Patents by Inventor Nagarajan Srivatsan

Nagarajan Srivatsan 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: 20240132752
    Abstract: Compositions containing an azo free radical polymerization initiator, an organic peroxide free radical polymerization initiator, or a combination thereof are disclosed. The compositions are storage stable at temperatures less than 0° C. and cure at room temperature. The compositions are useful as sealants.
    Type: Application
    Filed: February 14, 2022
    Publication date: April 25, 2024
    Applicant: PRC-Desoto International, Inc.
    Inventors: Jiancheng Liu, Jr., Nagarajan Srivatsan
  • Patent number: 11624007
    Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: April 11, 2023
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: JianCheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Patent number: 11608458
    Abstract: Adhesion-promoting compositions containing organic titanates and/or organic zirconates and the use of the adhesion-promoting compositions to provide adhesion-promoting layers to enhance adhesion between metal substrates and an overlying free radical-polymerized sealant are disclosed.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 21, 2023
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: JianCheng Liu, Nagarajan Srivatsan
  • Publication number: 20230059160
    Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.
    Type: Application
    Filed: January 29, 2021
    Publication date: February 23, 2023
    Applicant: PRC-Desoto International, Inc.
    Inventors: Jiancheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Publication number: 20210230457
    Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 29, 2021
    Applicant: PRC-DeSoto International, Inc.
    Inventors: JianCheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Publication number: 20210189206
    Abstract: Adhesion-promoting compositions containing organic titanates and/or organic zirconates and the use of the adhesion-promoting compositions to provide adhesion-promoting layers to enhance adhesion between metal substrates and an overlying free radical-polymerized sealant are disclosed.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: JianCheng Liu, Nagarajan Srivatsan
  • Patent number: 10294397
    Abstract: The invention relates to multiphase compositions of matter comprising at least an acrylic phase and a hydrocarbon phase, and more specifically to pressure sensitive adhesive compositions of matter of an acrylic-hydrocarbon polymer and an additional hydrocarbon component which has a molecular weight of at least 1,000 and may include one or both of an oligomeric hydrocarbon and a polymeric hydrocarbon.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: May 21, 2019
    Assignee: Avery Dennison Corporation
    Inventors: Nagarajan Srivatsan, Prakash Mallya, Daniel L. Holguin, Dominique Wouters, Eric L. Bartholomew, Liza P. Lofton
  • Publication number: 20190118569
    Abstract: The present invention relates to a self adhesive ink jet printable polymer film. The film comprises a polymeric resin and a low surface energy additive that is in a substantially free form. The polymeric resin can be PVC, and the low surface energy additive can be silicone. The film comprising the low surface energy additive exhibits high print resolution and substantially uniform printing quality even after the print surface of the film has been in contact with a back surface of a release liner comprising residual silicone.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 25, 2019
    Inventors: Nagarajan Srivatsan, Prakash Mallya, Sujith Chacko, Michael Ramsay, Jolanda Wesseling, Stuart Miller
  • Patent number: 10065209
    Abstract: A method is provided for fabricating a construction (10) having a functional side (12). The method includes the steps of: supplying a flexible substrate (20); attaching one or more structures (30) to the substrate (20) on a surface or side thereof facing the functional side (12) of the construction (10); and forming one or more features, for example, such as fibrils (39), on at least one of the structures (30), wherein the features have at least one dimension which is at least one of micro-sized or nano-sized.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: September 4, 2018
    Assignee: Avery Dennison Corporation
    Inventors: Ali R. Mehrabi, Nagarajan Srivatsan, Reza Mehrabi, Christine Dang, Ekaterina Vaskova
  • Patent number: 10053606
    Abstract: Compositions comprising thiol-terminated polythioether prepolymers, polyepoxides and non-chromate corrosion inhibitors suitable for use in aerospace sealant applications are disclosed. Sealants prepared using the compositions adhere to a variety of aerospace substrates following exposure to aerospace fluids.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 21, 2018
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Bruce Virnelson, Adam Stott, Sean Manion, Brian Bertino, Nagarajan Srivatsan
  • Publication number: 20180050522
    Abstract: An environmentally friendly laminate structure that provides improved print properties, wherein the laminate structure comprises a print film and an overlaminate film. The print film includes a print layer and a support layer. In one embodiment the print film further comprises an adhesive layer. In another embodiment the print film even further comprises a release liner. The print layer comprises a polymeric material and a silicone additive. The overlaminate material comprises a polymeric material. The overlaminate material may further comprise a functional material.
