Patents by Inventor Kalyan Sehanobish

Kalyan Sehanobish 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: 20240067809
    Abstract: Embodiments of polymer blends may include a first polymer composition and a second polymer composition. The first polymer composition may include a polyolefin having a thermal transition temperature of at least 100° C. and a graftable monomer having at least one acid or anhydride functional group grafted onto the polyolefin. The second polymer composition may include an E/X/Y ethylene interpolymer, wherein E is an ethylene monomer and comprises greater than 50 wt. % of the interpolymer, X is an ?,?-unsaturated C3-C8 carboxylic acid and comprises greater than 0 to 25 wt. % of the interpolymer, and Y is an optional comonomer comprising C1-C8 alkyl acrylate.
    Type: Application
    Filed: November 22, 2021
    Publication date: February 29, 2024
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Santosh S. Bawiskar, James R. de Garavilla, Jessica Ye Huang, Rajesh P. Paradkar, George Prejean, Kalyan Sehanobish, Barry A. Morris
  • Patent number: 11912852
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ?0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: February 27, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John O. Osby, Jose Ortega
  • Patent number: 11858242
    Abstract: Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed. The structures comprise a film layer consisting essentially of an ethylene-based polymer and a barrier adhesive layer disposed on a surface of the film layer, wherein the structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985. Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed comprising (A) a sealant film layer consisting essentially of an ethylene-based polymer, (B) an intermediate film layer consisting essentially of an ethylene-based polymer, (C) a structural film layer consisting essentially of an ethylene-based polymer, and (D) a barrier adhesive layer, wherein the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: January 2, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Kalyan Sehanobish, Amira A. Marine, Daniele Vinci
  • Publication number: 20230332023
    Abstract: A waterborne laminating barrier adhesive composition including: (a) a water-based acrylic polymer emulsion component having a Tg of above ?20 C; (b) at least one nanocellulose component comprising fibers and/or crystals having a length/width ratio of from 10 to 1,000; and (c) optionally, at least one isocyanate crosslinker component; a process for preparing the above waterborne laminating barrier adhesive composition; and a laminate structure made using the above waterborne laminating barrier adhesive composition.
    Type: Application
    Filed: August 17, 2021
    Publication date: October 19, 2023
    Inventors: Jie Wu, Viraj K. Shah, Kalyan Sehanobish
  • Publication number: 20230303815
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ?0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Application
    Filed: May 10, 2023
    Publication date: September 28, 2023
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John O. Osby, Jose Ortega
  • Patent number: 11674028
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ?0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: June 13, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John O. Osby, Jose Ortega
  • Publication number: 20230167341
    Abstract: A two-component, solvent-based polyurethane adhesive composition based on a crystalline polyester-polycarbonate for producing an adhesive laminate structure including: (a) at least one isocyanate component; and (b) at least one isocyanate-reactive component comprising at least one crystalline polyester-polycarbonate compound; and a process for preparing the adhesive composition.
    Type: Application
    Filed: April 23, 2021
    Publication date: June 1, 2023
    Inventors: Jie Wu, Joseph J. Zupancic, Kalyan Sehanobish
  • Publication number: 20230167340
    Abstract: A two-component, solvent-based polyurethane adhesive composition based on a crystalline polycarbonate for producing an adhesive laminate structure including: (a) at least one isocyanate component; and (b) at least one isocyanate-reactive component comprising a reaction product of: (i) at least one crystalline polycarbonate diol compound, (ii) at least one acrylic polymer compound; and (iii) at least one solvent; and a process for preparing the adhesive composition.
