Patents by Inventor Sekhar Sundaram

Sekhar Sundaram 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: 20170298212
    Abstract: This invention relates to a polymeric composition suitable for greenhouse film applications, and greenhouse films made therefrom. The polymeric composition suitable for greenhouse film applications according to the present invention comprises a) 50 to 99 percent by weight of a continuous polymeric phase comprising a polymer selected from the group consisting of a polyolefin, a polyolefin copolymer, an ethylene propylene copolymer with an acrylic ester, an ethylene or propylene copolymer with a vinyl acetate, and combinations thereof; and b) 1 to 50 percent by weight of polymeric particles having an average particle diameter of 0.5 to 10 ?m; a refractive index from 1.474 to 1.545; an average particle hardness from 1.2367E+10 N/m2 to 8.4617E+10 N/m2; and at least 60% polymerized acrylic monomer units.
    Type: Application
    Filed: June 17, 2015
    Publication date: October 19, 2017
    Inventors: Edward E. LaFleur, Alexander Williamson, Sekhar Sundaram, Rajesh P. Paradkar, Himal Ray
  • Publication number: 20170165948
    Abstract: A film comprising a) at least one base layer comprising a thermoplastic polymeric matrix material; and b) a skin layer comprising a thermoplastic polymeric matrix material and from 5 wt % to 80 wt % of polymeric particles having an average particle diameter from 0.5 ?m to 15 ?m, a refractive index from 1.46 to 1.7, and at least 60 mole % of acrylic monomer units wherein the film is stretched by a factor of 2 to 8 uniaxially or biaxially; and wherein after stretching, the skin layer has a thickness that is between 50% and 200% of the diameter of the polymeric particles, and a method of making the film, are disclosed.
    Type: Application
    Filed: February 9, 2015
    Publication date: June 15, 2017
    Inventors: Rajasingh Solomon Thomas Udhaya Singh, Alexander Williamson, Edward E. Lafleur, Sekhar Sundaram, Xinyu Gu, Debkumar Bhattacharjee, Himal Ray
  • Patent number: 9556284
    Abstract: The invention relates to multi-stage polymer emulsions suitable for forming pressure sensitive adhesives with high peel and high temperature cohesion.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: January 31, 2017
    Assignee: Rohm and Haas Company
    Inventors: Ralph Craig Even, Sekhar Sundaram
  • Patent number: 9487337
    Abstract: The invention provides a layered structure comprising at least two layers: A) a first layer A, formed from a composition A, comprising a polyurethane; and B) a second layer B, formed from a composition B, comprising at least one functionalized polymer B comprising the following: i) at least one polymerized monomeric unit comprising a functional group selected from the group consisting of the following: a) an acid group, b) an anhydride group, c) a primary or secondary amine group, and d) combinations thereof; or ii) at least one reacted functionalization agent comprising a functional group selected from the group consisting of the following: e) an acid group, f) an anhydride group, g) a primary or secondary amine group, and h) combinations thereof; or iii) combinations thereof; and wherein the functionalized polymer B has a number-average molecular weight greater than 1,000 g/mole, and/or a melt index (I2) less than, or equal to, 2500 g/10 min.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: November 8, 2016
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Sekhar Sundaram, Debkumar Bhattacharjee, Jozef J. Van Dun, Bradley A. Jacobs, Rajen M. Patel, Alexander Williamson
  • Publication number: 20140342055
    Abstract: The invention provides a layered structure comprising at least two layers: A) a first layer A, formed from a composition A, comprising a polyurethane; and B) a second layer B, formed from a composition B, comprising at least one functionalized polymer B comprising the following: i) at least one polymerized monomeric unit comprising a functional group selected from the group consisting of the following: a) an acid group, b) an anhydride group, c) a primary or secondary amine group, and d) combinations thereof; or ii) at least one reacted functionalization agent comprising a functional group selected from the group consisting of the following: e) an acid group, f) an anhydride group, g) a primary or secondary amine group, and h) combinations thereof; or iii) combinations thereof; and wherein the functionalized polymer B has a number-average molecular weight greater than 1,000 g/mole, and/or a melt index (I2) less than, or equal to, 2500 g/10 min.
    Type: Application
    Filed: September 19, 2012
    Publication date: November 20, 2014
    Applicants: Dow Global Technologies LLC, Rohm and Haas Chemicals LLC
    Inventors: Sekhar Sundaram, Debkumar Bhattacharjee, Jozef J. Van Dun, Bradley A. Jacobs, Rajen M. Patel, Alexander Williamson
  • Publication number: 20140227535
    Abstract: The invention provides a layered structure comprising at least two layers: A) a first layer A formed from a composition A comprising a polyurethane; B) a second layer B formed from a composition B comprising at least one compound selected from the group consisting of the following compounds: a) a compound 1 comprising at least one acid group, b) a compound 2 comprising at least one anhydride group, c) a compound 3 comprising at least one primary amine group and/or at least one secondary amine group, and d) a combination thereof; and wherein the compound has a molecular weight or number average molecular weight, each less than 10,000 g/mole.
    Type: Application
    Filed: September 19, 2012
    Publication date: August 14, 2014
    Applicants: Dow Global Technologies LLC, Rohm and Haas Chemicals LLC
    Inventors: Sekhar Sundaram, Debkumar Bhattacharjee, Jozef J. Van Dun, Bradley A. Jacobs, Rajen M. Patel, Alexander Williamson
  • Patent number: 7723396
    Abstract: This invention relates to composites comprising a substrate and a multi-stage latex polymer emulsion film.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 25, 2010
    Assignee: Rohm and Haas Company
    Inventors: Ralph Craig Even, Robert Victor Slone, Sekhar Sundaram
  • Publication number: 20100003442
    Abstract: The invention relates to multi-stage polymer emulsions suitable for forming pressure sensitive adhesives with high peel and high temperature cohesion.
    Type: Application
    Filed: June 11, 2009
    Publication date: January 7, 2010
    Inventors: Ralph Craig Even, Sekhar Sundaram
  • Publication number: 20080281005
    Abstract: This invention relates to composites comprising a substrate and a multi-stage latex polymer emulsion film.
    Type: Application
    Filed: January 7, 2008
    Publication date: November 13, 2008
    Inventors: Ralph Craig Even, Robert Victor Slone, Sekhar Sundaram