Patents by Inventor Charles James Reader

Charles James Reader 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).

  • Alkane diol foam controlling agents
    Patent number: 6762208
    Abstract: The present invention pertains to a method for controlling the foaming of a waterborne composition or an industrial process by the incorporation of a foam controlling agent. The method comprises utilizing as the foam controlling agent a compound of the formula: HOR1R3C—[CH2]n—CR2R4OH R1 and R2 are independently selected from the group of alkyl radicals having from 3 to 6 carbon atoms. R3 and R4 are independently alkyl radicals having from 1 to 2 carbon atoms. n is an integer from 1 to 6. The compound generates an initial (t=0 min.) or a final (t=10 min.) foamed density at least 30% greater than that of a 0.5 wt % aqueous solution of a 12 mole ethoxylate of a C12-C15 primary alcohol (C12-C15E12) when added at 0.2 wt % to the C12-C15E12 solution. The present invention also pertains to an aqueous composition comprising the foam controlling agent.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: July 13, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joel Schwartz, Charles James Reader, Wim Peter Stout, Yong Jin Lee, Christine Marie Kretz
  • Alkane diol foam controlling agents
    Publication number: 20030144365
    Abstract: The present invention pertains to a method for controlling the foaming of a waterborne composition or an industrial process by the incorporation of a foam controlling agent.
    Type: Application
    Filed: October 1, 2001
    Publication date: July 31, 2003
    Inventors: Joel Schwartz, Charles James Reader, Wim Peter Stout, Yong Jin Lee, Christine Marie Kretz