Patents by Inventor Aman Kulshrestha

Aman Kulshrestha 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: 11787932
    Abstract: A polyester blend is made in a reaction of a linear polylactide resin and a thermoplastic epoxy group-containing polymer. The polyester blend is blended with a polyester having a glass transition temperature below 0C to form a polyester blend that is particular useful for making paperboard coatings in a melt extrusion process.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 17, 2023
    Assignee: NatureWorks LLC
    Inventors: Aman Kulshrestha, Eric Meierdierks, Joshua Weed, Nicole Whiteman
  • Patent number: 11566103
    Abstract: Polylactide resins are branched by reaction with a mixture of a polyene compound and a cyclic peroxide. This branching method produces a product that has a very high polydispersity, a high branching number (Bn) and excellent melt strength, without forming large amounts of gelled material. The branched polylactide resins are useful in many melt processing operations, in particular sheet and film extrusion, extrusion foaming, extrusion coating and fiber processing. They are characterized by easy processing and allow for broadened processing windows.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 31, 2023
    Assignee: Nature Works LLC
    Inventors: Jed Richard Randall, Aman Kulshrestha, Nemat Hossieny
  • Publication number: 20200362102
    Abstract: Polylactide resins are branched by reaction with a mixture of a polyene compound and a cyclic peroxide. This branching method produces a product that has a very high polydispersity, a high branching number (Bn) and excellent melt strength, without forming large amounts of gelled material. The branched polylactide resins are useful in many melt processing operations, in particular sheet and film extrusion, extrusion foaming, extrusion coating and fiber processing. They are characterized by easy processing and allow for broadened processing windows.
    Type: Application
    Filed: January 25, 2019
    Publication date: November 19, 2020
    Inventors: Jed Richard Randall, Aman Kulshrestha, Nemat Hossieny
  • Publication number: 20200339805
    Abstract: A polyester blend is made in a reaction of a linear polylactide resin and a thermoplastic epoxy group-containing polymer. The polyester blend is blended with a polyester having a glass transition temperature below 0 C to form a polyester blend that is particular useful for making paperboard coatings in a melt extrusion process.
    Type: Application
    Filed: November 30, 2018
    Publication date: October 29, 2020
    Inventors: Aman Kulshrestha, Eric Meierdierks, Joshua Weed, Nicole Whiteman
  • Patent number: 10414714
    Abstract: 2-Acetoxyalkanoic acid esters are made in a reaction of a 3,6-dialkyl-1,4-dioxane-2,5-dione or a poly(?-hydroxyalkanoic acid), an acetate ester and an alcohol or phenol in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: September 17, 2019
    Assignee: NatureWorks LLC
    Inventors: Aman Kulshrestha, Joseph David Schroeder
  • Patent number: 10385002
    Abstract: 2-Acetoxyalkanoic acid esters are made in a reaction of a 3,6-dialkyl-1,4-dioxane-2,5-dione or a poly(?-hydroxyalkanoic acid), an acetate ester and an alcohol or phenol in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: August 20, 2019
    Assignee: NatureWorks LLC
    Inventors: Aman Kulshrestha, Joseph David Schroeder
  • Patent number: 10294188
    Abstract: 2-Acetoxyalkanoic acid esters are made in a reaction of an ?-hydroxyalkanoic acid ester and an acetate ester in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 21, 2019
    Assignee: NatureWorks LLC
    Inventors: Aman Kulshrestha, Joseph David Schroeder, Steven Scott Bray
  • Publication number: 20180208537
    Abstract: 2-Acetoxyalkanoic acid esters are made in a reaction of a 3,6-dialkyl-1,4-dioxane-2,5-dione or a poly(?-hydroxyalkanoic acid), an acetate ester and an alcohol or phenol in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.
    Type: Application
    Filed: March 21, 2018
    Publication date: July 26, 2018
    Applicant: NatureWorks LLC
    Inventors: Aman Kulshrestha, Joseph David Schroeder
  • Publication number: 20170066708
    Abstract: 2-Acetoxyalkanoic acid esters are made in a reaction of a 3,6-dialkyl-1,4-dioxane-2,5-dione or a poly(?-hydroxyalkanoic acid), an acetate ester and an alcohol or phenol in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.
    Type: Application
    Filed: February 23, 2015
    Publication date: March 9, 2017
    Inventors: Aman Kulshrestha, Joseph David Schroeder
  • Publication number: 20170066709
    Abstract: 2-Acetoxyalkanoic acid esters are made in a reaction of an ?-hydroxyalkanoic acid ester and an acetate ester in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.
    Type: Application
    Filed: February 23, 2015
    Publication date: March 9, 2017
    Inventors: Aman Kulshrestha, Joseph David Schroeder, Steven Scott Bray