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).
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Publication number: 20240043684Abstract: 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: ApplicationFiled: December 7, 2021Publication date: February 8, 2024Inventors: Vikram K. Daga, Jeffrey Eshenaur
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Publication number: 20210054155Abstract: 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: ApplicationFiled: May 9, 2019Publication date: February 25, 2021Inventors: Robert Russell Gallucci, Vikram K. Daga, Curtis Collar, Dinesh Munjurulimana, Fred Chang, Abderrahim AF Fakiri
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Patent number: 10882956Abstract: 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: GrantFiled: November 27, 2017Date of Patent: January 5, 2021Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Sarah E. Grieshaber, Malvika Bihari, Kelly Leung, Vikram K. Daga
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Publication number: 20200377657Abstract: 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: ApplicationFiled: November 27, 2017Publication date: December 3, 2020Inventors: Sarah E. Grieshaber, Malvika Bihari, Kelly Leung, Vikram K. Daga
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Patent number: 9416269Abstract: 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: GrantFiled: January 11, 2013Date of Patent: August 16, 2016Assignee: SABIC Global Technologies B.V.Inventors: Amit S. Kulkarni, Vikram K. Daga, James L. DeRudder
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Patent number: 9255200Abstract: 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: GrantFiled: August 31, 2012Date of Patent: February 9, 2016Assignee: SABIC Global Technologies B.V.Inventors: Amit S. Kulkarni, Rama Konduri, Vikram K. Daga
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Publication number: 20150099845Abstract: 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: ApplicationFiled: October 7, 2013Publication date: April 9, 2015Applicant: SABIC Innovative Plastics IP B.V.Inventors: Vikram K. Daga, Amit S. Kulkarni
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Publication number: 20150080515Abstract: 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: ApplicationFiled: September 13, 2013Publication date: March 19, 2015Inventors: Vikram K. Daga, James L. DeRudder
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Publication number: 20140200302Abstract: 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: ApplicationFiled: January 11, 2013Publication date: July 17, 2014Applicant: SABIC Innovative Plastics IP B.V.Inventors: Amit S. Kulkarni, Vikram K. Daga, James L. DeRudder
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Publication number: 20140066556Abstract: 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: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Inventors: Amit S. Kulkarni, Rama Konduri, Vikram K. Daga
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Publication number: 20130310525Abstract: 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: ApplicationFiled: July 23, 2013Publication date: November 21, 2013Applicant: University of MassachusettsInventors: James J. Watkins, Vikram K. Daga, Ying Lin
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Patent number: 8501850Abstract: 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: GrantFiled: October 14, 2010Date of Patent: August 6, 2013Assignee: University of MassachusettsInventors: James J. Watkins, Vikram K. Daga, Ying Lin
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Publication number: 20110086985Abstract: 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: ApplicationFiled: October 14, 2010Publication date: April 14, 2011Inventors: James J. Watkins, Vikram K. Daga, Ying Lin