Patents by Inventor Vikram K. Daga

Vikram K. Daga 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: 20240043684
    Abstract: The present invention relates to a thermoplastic composition comprising (A) from 30 to 80 wt. % of aromatic polycarbonate, (B) from 10 to 35 wt. % of impact modifier, (C) from 10 to 35 wt. % of flow enhancing copolymer composition, (D) from 0 to 10 wt. % of further components wherein the combined weight of components (A), (B), (C) and (D) equals to 100 wt. % and the wt. % is based on the weight of the composition, the impact modifier comprises a copolymer of a conjugated diene elastomer wherein the amount of diene elastomer is at least 50 wt. %, based on the weight of the copolymer, the flow enhancing copolymer composition consists of (i) from 0 to 90 wt. % of first aromatic vinyl copolymer and (ii) from 100 to 10 wt. % of second aromatic vinyl copolymer having a Tg that is higher than the Tg of said first aromatic vinyl copolymer.
    Type: Application
    Filed: December 7, 2021
    Publication date: February 8, 2024
    Inventors: Vikram K. Daga, Jeffrey Eshenaur
  • Publication number: 20210054155
    Abstract: An article of manufacture comprising a polyester composition, the article comprising, as measured by differential scanning calorimetry with a heating rate of 20 C per minute on first heating according to ASTM D3418, at least two different crystalline melting temperatures, wherein a first crystalline melting temperature and a second crystalline melting temperature are each independently 200-290 C; and a first heat of fusion and a second heat of fusion that are each independently at least 3 J/g, preferably wherein a ratio of the first heat of fusion to the second heat of fusion is 1:5-5:1, wherein the polyester composition comprises a first polyester having a phosphorous content of greater than or equal to 20 ppm, a second polyester, and 5-50 weight percent of a plurality of fibers, based on the total weight of the polyester composition, wherein the plurality of fibers have a diameter of 5-25 micrometers.
    Type: Application
    Filed: May 9, 2019
    Publication date: February 25, 2021
    Inventors: Robert Russell Gallucci, Vikram K. Daga, Curtis Collar, Dinesh Munjurulimana, Fred Chang, Abderrahim AF Fakiri
  • Patent number: 10882956
    Abstract: A polyetherimide composition includes specific amounts of a polyetherimide, a block polyestercarbonate, a block poly-carbonate-polysiloxane, and a core-shell impact modifier in which the core includes a polysiloxane and the shell includes a poly(alkyl (meth)acrylate). Relative to a corresponding composition lacking the core-shell impact modifier, the polyetherimide composition exhibits increased impact strength while substantially retaining flame retardancy. Also described are associated articles, including articles formed by additive manufacturing, and a method of additive manufacturing.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 5, 2021
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Sarah E. Grieshaber, Malvika Bihari, Kelly Leung, Vikram K. Daga
  • Publication number: 20200377657
    Abstract: A polyetherimide composition includes specific amounts of a polyetherimide, a block polyestercarbonate, a block poly-carbonate-polysiloxane, and a core-shell impact modifier in which the core includes a polysiloxane and the shell includes a poly(alkyl (meth)acrylate). Relative to a corresponding composition lacking the core-shell impact modifier, the polyetherimide composition ex-hibits increased impact strength while substantially retaining flame retardancy. Also described are associated articles, including articles formed by additive manufacturing, and a method of additive manufacturing.
    Type: Application
    Filed: November 27, 2017
    Publication date: December 3, 2020
    Inventors: Sarah E. Grieshaber, Malvika Bihari, Kelly Leung, Vikram K. Daga
  • Patent number: 9416269
    Abstract: Disclosed herein are compositions and methods for the manufacture of polycarbonate blend compositions containing recycle for improvement in surface aesthetics. The resulting compositions, can be used in the manufacture of articles while still retaining the advantageous physical properties of polycarbonate blend reference compositions that do not contain recycle material. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: August 16, 2016
    Assignee: SABIC Global Technologies B.V.
    Inventors: Amit S. Kulkarni, Vikram K. Daga, James L. DeRudder
  • Patent number: 9255200
    Abstract: Disclosed herein are methods and compositions of blended polycarbonate compositions with improved heat resistance. The resulting compositions, comprising a first polycarbonate polymer, a second polycarbonate polycarbonate, an impact modifier, optionally a flow promoter, and optionally a flame retardant, can be used in the manufacture of articles while still retaining the advantageous physical properties of blended polycarbonate compositions with improved heat resistance. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 9, 2016
    Assignee: SABIC Global Technologies B.V.
    Inventors: Amit S. Kulkarni, Rama Konduri, Vikram K. Daga
  • Publication number: 20150099845
    Abstract: Disclosed herein are blended thermoplastic compositions comprising at least one polycarbonate component, at least one impact modifier component, and at least one flame retardant component. The resulting flame retardant compositions can be used in the manufacture of articles requiring materials with high impact strength and ductility, good flow, thin wall flame retardancy and good thermal resistance. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Vikram K. Daga, Amit S. Kulkarni
  • Publication number: 20150080515
    Abstract: Disclosed herein are methods and compositions of thermoplastic compositions with improved flow and impact properties. The resulting compositions, comprising one or more polycarbonate polymers, an impact modifier, and a poly(alkylene oxide) additive, can be used in the manufacture of articles requiring improved flow characteristics while still retaining the advantageous physical properties of thermoplastic compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventors: Vikram K. Daga, James L. DeRudder
  • Publication number: 20140200302
    Abstract: Disclosed herein are compositions and methods for the manufacture of polycarbonate blend compositions containing recycle for improvement in surface aesthetics. The resulting compositions, can be used in the manufacture of articles while still retaining the advantageous physical properties of polycarbonate blend reference compositions that do not contain recycle material. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Amit S. Kulkarni, Vikram K. Daga, James L. DeRudder
  • Publication number: 20140066556
    Abstract: Disclosed herein are methods and compositions of blended polycarbonate compositions with improved heat resistance. The resulting compositions, comprising a first polycarbonate polymer, a second polycarbonate polycarbonate, an impact modifier, optionally a flow promoter, and optionally a flame retardant, can be used in the manufacture of articles while still retaining the advantageous physical properties of blended polycarbonate compositions with improved heat resistance. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: Amit S. Kulkarni, Rama Konduri, Vikram K. Daga
  • Publication number: 20130310525
    Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 21, 2013
    Applicant: University of Massachusetts
    Inventors: James J. Watkins, Vikram K. Daga, Ying Lin
  • Patent number: 8501850
    Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: August 6, 2013
    Assignee: University of Massachusetts
    Inventors: James J. Watkins, Vikram K. Daga, Ying Lin
  • Publication number: 20110086985
    Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 14, 2011
    Inventors: James J. Watkins, Vikram K. Daga, Ying Lin