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: 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
  • Patent number: 10865298
    Abstract: A composition includes polyethylene; a multifunctional co-agent having a functionality of 3 or greater, where the multifunctional co-agent is from 100 to 2000 ppm based upon the polyethylene; and a free radical generator, where the free radical generator is from 5 to 100 ppm based upon the polyethylene. Such composition may be utilized to form modified polyethylenes.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: December 15, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Yunfeng Yang, Hongyu Chen, Alexander Williamson, Kalyan Sehanobish, Jorge Caminero Gomes, Yu Cai
  • Patent number: 10864543
    Abstract: An apparatus and process for the delivery of material to rolls of a laminator is disclosed.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: December 15, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Rui Xie, Yinzhong Guo, Kalyan Sehanobish
  • Patent number: 10844209
    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 25, 2016
    Date of Patent: November 24, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John Osby, Jose Ortega
  • Publication number: 20200254723
    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: Application
    Filed: July 17, 2018
    Publication date: August 13, 2020
    Inventors: Viraj Shah, Kalyan Sehanobish, Amira A. Marine, Brian Dorvel, Harpreet Singh, Hayley A. Brown
  • Publication number: 20200238674
    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: May 9, 2018
    Publication date: July 30, 2020
    Inventors: Kalyan Sehanobish, Amira A. Marine, Daniele Vinci
  • Publication number: 20200207972
    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: Application
    Filed: June 6, 2018
    Publication date: July 2, 2020
    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
  • Publication number: 20200207903
    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: Application
    Filed: May 11, 2017
    Publication date: July 2, 2020
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Chenyan Bai, Zhaohui Qu, Jie Wu, Kalyan Sehanobish, Hongyu Chen, Xinchun Liu, Chao Zhang
  • Publication number: 20200079979
    Abstract: Water-based pressure sensitive adhesive compositions are disclosed comprising (a) an acrylic emulsion having a glass transition temperature of less than or equal to 20° C., (b) optionally, a dispersant or a silane-containing compound, and (c) an ethylene or propylene copolymer emulsion. In some embodiments, (a) comprises from 75 to 99 wt % of the compositions, (b), when present, comprises from 0.1 to 5 wt % of the compositions, and (c) comprises from 0.1 to 25 wt % of the composition, each based on the dry weight of the compositions. Methods for preparing water-based pressure sensitive adhesive compositions are also disclosed comprising emulsion polymerizing at least one unsaturated monomer, thereby forming an emulsion polymer having a glass transition temperature of less than or equal to ?10° C. and blending the emulsion polymer together with a dispersant or silane-containing compound and an ethylene or propylene copolymer emulsion.
    Type: Application
    Filed: March 13, 2017
    Publication date: March 12, 2020
    Applicants: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Mario De Filippis, Miao Yang, Cathie Seyfried, Zhaohui Qu, Isabelle Uhl, Melinda L. Einsla, Kalyan Sehanobish, William B. Griffith, Jr., Vinita Yadav
  • Publication number: 20200010682
    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: Application
    Filed: March 1, 2018
    Publication date: January 9, 2020
    Inventors: Peter C. Dreux, Vivek Tomer, Manish K. Mundra, Bharat I Chaudhary, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish
  • Publication number: 20190390094
    Abstract: Two-component solventless polyurethane adhesive compositions are disclosed. In some embodiments, the solventless adhesive composition includes an isocyanate component including an isocyanate. The solventless adhesive composition further includes a isocyanate-reactive component including a highly-reactive amine-initiated polyol comprising two or more primary hydroxyl groups and a backbone incorporating tertiary amines. The isocyanate-reactive component further includes a phosphate ester polyol. The iso-cyanate-reactive component can further include one or more non-amine-initiated polyols.
    Type: Application
    Filed: November 15, 2017
    Publication date: December 26, 2019
    Inventors: Jie Wu, Rui Xie, Kalyan Sehanobish
  • Publication number: 20190315994
    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 optionally (c) from 10 to 30 wt % of a polymer binder having an average particle diameter of 0.03 to 0.5 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: Application
    Filed: August 7, 2017
    Publication date: October 17, 2019
    Inventors: Yinzhong Guo, Wenwen Li, Kalyan Sehanobish
  • Publication number: 20190225786
    Abstract: A composition includes polyethylene; a multifunctional co-agent having a functionality of 3 or greater, where the multifunctional co-agent is from 100 to 2000 ppm based upon the polyethylene; and a free radical generator, where the free radical generator is from 5 to 100 ppm based upon the polyethylene. Such composition may be utilized to form modified polyethylenes.
