Patents by Inventor Kumar Nanjundiah

Kumar Nanjundiah 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: 10872990
    Abstract: An electronic device comprises a first encapsulating film in direct contact with a light-receiving and transmitting film and a second encapsulating film in direct contact with a back sheet. The first encapsulating film has a zero shear viscosity greater than that of the second encapsulating film. The back sheet of the electronic device contains fewer bumps than the back sheet of a comparable electronic device having a first encapsulating film with a zero shear viscosity less than or equal to that of the second encapsulating film.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: December 22, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Kumar Nanjundiah, John A. Naumovitz, Michael D. White
  • Publication number: 20190140122
    Abstract: An electronic device comprises a first encapsulating film in direct contact with a light-receiving and transmitting film and a second encapsulating film in direct contact with a back sheet. The first encapsulating film has a zero shear viscosity greater than that of the second encapsulating film. The back sheet of the electronic device contains fewer bumps than the back sheet of a comparable electronic device having a first encapsulating film with a zero shear viscosity less than or equal to that of the second encapsulating film.
    Type: Application
    Filed: December 17, 2018
    Publication date: May 9, 2019
    Inventors: Kumar Nanjundiah, John A. Naumovitz, Michael D. White
  • Patent number: 10164137
    Abstract: An electronic device comprises a first encapsulating film in direct contact with a light-receiving and transmitting film and a second encapsulating film in direct contact with a back sheet. The first encapsulating film has a zero shear viscosity greater than that of the second encapsulating film. The back sheet of the electronic device contains fewer bumps than the back sheet of a comparable electronic device having a first encapsulating film with a zero shear viscosity less than or equal to that of the second encapsulating film.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: December 25, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Kumar Nanjundiah, John A. Naumovitz, Michael D. White
  • Publication number: 20170338360
    Abstract: The present disclosure provides a photovoltaic module. In an embodiment, the photovoltaic module includes a photovoltaic cell, and a layer composed of a film. The film includes a silane-grafted polyolefin (Si-g-PO) resin composition comprising (i) one or more silane grafted polyolefins and (ii) from greater than 0 wt % to less than 5.0 wt % of a micronized silica gel, based on the total weight of the Si-g-PO resin composition. The film has a glass adhesion greater than or equal to 15 N/mm after aging the film at 40° C. and 0% relative humidity for 60 days as measured in accordance with ASTM F88/88M-09.
    Type: Application
    Filed: October 30, 2015
    Publication date: November 23, 2017
    Inventors: Fanny Deplace, Kumar Nanjundiah, Jeffrey E. Bonekamp, John A. Naumovitz
  • Publication number: 20170260375
    Abstract: A polyethylene-based polymer composition suitable for use in a shrink film, the polyethylene-based polymer composition comprising a low density polyethylene having a density of from 0.917 g/cc to 0.935 g/cc and melt index, I2, of from 0.1 g/10 min to 5 g/10 min, a linear low density polyethylene having a density of from 0.900 g/cc to 0.965 g/cc and melt index, I2, of from 0.05 g/10 min to 15 g/10 min, or combinations thereof, a material that absorbs radiation in the near-infrared, visible, and ultraviolet spectral wavelength ranges, and optionally, a medium density polyethylene, a high density polyethylene, or combinations thereof.
    Type: Application
    Filed: October 21, 2015
    Publication date: September 14, 2017
    Applicants: Dow Global Technologies LLC, Dow Global Technologies LLC
    Inventors: Mauricio E. Leano, Paul R. Elowe, Mary Anne Leugers, Kumar Nanjundiah, Bruce Peterson
  • Publication number: 20170200842
    Abstract: PV modules with improved volume resistivity comprise an encapsulant film and a polyolefin backsheet at least one of which comprises organoclay.
    Type: Application
    Filed: June 22, 2015
    Publication date: July 13, 2017
    Inventors: Jeffrey E. Bonekamp, Kumar Nanjundiah, Huiqing Zhang, Yushan Hu
  • Patent number: 9512262
    Abstract: The instant invention is a polyurethane dispersion, method of producing the same, coated articles, and method for coating articles. The polyurethane dispersion according to the present inventions includes (a) one or more polyurethane units derived from one or more prepolymers wherein the one or more prepolymers comprise the reaction product of a mixture dissolved in dipropylene glycol dimethyl ether in the presence of one or more first surfactants with one or more isocyanates, wherein the mixture comprises one or more natural oil based polyols, and one or more adipate polyols, and optionally one or more short diols; and (b) water.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: December 6, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Bedri Erdem, Kumar Nanjundiah, John N. Argyropoulos, Michael C. Kaufman, Jihui Guo, Paul Foley, Debkumar Bhattacharjee
  • Publication number: 20160276512
    Abstract: An electronic device comprises a first encapsulating film in direct contact with a light-receiving and transmitting film and a second encapsulating film in direct contact with a back sheet. The first encapsulating film has a zero shear viscosity greater than that of the second encapsulating film. The back sheet of the electronic device contains fewer bumps than the back sheet of a comparable electronic device having a first encapsulating film with a zero shear viscosity less than or equal to that of the second encapsulating film.
