Patents by Inventor Shyam Sundar Sathyanarayana

Shyam Sundar Sathyanarayana 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: 11958215
    Abstract: The invention relates to a method for manufacturing a pellet in a pellet mill, which method comprises the steps of (A) pressing a mixture for compaction by a roller through a nozzle to obtain a strand, and (B) comminuting the strand to obtain the pellet, wherein the mixture for compaction comprises (i) 87 to 97 wt. % of a polymer stabilizer, which is tris(2,4-ditert-butylphenyl) phosphite (CAS-No. 31570-04-4), and (ii) 3 to 13 wt. % of a processing aid, which is a propylene-ethylene copolymer and which possesses a melting enthalpy below 100 J/g at 101.32 kPa. The pellet is useful for a dust-free handling of its polymer stabilizer at a manufacturing of the stabilized polymer. Furthermore, a method for stabilizing a polymer, which is a polyolefin, a polystyrene or a mixture thereof, is disclosed, which comprises the dosing of the pellet to the polymer.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: April 16, 2024
    Assignee: BASF SE
    Inventors: Thomas Georg Gfroerer, Shyam Sundar Sathyanarayana, Yean Yik Geoerg, Florian Puch, Jennifer M. O'Sullivan, Heinz Herbst
  • Patent number: 11919202
    Abstract: The invention relates to a method for manufacturing a pellet in a pellet mill, which method comprises the steps of (A) pressing a mixture for compaction by a roller through a nozzle to obtain a strand, and (B) comminuting the strand to obtain the pellet, wherein the mixture for compaction comprises (i) 87 to 97 wt. % of a polymer stabilizer, which is tris(2,4-ditert-butylphenyl) phosphite (CAS-No. 31570-04-4), and (ii) 3 to 13 wt. % of a processing aid, which is a propylene-ethylene copolymer and which possesses a melting enthalpy below 100 J/g at 101.32 kPa. The pellet is useful for a dust-free handling of its polymer stabilizer at a manufacturing of the stabilized polymer. Furthermore, a method for stabilizing a polymer, which is a polyolefin, a polystyrene or a mixture thereof, is disclosed, which comprises the dosing of the pellet to the polymer.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: March 5, 2024
    Assignee: BASF SE
    Inventors: Thomas Georg Gfroerer, Shyam Sundar Sathyanarayana, Yean Yik Geoerg, Florian Puch, Jennifer M. O'Sullivan, Heinz Herbst
  • Publication number: 20240009710
    Abstract: A computer-implemented method can be used for controlling sorting of plastic compounds. The method involves providing a computer-based database containing entries on a plurality of markers each identifying a specific plastic compound; receiving scan data from a sample of a plastic compound; identifying a marker in the sample of the plastic compound based on the received scan data and the plurality of markers of the database; and sorting of plastic compounds based on the identified marker of the sample of the plastic compound.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 11, 2024
    Applicant: BASF SE
    Inventors: Gazi TUERKOGLU, Marina Grace Dickens Leed, Wilhelm Keller, Martina Solfrank, Robert Anthony Keller, Oliver Reich, David Leino Calleja, Li Noi Lilian Hoh, Oliver Kuhn, Shyam Sundar Sathyanarayana, Kai Pahnke, Tobias Eltze, Christian Beil
  • Publication number: 20240013128
    Abstract: A computer-implemented method can be used for determining a sustainability score. The method involves providing a computer-based database containing entries on a plurality of markers each identifying a specific plastic compound; receiving scan data from a sample of a plastic compound; identifying a marker in the sample of the plastic compound based on the received scan data and the plurality of markers of the database; and determining a sustainability score based on the identified marker of the sample of the plastic compound.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 11, 2024
    Applicant: BASF SE
    Inventors: Marina Grace Dickens Leed, Gazi Tuerkoglu, Wilhelm Keller, Martina Solfrank, Robert Anthony Keller, Oilver Reich, David Leino Calleja, Li Noi Lilian Hoh, Oliver Kuhn, Shyam Sundar Sathyanarayana, Kai Pahnke, Tobias Eltze, Christian Beil
  • Publication number: 20230302686
    Abstract: The invention relates to a method for manufacturing a pellet in a pellet mill, which method comprises the steps of (A) pressing a mixture for compaction by a roller through a nozzle to obtain a strand, and (B) comminuting the strand to obtain the pellet, wherein the mixture for compaction comprises (i) 87 to 97 wt. % of a polymer stabilizer, which is tris(2,4-ditert-butylphenyl) phosphite (CAS-No. 31570-04-4), and (ii) 3 to 13 wt. % of a processing aid, which is a propylene-ethylene copolymer and which possesses a melting enthalpy below 100 J/g at 101.32 kPa. The pellet is useful for a dust-free handling of its polymer stabilizer at a manufacturing of the stabilized polymer. Furthermore, a method for stabilizing a polymer, which is a polyolefin, a polystyrene or a mixture thereof, is disclosed, which comprises the dosing of the pellet to the polymer.
