Patents by Inventor Raymond Isaac

Raymond Isaac 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 separating and drying thermoplastic particles under high pressure
    Patent number: 8079158
    Abstract: A process for feeding a slurry of thermoplastic synthetic polymer particles such as polyethylene terephthalate homopolymers and copolymers in combination with a liquid such as water at a liquid temperature greater than the normal boiling point of the liquid, under a pressure greater than the vapor pressure of the liquid at the liquid temperature, into a separation zone such as a centrifugal dryer, and within the separation zone: a. separating the liquid from the particles, and b. drying the particles; while under a high pressure equal to or greater than the vapor pressure of the liquid. There is also provided a process for decoupling the dried particles from the separation zone to an atmosphere having a pressure less than the vapor pressure of the liquid while maintaining the vapor pressure of the particles prior to decoupling equal to or above the vapor pressure of the liquid at the liquid temperature.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: December 20, 2011
    Assignee: Grupo Petrotemex, S.A. de C.V.
    Inventors: Michael Paul Ekart, Andrew S. Hudson, Raymond Isaac, Luciano Dalmacio Samitier
  • Crystallized pellet/liquid separator
    Patent number: 7875184
    Abstract: A process and apparatus which reduces the fines in a liquid discharge stream and/or increases the dryness of a solids discharge stream while under a pressure equal to or greater than the vapor pressure of the liquid.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: January 25, 2011
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Robert Lin, Raymond Isaac, Duane Alan Hall
  • Crystallized pellet/liquid separator
    Publication number: 20070062872
    Abstract: A process and apparatus which reduces the fines in a liquid discharge stream and/or increases the dryness of a solids discharge stream while under a pressure equal to or greater than the vapor pressure of the liquid. There is provided a process for separating particles such as polyethylene terephthalate or polyethylene naphthalate from a liquid in a slurry comprising: a. feeding a slurry comprising solid particles and a liquid into a within a separation zone maintained at a pressure equal to or greater than the vapor pressure of the liquid; b.
    Type: Application
    Filed: August 9, 2006
    Publication date: March 22, 2007
    Inventors: Kenny Parker, Robert Lin, Raymond Isaac, Duane Hall
  • Process for separating and drying thermoplastic particles under high pressure
    Publication number: 20060042113
    Abstract: A process for feeding a slurry of thermoplastic synthetic polymer particles such as polyethylene terephthalate homopolymers and copolymers in combination with a liquid such as water at a liquid temperature greater than the normal boiling point of the liquid, under a pressure greater than the vapor pressure of the liquid at the liquid temperature, into a separation zone such as a centrifugal dryer, and within the separation zone: a. separating the liquid from the particles, and b. drying the particles; while under a high pressure equal to or greater than the vapor pressure of the liquid. There is also provided a process for decoupling the dried particles from the separation zone to an atmosphere having a pressure less than the vapor pressure of the liquid while maintaining the vapor pressure of the particles prior to decoupling equal to or above the vapor pressure of the liquid at the liquid temperature.
    Type: Application
    Filed: May 23, 2005
    Publication date: March 2, 2006
    Inventors: Michael Ekart, Andrew Hudson, Raymond Isaac, Luciano Samitier