Patents by Inventor Calvin L Daniels

Calvin L Daniels 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).

  • Distillation of readily polymerizable ethylenically unsaturated compounds
    Patent number: 4050993
    Abstract: The present invention relates to a process for the distillation of readily polymerizable ethylenically unsaturated compounds comprising subjecting such compounds to distillation conditions in the presence of nitroso methylaniline as a polymerization inhibitor and in the absence of oxygen (air) and sulfur.
    Type: Grant
    Filed: September 11, 1972
    Date of Patent: September 27, 1977
    Assignee: Cosden Oil & Chemical Company
    Inventor: Calvin L. Daniels
  • Production of polybutene with static mixer
    Patent number: 3991129
    Abstract: Fresh feed of C.sub.1 -C.sub.5 refinery gases containing predominantly polymerizable butenes are rapidly mixed and diluted with Friedel-Crafts catalyst and recycle reaction mixture in a static mixer before passing to the polymerization reaction column whereby the temperature is more readily controlled to a constant value to produce polybutene of more constant quality in higher yield and with less catalyst loss.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: November 9, 1976
    Assignee: Cosden Technology, Inc.
    Inventor: Calvin L Daniels