    Type: Application
    Filed: November 1, 2017
    Publication date: February 22, 2018
    Inventors: Frank Y. Shih, Ben Vanmarcke, Prakash Mallya, Sujith Chacko, Nagarajan Srivatsan, Johannes Schut, Robert W. Schneider, Steven Reekmans
  • Publication number: 20170121576
    Abstract: Various stimuli-responsive polymers are described which exhibit changes in one or more physical properties upon exposure to a stimulus. The polymers are acrylic polymers and include particular end blocks with stimuli-responsive groups. Also described are various adhesives that include the stimuli-responsive polymers.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 4, 2017
    Inventors: Eric L. BARTHOLOMEW, William L. BOTTORF, Christopher L. LESTER, Nagarajan SRIVATSAN
  • Publication number: 20170114259
    Abstract: Compositions comprising thiol-terminated polythioether prepolymers, polyepoxides and non-chromate corrosion inhibitors suitable for use in aerospace sealant applications are disclosed. Sealants prepared using the compositions adhere to a variety of aerospace substrates following exposure to aerospace fluids.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 27, 2017
    Inventors: BRUCE VIRNELSON, ADAM STOTT, SEAN MANION, BRIAN BERTINO, NAGARAJAN SRIVATSAN
  • Patent number: 9580635
    Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: February 28, 2017
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Nagarajan Srivatsan, Alfredo Reyes, Sean Manion, Juexiao Cai, Marfi Ito, Renhe Lin
  • Publication number: 20150283578
    Abstract: A method is provided for fabricating a construction (10) having a functional side (12). The method includes the steps of: supplying a flexible substrate (20); attaching one or more structures (30) to the substrate (20) on a surface or side thereof facing the functional side (12) of the construction (10); and forming one or more features, for example, such as fibrils (39), on at least one of the structures (30), wherein the features have at least one dimension which is at least one of micro-sized or nano-sized.
    Type: Application
    Filed: June 22, 2015
    Publication date: October 8, 2015
    Inventors: Ali R. MEHRABI, Nagarajan SRIVATSAN, Reza MEHRABI, Christine DANG, Ekaterina VASKOVA
  • Patent number: 9061892
    Abstract: A method is provided for fabricating a construction (10) having a functional side (12). The method includes the steps of: supplying a flexible substrate (20); attaching one or more structures (30) to the substrate (20) on a surface or side thereof facing the functional side (12) of the construction (10); and forming one or more features, for example, such as fibrils (39), on at least one of the structures (30), wherein the features have at least one dimension which is at least one of micro-sized or nano-sized.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: June 23, 2015
    Assignee: Avery Dennison Corporation
    Inventors: Ali Reza Mehrabi, Nagarajan Srivatsan, Mohammad Reza Mehrabi, Christine Uyen Dang, Ekaterina Vaskova
  • Patent number: 8915583
    Abstract: Methods and/or systems for printing or otherwise evincing temporary indicia on media with disappearing inks are described along with suitable disappearing ink formulations and media constructions for executing the same. In particular embodiments, the methods and/or systems described employ a plurality of disappearing inks with different disappearing rates. In one embodiment, a barrier layer that is selectively used to cover a major surface of the media is employed to substantially block or otherwise regulate a rate of phase transitions (e.g., evaporation and/or sublimation) experienced by ink borne by the media.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: December 23, 2014
    Assignee: Avery Dennison Corporation
    Inventors: David N. Edwards, Ali R. Mehrabi, Haochuan Wang, Juan M. De Santos Avila, Pradeep S. Iyer, Liviu Dinescu, Srikant Pathak, Nagarajan Srivatsan, Frank Y. Shih
  • Publication number: 20140314960
    Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Inventors: NAGARAJAN SRIVATSAN, ALFREDO REYES, SEAN MANION, JUEXIAO CAI, MARFI ITO, RENHE LIN
  • Publication number: 20140242316
    Abstract: An environmentally friendly laminate structure that provides improved print properties, wherein the laminate structure comprises a print film and an overlaminate film. The print film includes a print layer and a support layer. In one embodiment the print film further comprises an adhesive layer. In another embodiment the print film even further comprises a release liner. The print layer comprises a polymeric material and a silicone additive. The overlaminate material comprises a polymeric material. The overlaminate material may further comprise a functional material.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 28, 2014
    Inventors: Frank Y. Shih, Ben Vanmarcke, Prakash Mallya, Sujith Chacko, Nagarajan Srivatsan, Johannes Schut, Robert W. Schneider, Steven Reekmans
  • Publication number: 20140224577
    Abstract: A pressure sensitive adhesive composition and laminate and having superior adhesive and damping properties is provided. The adhesive laminate includes an acrylic damping composition comprising a graft copolymer having an acrylic backbone and macromonomer side chains.
    Type: Application
    Filed: August 23, 2011
    Publication date: August 14, 2014
    Applicant: Avery Dennison Corporation
    Inventors: Srikant Pathak, Prakash Mallya, Daniel L. Holguin, Xing-Ya Li, Nagarajan Srivatsan