    Type: Application
    Filed: September 7, 2020
    Publication date: September 28, 2023
    Inventors: Thomas Georg Gfroerer, III, Shyam Sundar Sathyanarayana, Yean Yik Geoerg, Florian Puch, Jennifer M. O'Sullivan, Heinz Herbst
  • Patent number: 11440231
    Abstract: The present invention relates to a process for the production of a reinforced polyamide (rP) in an extruder. In this process, a first mixture (M1), a second mixture (M2) and a third mixture (M3) are added into the extruder, and subsequently at least one carbon material is added to obtain a carbon containing polymerizable mixture (cpM) in the extruder. This carbon containing polymerizable mixture (cpM) is polymerized and subsequently devolatilized to obtain the reinforced polyamide (rP). Furthermore, the present invention relates to the reinforced polyamide (rP) obtainable by the inventive process.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: September 13, 2022
    Assignee: BASF SE
    Inventors: Florian Puch, Shyam Sundar Sathyanarayana, Yeonsuk Roh, Natalie Beatrice Janine Herle
  • Publication number: 20220249383
    Abstract: The present disclosure relates to a method for manufacturing a tablet including (A) filling a starting material, which is in a solid form, in a first open cavity, which is formed by a first punch and a die, to obtain a second open cavity, which is filled at least partly with the starting material, (B) closing the second open cavity by a second punch to obtain a first dosed cavity, (C) compressing the starting material at a compression temperature below 37° C. by moving at least one out of the first punch and the second punch to obtain a second closed cavity, which has a smaller volume than the first closed cavity, which results in formation of a trapped tablet of the starting material in the second closed cavity, (D) removing the trapped tablet to obtain the tablet, which has a tablet temperature below 37° C. directly after removal.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 11, 2022
    Inventors: Yean Yik Geoerg, Thomas Georg Gfroerer, Holger Ruckdaeschel, Shyam Sundar Sathyanarayana, Lothar Seidemann, Heinz Herbst
  • Patent number: 10865364
    Abstract: This invention relates to cleaning particles, methods for their preparation, cleaning compositions and their use for laundry cleaning of soiled substrates.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 15, 2020
    Assignee: BASF SE
    Inventors: Simon Kniesel, Philipp Kloke, Martina Schoemer, Shyam Sundar Sathyanarayana
  • Publication number: 20190202102
    Abstract: The present invention relates to a process for the production of a reinforced polyamide (rP) in an extruder. In this process, a first mixture (M1), a second mixture (M2) and a third mixture (M3) are added into the extruder, and subsequently at least one carbon material is added to obtain a carbon containing polymerizable mixture (cpM) in the extruder. This carbon containing polymerizable mixture (cpM) is polymerized and subsequently devolatilized to obtain the reinforced polyamide (rP). Furthermore, the present invention relates to the reinforced polyamide (rP) obtainable by the inventive process.
    Type: Application
    Filed: August 16, 2017
    Publication date: July 4, 2019
    Inventors: Florian Puch, Shyam Sundar Sathyanarayana, Yeonsuk Roh, Natalie Beatrice Janine Herle
  • Publication number: 20180208880
    Abstract: This invention relates to cleaning particles, methods for their preparation, cleaning compositions and their use for laundry cleaning of soiled substrates.
    Type: Application
    Filed: July 28, 2016
    Publication date: July 26, 2018
    Inventors: Simon Kniesel, Philipp Kloke, Martina Schoemer, Shyam Sundar Sathyanarayana