Patents by Inventor Siddharth Ram Athreya

Siddharth Ram Athreya 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).

  • Publication number: 20230024065
    Abstract: IMPROVING RECYCLED PLASTICS AND METHODS THEREOF The present invention provides methods for reducing extractables from plastic articles made from recycled plastic. The method includes the steps of: (a) providing a plastic article in a chamber; and (b) providing a fluorination gas in the chamber, thereby exposing the plastic article to the fluorination gas.
    Type: Application
    Filed: January 28, 2022
    Publication date: January 26, 2023
    Inventors: Siddharth Ram Athreya, Subramanian Iyer, Jad Darsey
  • Patent number: 11448542
    Abstract: The present disclosure provides a dosing cap. In an embodiment, the dosing cap includes (A) a collar member having an annular skirt depending from a base. An inner surface of the annular skirt has a securing member for securing the collar member to a neck of a container. The base includes (i) at least one opening with a one-way valve permitting fluid flow in a first direction, and (ii) an air channel with a one-way valve permitting fluid flow in a second direction. The dosing cap includes (B) a cap member having an annular sidewall extending from a dispensing element. An inner surface of the annular sidewall has an attachment member adjustably attached to a reciprocal attachment member on an outer surface of the first sidewall. The dosing cap includes (C) a metering chamber formed by an enclosed volume between the cap member and the base. The dosing cap includes (D) the dispensing element permitting flow of a fluid from the metering chamber.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: September 20, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Pavan K. Valavala, Marc S. Black, Piyush Soni, Wenbo Xu, Hieu Truong, Sam L. Crabtree, Kumar N. Sanketh, Siddharth Ram Athreya, Amanda Craig
  • Publication number: 20220176599
    Abstract: An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising a high molecular weight component and a low molecular weight component.
    Type: Application
    Filed: May 29, 2020
    Publication date: June 9, 2022
    Inventors: Keran Lu, Yijian Lin, Mridula Kapur, Tian Lan, Stephanie M. Whited, John L. Sugden, Siddharth Ram Athreya
  • Patent number: 11345799
    Abstract: The present disclosure provides formulation. The formulation contains a high density polyethylene composition containing (i) a high molecular weight component including an ethylene/a-olefin copolymer, the high molecular weight component having a density from 0.924 to 0.930 g/cc and a high load melt index (121) from 0.3 to 0.9 g/10 min; and (ii) a low molecular weight component including an ethylene-based polymer selected from the group consisting of an ethylene homopolymer and an ethylene/a-olefin copolymer. The high density polyethylene composition has (a) a density from 0.950 to 0.956 g/cc; (b) a high load melt index (121) from 15 to 28 g/10 min; (c) an 121/12 of at least 85; (d) a notched constant tensile load failure time at 35% yield stress of greater than 90 hours; and (e) an environmental stress crack resistance (ESCR) F0 value, according to ASTM D1693—condition B (100% IGEPAL), of greater than 2,000 hours.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 31, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Stephanie M. Whited, Siddharth Ram Athreya, Mridula Kapur, Alexander Stolarz, Adriana Velasquez
  • Publication number: 20220145050
    Abstract: The present disclosure provides a composition. In an embodiment, the composition includes a polymer component and an odor suppressant. The polymer component includes (i) a post-consumer resin and (ii) optionally an olefin-based polymer. The composition further includes from 0.15 wt % to 15 wt % of the odor suppressant. The odor suppressant includes (i) from 0.05 wt % to 2 wt % of a metal oxide having a band gap greater than 5.0 electron volts (eV); and (ii) from 0.1 wt % to 13 wt % an acid copolymer. The ratio of metal oxide to acid copolymer is from 1:20 to 1:1. Weight percent is based on total weight of the composition.
    Type: Application
    Filed: February 18, 2020
    Publication date: May 12, 2022
    Inventors: Casey R. McAlpin, Arkady L. Krasovskiy, Kefu Sun, Scott T. Matteucci, Jill M. Martin, Siddharth Ram Athreya, Larry Shayne Green
  • Patent number: 11254107
    Abstract: Embodiments of the present disclosure include composites and flexible multilayer pipe liners comprising a fibrous layer; and a polyolefin backing layer comprising a blend of: (a) an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram, (b) a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.930 to 0.960 g/cc; (c) a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and (d) optionally, a fluoropolymer.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 22, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Dane Chang, Siddharth Ram Athreya
  • Publication number: 20210389166
    Abstract: The present disclosure provides a dosing cap. In an embodiment, the dosing cap includes (A) a collar member having an annular skirt depending from a base. An inner surface of the annular skirt has a securing member for securing the collar member to a neck of a container. The base includes (i) at least one opening with a one-way valve permitting fluid flow in a first direction, and (ii) an air channel with a one-way valve permitting fluid flow in a second direction. The dosing cap includes (B) a cap member having an annular sidewall extending from a dispensing element. An inner surface of the annular sidewall has an attachment member adjustably attached to a reciprocal attachment member on an outer surface of the first sidewall. The dosing cap includes (C) a metering chamber formed by an enclosed volume between the cap member and the base. The dosing cap includes (D) the dispensing element permitting flow of a fluid from the metering chamber.
