Patents by Inventor Stephanie C. Barthe

Stephanie C. Barthe 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).

  • Polyamide 6 resins containing a low level of polyamide 66 comonomer
    Patent number: 10442928
    Abstract: Compositions of polyamide resins containing a low level of polyamide 66 comonomer are provided, which are useful in producing blown films. A method of forming a blown film includes: extruding a polyamide copolymer to form a polyamide film. The polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate where the caprolactam comprises from 85 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: October 15, 2019
    Assignee: AdvanSix Resins & Chemicals LLC
    Inventors: Kuil Park, Simon J. Porter, Stephanie C. Barthe, Haoyu Liu, Veera Nelliappan
  • POLYAMIDE 6 RESINS CONTAINING A LOW LEVEL OF POLYAMIDE 66 COMONOMER
    Publication number: 20180030271
    Abstract: Compositions of polyamide resins containing a low level of polyamide 66 comonomer are provided, which are useful in producing blown films. A method of forming a blown film includes: extruding a polyamide copolymer to form a polyamide film. The polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate where the caprolactam comprises from 85 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.
    Type: Application
    Filed: July 14, 2017
    Publication date: February 1, 2018
    Inventors: Kuil Park, Simon J. Porter, Stephanie C. Barthe, Haoyu Liu, Veera Nelliappan
  • Process for preparing ammonium sulfate nitrate
    Patent number: 9464008
    Abstract: Ammonium sulfate nitrate double salts may be produced using a process that result in complete or nearly complete conversion to the 2:1 double salt. In some embodiments, the disclosure pertains to methods of controlling moisture content during the production process.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: October 11, 2016
    Assignee: Honeywell International Inc.
    Inventors: Stephanie C. Barthe, James A. Kweeder, Maria A. Azimova, Raymond G. Wissinger, Christopher B. Pace, Joshua H. McGill, Keith D. Cochran, Andrew J. Howes
  • Method and apparatus for prilling with pressure control
    Patent number: 8652367
    Abstract: Methods and apparatus for prilling are provided which include dynamically controlling the pressure at the prill head for increased control over prill quality and size distribution. In one embodiment, the pressure of a headspace above a volume of liquid or slurry is regulated to maintain a more precise control of the pressure of the liquid or slurry at the prill head. In another embodiment, an axial upflow device is used to maintain a more precise control of the pressure of the liquid or slurry at the prill head.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 18, 2014
    Assignee: Honeywell International Inc.
    Inventors: David W. Donnick, Stephanie C. Barthe, Gregory A. Cleotelis, Andrew J. Howes, James A. Kweeder, Raymond G. Wissinger
  • METHOD AND APPARATUS FOR PRILLING WITH PRESSURE CONTROL
    Publication number: 20130241093
    Abstract: Methods and apparatus for prilling are provided which include dynamically controlling the pressure at the prill head for increased control over prill quality and size distribution. In one embodiment, the pressure of a headspace above a volume of liquid or slurry is regulated to maintain a more precise control of the pressure of the liquid or slurry at the prill head. In another embodiment, an axial upflow device is used to maintain a more precise control of the pressure of the liquid or slurry at the prill head.
    Type: Application
    Filed: February 8, 2013
    Publication date: September 19, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: David W. Donnick, Stephanie C. Barthe, Gregory A. Cleotelis, Andrew J. Howes, James A. Kweeder, Raymond G. Wissinger