    Type: Application
    Filed: April 16, 2014
    Publication date: September 22, 2016
    Inventors: Kumar Nanjundiah, John A. Naumovitz, Michael D. White
  • Patent number: 9362436
    Abstract: Disclosed in more detail in this application are ethylene interpolymer films having one or more layers, comprising surface layer comprising: (A) a silane-containing ethylene interpolymer comprising (1) an ethylene interpolymer having a density of less than 0.905 g/cm3, and (2) at least 0.1 percent by weight alkoxysilane; characterized by: (3) having a volume resistivity of greater than 5×1015 ohm-cm as measured at 60 C. In one embodiment, such ethylene interpolymer has a residual boron content of less than 10 ppm and residual aluminum content of less than 100 ppm. Also disclosed are laminated electronic device modules comprising: A. at least one electronic device, and B. one of the ethylene interpolymer films as described above in intimate contact with at least one surface of the electronic device. Such laminated electronic device modules according to the invention have been shown to suffer reduced potential induced degradation (“PID”).
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: June 7, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Kumar Nanjundiah, John A. Naumovitz, Rajen M. Patel, Morgan M. Hughes, Frank J. Cerk
  • Publication number: 20150013753
    Abstract: Disclosed in more detail in this application are ethylene interpolymer films having one or more layers, comprising surface layer comprising: (A) a silane-containing ethylene interpolymer comprising (1) an ethylene interpolymer having a density of less than 0.905 g/cm3, and (2) at least 0.1 percent by weight alkoxysilane; characterized by: (3) having a volume resistivity of greater than 5×1015 ohm-cm as measured at 60 C. In one embodiment, such ethylene interpolymer has a residual boron content of less than 10 ppm and residual aluminum content of less than 100 ppm. Also disclosed are laminated electronic device modules comprising: A. at least one electronic device, and B. one of the ethylene interpolymer films as described above in intimate contact with at least one surface of the electronic device. Such laminated electronic device modules according to the invention have been shown to suffer reduced potential induced degradation (“PID”).
    Type: Application
    Filed: February 1, 2013
    Publication date: January 15, 2015
    Inventors: Kumar Nanjundiah, John A. Naumovitz, Rajen M. Patel, Morgan M. Hughes, Frank J. Cerk
  • Patent number: 8927646
    Abstract: The instant invention is a polyurethane dispersion, method of producing the same, coated articles, and method of coating articles. The polyurethane dispersion according to the instant invention comprises (a) one or more polyurethane units derived from one or more prepolymers, wherein the one or more prepolymers comprise the reaction product of one or more natural oil based polyols dissolved in dipropylene glycol dimethyl ether in the presence of one or more first surfactants with one or more isocyanates; and (b) water.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 6, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Bedri Erdem, Debkumar Bhattacharjee, Kumar Nanjundiah, John N. Argyropoulos, Michael C. Kaufman, Jihui Guo, Suresh Subramonian
  • Patent number: 8652568
    Abstract: The instant invention is a coating system, a coating composition, a coating layer, a coated substrate, a method for producing a coating composition, a method for forming a coating layer, a method for making a coated substrate, and a method for healing a coated substrate. The coating system according to the present invention comprises (a) one or more natural oil derived polyols having an average of 3 or more hydroxyl groups per molecule, a number average molecular weight in the range of 300 to 3000 Daltons, a Tg in the range of from less than 0° C.; and (b) one or more polyisocyanates.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: February 18, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Sudhakar Balijepalli, Ray E. Drumright, Sarah T. Eckersley, Brad E. Elwood, Paul Foley, Yanziang Li, Kumar Nanjundiah
  • Publication number: 20120059107
    Abstract: The instant invention is a coating system, a coating composition, a coating layer, a coated substrate, a method for producing a coating composition, a method for forming a coating layer, a method for making a coated substrate, and a method for healing a coated substrate. The coating system according to the present invention comprises (a) one or more natural oil derived polyols having an average of 3 or more hydroxyl groups per molecule, a number average molecular weight in the range of 300 to 3000 Daltons, a Tg in the range of from less than 0° C.; and (b) one or more polyisocyanates.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 8, 2012
    Inventors: Sudhakar Balijepalli, Ray E. Drumwright, Sarah T. Eckersley, Brad M. Elwood, Paul Foley, Yanxiang Li, Kumar Nanjundiah
  • Publication number: 20120053292
    Abstract: The instant invention is a polyurethane dispersion, method of producing the same, coated articles, and method of coating articles. The polyurethane dispersion according to the instant invention comprises (a) one or more polyurethane units derived from one or more prepolymers, wherein the one or more prepolymers comprise the reaction product of one or more natural oil based polyols dissolved in dipropylene glycol dimethyl ether in the presence of one or more first surfactants with one or more isocyanates; and (b) water.
    Type: Application
    Filed: March 31, 2010
    Publication date: March 1, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Bedri Erdem, Debkumar Bhattacharjee, Kumar Nanjundiah, John N. Argyropoulos, Michael C. Kaufman, Jihui Guo, Suresh Subramonian
  • Publication number: 20120035318
    Abstract: The instant invention is a polyurethane dispersion, method of producing the same, coated articles, and method for coating articles. The polyurethane dispersion according to the present inventions includes (a) one or more polyurethane units derived from one or more prepolymers wherein the one or more prepolymers comprise the reaction product of a mixture dissolved in dipropylene glycol dimethyl ether in the presence of one or more first surfactants with one or more isocyanates, wherein the mixture comprises one or more natural oil based polyols, and one or more adipate polyols, and optionally one or more short diols; and (b) water.
    Type: Application
    Filed: February 8, 2010
    Publication date: February 9, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Bedri Erdem, Kumar Nanjundiah, John N. Argyropoulos, Michael C. Kaufman, Jihui Guo, Paul Foley, Debkumar Bhattacharjee