Patents by Inventor Delane Nagel Richardson

Delane Nagel Richardson 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).

  • Patent number: 8986582
    Abstract: This invention is to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: March 24, 2015
    Assignee: M & G USA Corporation
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Rebecca Spooner Korwin
  • Publication number: 20140217637
    Abstract: This invention is to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.
    Type: Application
    Filed: April 14, 2014
    Publication date: August 7, 2014
    Applicant: M & G USA Corporation
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Rebecca Spooner Korwin
  • Patent number: 8696960
    Abstract: This invention is to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: April 15, 2014
    Assignee: M & G USA Corporation
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Rebecca Spooner Korwin
  • Patent number: 8231937
    Abstract: Compartmentalized chips of at least two chemically similar crystallizable thermoplastic polymers each having a different intrinsic viscosity placed in separate zones are disclosed. These compartmentalized chips exhibit thermal characteristics that are different from the traditional technique of homogeneously combining the two materials into the chip. These compartmentalized chips in their amorphous, crystalline and solid phase polymerized forms exhibit a longer crystallization half time than the homogeneous mixture, thus permitting faster injection cycle times when compared to an equivalent homogenous mixture.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: July 31, 2012
    Assignee: M&G USA Corporation
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Gianluca Ferrari, Dan Gastaldo, Freddie L. Massey
  • Publication number: 20110266704
    Abstract: Compartmentalized chips of at least two chemically similar crystallizable thermoplastic polymers each having a different intrinsic viscosity placed in separate zones are disclosed. These compartmentalized chips exhibit thermal characteristics that are different from the traditional technique of homogeneously combining the two materials into the chip. These compartmentalized chips in their amorphous, crystalline and solid phase polymerized forms exhibit a longer crystallization half time than the homogeneous mixture, thus permitting faster injection cycle times when compared to an equivalent homogenous mixture.
    Type: Application
    Filed: July 8, 2011
    Publication date: November 3, 2011
    Inventors: Delane Nagel RICHARDSON, Edwin A. Sisson, Gianluca Ferrari, Dan Gastaldo, Freddie L. Massey
  • Patent number: 7981510
    Abstract: Compartmentalized chips of at least two chemically similar crystallizable thermoplastic polymers each having a different intrinsic viscosity placed in separate zones are disclosed. These compartmentalized chips exhibit thermal characteristics that are different from the traditional technique of homogeneously combining the two materials into the chip. These compartmentalized chips in their amorphous, crystalline and solid phase polymerized forms exhibit a longer crystallization half time than the homogeneous mixture, thus permitting faster injection cycle times.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: July 19, 2011
    Assignee: M&G USA Corporation
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Gianluca Ferrari, Dan Gastaldo, Freddie L. Massey
  • Publication number: 20110163473
    Abstract: This invention is to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.
    Type: Application
    Filed: February 25, 2011
    Publication date: July 7, 2011
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Rebecca Spooner Korwin
  • Patent number: 7931968
    Abstract: This invention is to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: April 26, 2011
    Assignee: M & G USA Corporation
    Inventors: Delane Nagel Richardson, Edwin A. Sisson, Rebecca Spooner Korwin