    Type: Application
    Filed: August 31, 2016
    Publication date: July 25, 2019
    Applicant: Dow Global Technologies LLC
    Inventors: Yunfeng Yang, Hongyu Chen, Alexander Williamson, Kalyan Sehanobish, Jorge Caminero Gomes, Yu Cai
  • Publication number: 20190177575
    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: Application
    Filed: April 25, 2017
    Publication date: June 13, 2019
    Inventors: Jie Wu, Rui Xie, Kalyan Sehanobish
  • Patent number: 10315395
    Abstract: Disclosed herein is a multilayered article comprising a core layer comprising a thermoplastic polymer; where the thermoplastic polymer comprises a polyolefin, thermoplastic starch, and a compatibilizer; where the compatibilizer does not contain ethylene acrylic acid; where the polyolefin is not polypropylene and where the polyolefin present in an amount of greater than 40 wt %, based on a total weight of the core layer; a first layer comprising a thermoplastic resin; and a second layer comprising a thermoplastic resin; where the first layer and the second layer are devoid of fillers; where the first layer is disposed on a side of the core layer that is opposed to the side that contacts the second layer; where the multilayered article has an optical clarity of greater than 80% when measured as per ASTM D 1746 and a total haze less than 8% when measured as per ASTM D 1003.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 11, 2019
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Kalyan Sehanobish, Santosh S. Bawiskar, Eric Hui Chin Tu, Peter Kwok-Wai Fung, Peter Yap, Xiaosong Wu, Rajen M. Patel
  • Publication number: 20180272665
    Abstract: Disclosed herein is a multilayered article comprising a first layer comprising a thermoplastic polymer; where the thermoplastic polymer comprises polyolefin, a compatibilizer and thermoplastic starch; where the first layer does not contain any filler; and a second layer comprising a polyolefin and a filler; where the second layer does not contain any thermoplastic starch. Disclosed herein too is a method of manufacturing a multilayered article comprising coextruding a first layer and a second layer; where the first layer comprises a polyolefin, a compatibilizer and thermoplastic starch and does not contain any filler; where the second layer comprises a polyolefin and a filler and does not contain any thermoplastic starch; and where the first layer contacts the second layer.
    Type: Application
    Filed: December 16, 2015
    Publication date: September 27, 2018
    Inventors: Jesus Nieto, Kalyan Sehanobish, Santosh S. Bawiskar, Shaun Parkinson
  • Publication number: 20180163039
    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 25, 2016
    Publication date: June 14, 2018
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John Osby, Jose Ortega
  • Publication number: 20180133743
    Abstract: An apparatus and process for the delivery of material to rolls of a laminator is disclosed.
    Type: Application
    Filed: March 10, 2016
    Publication date: May 17, 2018
    Inventors: Rui Xie, Yinzhong Guo, Kalyan Sehanobish
  • Patent number: 9969150
    Abstract: A multilayer film comprising (a) a biaxially-oriented polyethylene furanoate (BO-PEF) polymer layer, (b) an optional ink layer, (c) a bonding layer, and (d) a sealant layer, wherein the BO-PEF polymer has an O2 gas permeability of less than 0.25 cc-mil/100 in.2 24 hrs atm at 80% relative humidity, or a moisture permeability of less than 0.5 g-mil/100 in.2 24 hrs atm at 38° C., or both. The film may be formed from microlayers of BO-PEF-based polymer and polymer with a melting point of at least 5° C. greater than the melting point of the BO-PEF-based polymer.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: May 15, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Debkumar Bhattacharjee, Steven R. Jenkins, Kalyan Sehanobish
  • Publication number: 20170355179
    Abstract: Disclosed herein is a multilayered article comprising a core layer comprising a thermoplastic polymer; where the thermoplastic polymer comprises a polyolefin, thermoplastic starch, and a compatibilizer; where the compatibilizer does not contain ethylene acrylic acid; where the polyolefin is not polypropylene and where the polyolefin present in an amount of greater than 40 wt %, based on a total weight of the core layer; a first layer comprising a thermoplastic resin; and a second layer comprising a thermoplastic resin; where the first layer and the second layer are devoid of fillers; where the first layer is disposed on a side of the core layer that is opposed to the side that contacts the second layer; where the multilayered article has an optical clarity of greater than 80% when measured as per ASTM D 1746 and a total haze less than 8% when measured as per ASTM D 1003.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 14, 2017
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Kalyan SEHANOBISH, Santosh S. BAWISKAR, Eric Hui Chin TU, Peter Kwok-Wai FUNG, Peter YAP, Xiaosong WU, Rajen M. PATEL