    Type: Application
    Filed: April 23, 2021
    Publication date: June 1, 2023
    Inventors: Jie Wu, Joseph J. Zupancic, Kalyan Sehanobish
  • Patent number: 11607864
    Abstract: Laminate film structures including an adhesive layer having gas and moisture barrier properties are disclosed. The disclosed laminate film structures comprise films bonded together with an adhesive composition, the adhesive composition having barrier properties, e.g., controlling oxygen and/or water vapor transmission rates. The disclosed laminate film structures comprise films made from polymers and/or metallized polymers whereby the weight, thickness, and/or number of film layers has been reduced by using a barrier adhesive in place of a standard adhesive while still achieving similar barrier properties.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 21, 2023
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Viraj K. Shah, Kalyan Sehanobish, Amira A. Marine, Brian Dorvel, Harpreet Singh, Hayley A. Brown
  • Patent number: 11505715
    Abstract: Aqueous matte coating compositions and methods for applying aqueous matte coating compositions to substrates are disclosed. The compositions comprise (a) from 10 to 65 wt % of a first acrylic bead having a calculated glass transition temperature (“Tg”) of from ?30 to 10° C. and an average diameter particle of from 0.1 to 2 ?m, (b) from 20 to 80 wt % of a second acrylic bead having a calculated Tg of from ?60 to 0° C. and an average particle diameter of from 0.5 to 30 ?m, optionally (c) from 10 to 30 wt % of a polymer binder having an average particle diameter of 0.03 to 0.5 ?m, and (d) a slip additive. In some embodiments, the slip additive comprises a silicone emulsion and a wax dispersion. In some embodiments, the slip additive comprises a polyurethane dispersion. Methods for applying aqueous matte coating compositions are also disclosed.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: November 22, 2022
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Yinzhong Guo, Wenwen Li, Kalyan Sehanobish
  • Patent number: 11498999
    Abstract: An aqueous polyurethane dispersion compositions are disclosed. The compositions include a polyurethane prepolymer dispersed in an aqueous medium, the polyurethane prepolymer comprising an isocyanate and a crystalline polyester polyol having a hydroxyl content of 20 to 150 mg KOH/g and a melt temperature of less than or equal to 90° C. Methods of forming a laminate are also disclosed. The methods include providing an aqueous polyurethane dispersion, applying the polyurethane dispersion to a surface of the first substrate, bringing the side of the first substrate into contract with a surface of the second substrate, and curing the aqueous dispersion, thereby laminating the first substrate to the second substrate. Laminates formed by the methods and including the compositions are also disclosed.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 15, 2022
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Chenyan Bai, Zhaohui Qu, Jie Wu, Kalyan Sehanobish, Hongyu Chen, Xinchun Liu, Chao Zhang
  • Patent number: 11472167
    Abstract: Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed. The structures comprise a film layer consisting essentially of an ethylene-based polymer and a barrier adhesive layer disposed on a surface of the film layer, wherein the structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985. Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed comprising (A) a sealant film layer consisting essentially of an ethylene-based polymer, (B) an intermediate film layer consisting essentially of an ethylene-based polymer, (C) a structural film layer consisting essentially of an ethylene-based polymer, and (D) a barrier adhesive layer, wherein the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: October 18, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Kalyan Sehanobish, Amira A. Marine, Daniele Vinci
  • Publication number: 20220324214
    Abstract: Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed. The structures comprise a film layer consisting essentially of an ethylene-based polymer and a barrier adhesive layer disposed on a surface of the film layer, wherein the structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985. Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed comprising (A) a sealant film layer consisting essentially of an ethylene-based polymer, (B) an intermediate film layer consisting essentially of an ethylene-based polymer, (C) a structural film layer consisting essentially of an ethylene-based polymer, and (D) a barrier adhesive layer, wherein the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Inventors: Kalyan Sehanobish, Amira A. Marine, Daniele Vinci
  • Patent number: 11339292
    Abstract: Articles made from a moisture-curable, polymeric composition comprising in weight percent based on the weight of the composition: (A) 2 to less than 80 weight percent (wt %) of an ethylenic polymer with (1) a crystallinity at room temperature of 34% to 55%, or 65% to 80%, and (2) a melt index (I2) of 0.1 to 50 decigrams per minute (dg/min); (B) 3 to 30 wt % of a halogenated flame retardant; (C) 3 to 30 wt % an inorganic antimony flame retardant; and (D) 0 to 10 wt % of at least one of an inorganic flame retardant other than the inorganic antimony flame retardant, e.g., zinc oxide exhibit enhanced ACBD properties in comparison to articles alike in all respects except made from a composition comprising an ethylenic polymer without the requisite crystallinity at room temperature.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 24, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Peter C. Dreux, Vivek Tomer, Manish K. Mundra, Bharat I Chaudhary, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish
  • Patent number: 11299616
