Patents by Inventor Steven Michael Krupinski

Steven Michael Krupinski 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: 11939532
    Abstract: The present application provides a method and a system for recycling a polymer. The method includes introducing polymer into a primary melting extruder, producing a polymer melt that is combined with a fluid oil to at least partially dissolve the polymer melt. A secondary mixing extruder mixes these to form a polymer solution that is introduced into a refinery oil stream, producing a polymer-comprising oil stream, which is fed into a refinery process unit. The system includes a primary melting extruder for forming a polymer melt from polymer. A secondary mixing extruder receives the polymer melt. One or more hydrocarbon inflow conduits for providing a fluid oil to the primary melting extruder and/or the secondary mixing extruder are configured to form a polymer solution from the fluid oil and the polymer melt. There is a feed system outlet for feeding the polymer solution to a refinery oil stream.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: March 26, 2024
    Assignee: Braskem S.A.
    Inventors: Robson Pablo Sobradiel Peguin, Steven Michael Krupinski, Kevin Richard Soucy, Jiahan Xie, Cid Miró Neto, Roberto Osorio Jiménez
  • Publication number: 20230235233
    Abstract: The present application provides a method and a system for recycling a polymer. The method includes introducing polymer into a primary melting extruder, producing a polymer melt that is combined with a fluid oil to at least partially dissolve the polymer melt. A secondary mixing extruder mixes these to form a polymer solution that is introduced into a refinery oil stream, producing a polymer-comprising oil stream, which is fed into a refinery process unit. The system includes a primary melting extruder for forming a polymer melt from polymer. A secondary mixing extruder receives the polymer melt. One or more hydrocarbon inflow conduits for providing a fluid oil to the primary melting extruder and/or the secondary mixing extruder are configured to form a polymer solution from the fluid oil and the polymer melt. There is a feed system outlet for feeding the polymer solution to a refinery oil stream.
    Type: Application
    Filed: January 25, 2023
    Publication date: July 27, 2023
    Applicant: Braskem S.A.
    Inventors: Robson Pablo Sobradiel Peguin, Steven Michael Krupinski, Kevin Richard Soucy, Jiahan Xie, Cid Miró Neto, Roberto Osorio Jiménez
  • Patent number: 10669413
    Abstract: A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cm3 to 0.6 g/cm3. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 2, 2020
    Assignee: Braskem America, Inc.
    Inventors: Kimberly Miller McLoughlin, William Scott Miller, Michael Robert Stephans, Steven Michael Krupinski
  • Patent number: 10584237
    Abstract: A propylene-based polymer composition is characterized by a melt strength at 190° C. of at least 20 cN, a melt drawability at 190° C. of at least 100 mm/s, and a flexural modulus at room temperature of at least 240,000 psi. The propylene-based polymer composition includes a propylene-based polymer resin having a crystallinity of at least 50% coupled with a poly(sulfonyl azide).
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: March 10, 2020
    Assignee: Braskem America, Inc.
    Inventors: Elliot Carnevale, Riley Stevens, Kimberly Miller McLoughlin, William Scott Miller, Michael Robert Stephans, Steven Michael Krupinski
  • Publication number: 20180022906
    Abstract: A propylene-based polymer composition is characterized by a melt strength at 190° C. of at least 20 cN, a melt drawability at 190° C. of at least 100 mm/s, and a flexural modulus at room temperature of at least 240,000 psi. The propylene-based polymer composition includes a propylene-based polymer resin having a crystallinity of at least 50% coupled with a poly(sulfonyl azide).
    Type: Application
    Filed: January 15, 2016
    Publication date: January 25, 2018
    Inventors: Elliot Carnevale, Riley Stevens, Kimberly Miller McLoughlin, William Scott Miller, Michael Robert Stephans, Steven Michael Krupinski
  • Publication number: 20160222180
    Abstract: A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cm3 to 0.6 g/cm3. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Applicant: Braskem America, Inc.
    Inventors: Kimberly Miller McLoughlin, William Scott Miller, Michael Robert Stephans, Steven Michael Krupinski
  • Patent number: 7294676
    Abstract: Styrenic resin composition comprising a rubber modified styrene maleic anhydride copolymer and polybutene. The resin is prepared by several methods including adding polybutene into the reactor, or adding polybutene to the syrup exiting the reactor and prior to entering the devolatilizer, or compounding polybutene into the polymer in an extruder after the polymer exits the devolatilizer. The polybutene ranges from 0.1 to 8% by weight and has a number average molecular weight from 900 to 2500. The rubber ranges from 4% to 20% by weight and has a particle size from 0.1 micron to 11 microns. The resin can be extruded into sheet and thermoformed into an article or can be coextruded to produce a laminated article, which may be a container for packaged foods that can be heated in microwave ovens and which container has improved toughness, elongation, and heat distortion resistance properties.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: November 13, 2007
    Assignee: NOVA Chemicals Inc.
    Inventors: John Chi Hee Kwok, Richard Albert Cooper, Steven Michael Krupinski