Thomas D. Roberts, Kerry D. Muhlestein, Greg T. Slemons