    Abstract: Articles made from a moisture-crosslinkable, polymeric composition comprising in weight percent based on the weight of the composition: (A) 10 to 99.99 wt % of a nonpolar ethylenic polymer grafted with silane functionality (Si-g-npPE), the npPE having the following properties before grafting: (1) a vinyl content of 0.2 to 0.7 per 1,000 carbon atoms, (2) a melt index of 1.5 to 7.0 dg/min, (3) a density of 0.913 to 0.965 g/cc, and (4) a molecular weight distribution (Mw/Mn) of equal to or less than 8; (B) 0.01 to 20 wt % of a silanol condensation catalyst; and (C) 0 to 70 wt % of a flame retardant additive; exhibit one or more of desirable (a) silane grafting efficiency; (b) hot creep performance as a cable jacket/insulation after moisture crosslinking; (c) retained dielectric strength after glancing impact as a moisture crosslinked cable construction; and (d) crush resistance as a moisture crosslinked cable construction.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: April 12, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Manish Talreja, Yichi Zhang, Santosh S. Bawiskar, Peter C. Dreux, Manish K. Mundra, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish, Chieh Ying Heah, Kenneth Hin-Leong Ong
  • Patent number: 11078382
    Abstract: A two-component solventless adhesive composition is disclosed, the adhesive composition comprising an isocyanate component comprising at least one isocyanate, and a polyol component comprising at least one amine-initiated polyol having a functionality of from 3 to 8 and a hydroxyl number of from 20 to 1,000, wherein the first and second components are formulated to be applied to separate substrates before being brought together. Further, a method for forming a laminate is disclosed, the method comprising uniformly applying the isocyanate component to a first substrate, uniformly applying the polyol component to a second substrate, bringing the first and second substrates together, thereby mixing and reacting the isocyanate component and the polyol component to form an adhesive between the first and second substrates, and curing the adhesive to bond the first and second substrates. Still further, a laminate formed by the method is disclosed.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 3, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Jie Wu, Rui Xie, Kalyan Sehanobish
  • Publication number: 20210230465
    Abstract: The disclosed adhesive compositions comprise (A) an isocyanate component comprising (i) an isocyanate and (ii) an isocyanate-terminated silane compound. In some embodiments, the isocyanate-terminated silane compound (ii) is the reaction product of a polyisocyanate and an isocyanate-reactive compound comprising a silane group and at least one isocyanate-reactive group selected from the group consisting of —OH, —SH, and —NHR, where R stands for an alkyl remainder having from 1 to 12 C atoms or a cycloaliphatic or aromatic remainder having between 6 and 12 C atoms. In other embodiments, the isocyanate-terminated silane compound (ii) is the reaction product of a polyisocyanate selected from the group consisting of isophorone diisocyanate, m-xylylene diisocyanate, mixtures thereof, dimers thereof, trimers thereof, prepolymers thereof, and combinations thereof and an isocyanate-reactive compound comprising a silane group and at least one isocyanate-reactive group of —NH2.
    Type: Application
    Filed: February 25, 2019
    Publication date: July 29, 2021
    Inventors: Rui Xie, Jie Wu, Kalyan Sehanobish
  • Publication number: 20210054182
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ?0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 25, 2021
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John O. Osby, Jose Ortega
  • Publication number: 20210009874
    Abstract: Two-component solventless polyurethane adhesive compositions are disclosed comprising an isocyanate component comprising an isocyanate, and a polyol component comprising an amine-initiated polyol comprising two or more primary hydroxyl groups and a backbone incorporating tertiary amines, wherein the amine-initiated polyol comprises a functionality of from 2 to 12, a hydroxyl number of from 5 to 1,830, and a viscosity at 40° C. of from 500 to 20,000 mPa-s, and a silicone-based additive (e.g., an anti-foaming agent and/or a wetting agent). The adhesive compositions are formulated such that the isocyanate and polyol components can be applied to separate substrates prior to mixing. Laminate structures comprising the disclosed adhesive compositions and further comprising a metal or metallized substrate are also disclosed.
    Type: Application
    Filed: November 13, 2018
    Publication date: January 14, 2021
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Elodie HABLOT, Jie WU, Kalyan SEHANOBISH, Thorsten SCHMIDT, Joseph ZUPANCIC, Daniele VINCI, Marco FRASCONI, Tuoqi LI
  • Publication number: 20210009876
    Abstract: Two-component solventless polyurethane adhesive compositions are disclosed comprising an isocyanate component comprising an isocyanate blend, and a polyol component comprising an amine-initiated polyol comprising two or more primary hydroxyl groups and a backbone incorporating tertiary amines, wherein the amine-initiated polyol comprises a functionality of from 2 to 12, hydroxyl number of from 5 to 1,830, and a viscosity at 40° C. of from 500 to 20,000 mPa-s, and a silicone-based additive (e.g., an anti-foaming agent and/or a wetting agent). The adhesive compositions are formulated such that the isocyanate and polyol components can be applied to separate substrates prior to mixing. Laminate structures comprising the disclosed adhesive compositions and further comprising a polymeric barrier substrate are also disclosed.
    Type: Application
    Filed: November 13, 2018
    Publication date: January 14, 2021
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Elodie HABLOT, Jie WU, Kalyan SEHANOBISH, Thorsten SCHMIDT, Joseph J. ZUPANCIC, Daniele VINCI, Marco FRASCONI, Tuoqi LI