    Type: Application
    Filed: October 14, 2019
    Publication date: December 16, 2021
    Inventors: Pavan K. Valavala, Marc C. Black, Piyush Soni, Wenbo Xu, Hieu Truong, Sam L. Crabtree, Kumar N. Sanketh, Siddharth Ram Athreya, Amanda Craig
  • Patent number: 10858505
    Abstract: The invention provides ethylene-based composition comprising a blend of an ultra-high molecular weight polyethylene having an intrinsic viscosity from 5 to 50 deciliters/gram; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: December 8, 2020
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Dane Chang, Siddharth Ram Athreya, Ronald Wevers
  • Publication number: 20200369009
    Abstract: Embodiments of the present disclosure include composites and flexible multilayer pipe liners comprising a fibrous layer; and a polyolefin backing layer comprising a blend of: (a) an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram, (b) a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.930 to 0.960 g/cc; (c) a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and (d) optionally, a fluoropolymer.
    Type: Application
    Filed: September 12, 2018
    Publication date: November 26, 2020
    Inventors: Dane Chang, Siddharth Ram Athreya
  • Patent number: 10844203
    Abstract: The invention provides a composition suitable for use in pipe applications, the composition comprising: an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram; a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.930 to 0.960 g/cc; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: November 24, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Dane Chang, Siddharth Ram Athreya, Ronald Wevers
  • Publication number: 20200299491
    Abstract: The present disclosure provides formulation. The formulation contains a high density polyethylene composition containing (i) a high molecular weight component including an ethylene/a-olefin copolymer, the high molecular weight component having a density from 0.924 to 0.930 g/cc and a high load melt index (121) from 0.3 to 0.9 g/10 min; and (ii) a low molecular weight component including an ethylene-based polymer selected from the group consisting of an ethylene homopolymer and an ethylene/a-olefin copolymer. The high density polyethylene composition has (a) a density from 0.950 to 0.956 g/cc; (b) a high load melt index (121) from 15 to 28 g/10 min; (c) an 121/12 of at least 85; (d) a notched constant tensile load failure time at 35% yield stress of greater than 90 hours; and (e) an environmental stress crack resistance (ESCR) F0 value, according to ASTM D1693-condition B (100% IGEPAL), of greater than 2,000 hours.
    Type: Application
    Filed: December 11, 2018
    Publication date: September 24, 2020
    Inventors: Stephanie M. Whited, Siddharth Ram Athreya, Mridula Kapur, Alexander Stolarz, Adrianna Velasquez
  • Patent number: 10738182
    Abstract: A molded article formed from a polymer composition, the polymer composition consisting essentially of: an ethylene homopolymer or ethylene/alpha-olefin copolymer; greater than 20 ppm of a fluoropolymer; and optionally, up to 5 wt. % of one or more of processing aids, acid neutralizers, stabilizers, phosphites, antioxidants, metal de-activators, pigments or colorants, or fillers; wherein the molded article exhibits an oxygen transmission rate [OTR, (cc*mm)/(m2*day*atm)]??3181 (cc2*mm)/g*m2*day*atm)Ă—[Density, g/cc]+3077, (cc*mm)/(m2*day*atm).
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 11, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Keran Lu, Yijian Lin, Todd O. Pangburn, Siddharth Ram Athreya, Laura Nunez, John L. Sugden, Todd A. Hogan, Andrew Heitsch, David T. Gillespie
  • Publication number: 20190322846
    Abstract: A molded article formed from a polymer composition, the polymer composition consisting essentially of: an ethylene homopolymer or ethylene/alpha-olefin copolymer; greater than 20 ppm of a fluoropolymer; and optionally, up to 5 wt.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 24, 2019
    Inventors: Keran Lu, Yijian Lin, Todd O. Pangburn, Siddharth Ram Athreya, Laura Nunez, John L. Sugden, Todd A. Hogan, Andrew Heitsch, David T. Gillespie
  • Publication number: 20190203023
    Abstract: The invention provides ethylene-based composition comprising a blend of an ultra-high molecular weight polyethylene having an intrinsic viscosity from 5 to 50 deciliters/gram; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.
    Type: Application
    Filed: July 26, 2017
    Publication date: July 4, 2019
    Inventors: Dane Chang, Siddharth Ram Athreya, Ronald Wevers
  • Publication number: 20190161602
    Abstract: The invention provides a composition suitable for use in pipe applications, the composition comprising: an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram; a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.930 to 0.960 g/cc; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.
    Type: Application
    Filed: July 26, 2017
    Publication date: May 30, 2019
    Inventors: Dane Chang, Siddharth Ram Athreya, Ronald Wevers
  • Patent number: 9525090
    Abstract: The invention is a flexible photovoltaic article having excellent environmental barrier and mechanical protection for the photovoltaic system. The article comprises top side protective layers that include a flexible thin film glass under a top side stress relieving layer and on the opposite side of the photovoltaic cell a backside stress relieving layer.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: December 20, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Rahul Sharma, Siddharth Ram Athreya, Xuming Chen, Keith L. Kauffmann, Leonardo C. Lopez, Kwanho Yang
  • Publication number: 20140083490
    Abstract: The invention is a flexible photovoltaic article having excellent environmental barrier and mechanical protection for the photovoltaic system. The article comprises top side protective layers that include a flexible thin film glass under a top side stress relieving layer and on the opposite side of the photovoltaic cell a backside stress relieving layer.
    Type: Application
    Filed: June 14, 2012
    Publication date: March 27, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Rahul Sharma, Siddharth Ram Athreya, Xuming Chen, Keith L. Kauffmann, Leonardo C. Lopez, Kwanho Yang