Patents by Inventor Sridhar G. Iyer

Sridhar G. Iyer 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: 20230250271
    Abstract: Disclosed herein are aqueous coating compositions containing an anionically stabilized polymer, one or more derivatized polyamines, and a volatile base. Coating compositions can further include one or more additional copolymers, which may or may not be anionically stabilized, and/or additional additives, including pigments, defoamers, pigment dispersing agents, thickeners, surfactants, and combinations thereof. By incorporating a derivatized polyamine, such as an alkoxylated polyamine, the setting time of the coating compositions can be decreased. Also provided are coatings formed from the coating compositions described herein, as well as methods of forming these coatings.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 10, 2023
    Inventors: Randall J. Petrie, Luke S. Egan, Sridhar G. Iyer, Armin A. Burghart, Jeremy J. Funk
  • Patent number: 11649346
    Abstract: Disclosed herein are aqueous coating compositions containing an anionically stabilized polymer, one or more derivatized polyamines, and a volatile base. Coating compositions can farther include one or more additional copolymers, which may or may not be anionically stabilized, and/or additional additives, including pigments, defoamers, pigment dispersing agents, thickeners, surfactants, and combinations thereof. By incorporating a derivatized polyamine, such as an alkoxylated polyamine, the setting time of the coating compositions can be decreased. Also provided are coatings formed from the coating compositions described herein, as well as methods of forming these coatings.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 16, 2023
    Inventors: Randall Petrie, Luke S. Egan, Sridhar G. Iyer, Armin Burghart, Jeremy Funk
  • Publication number: 20220332969
    Abstract: Aqueous coating compositions as well as methods of using thereof are described. The coating compositions can be a two-part aqueous coating composition. The first coating component can comprise one or more polymers and the second coating component can comprise a catalyst such as phosphoric acid. The first coating component and the second coating component can be provided as separate aqueous compositions. The first coating component and a second coating component that can be co-applied (e.g., simultaneously or sequentially) to a surface form a rapid set coating.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 20, 2022
    Inventors: Sridhar G. IYER, Vincent J. GOLDMAN, Michael A. GUIBAULT, Jennifer Summerhill ZIGMOND, Michael KRAYER, Luke S. EGAN, Antonia Yunn CHAN
  • Patent number: 11021629
    Abstract: Two-part aqueous coating compositions as well as methods of using thereof are described. The first coating component can comprise one or more polymers and the second coating component can comprise a flocculant. The first coating component and the second coating component can be provided as separate aqueous compositions. The first coating component and a second coating component that can be co-applied (e.g., simultaneously or sequentially) to a surface form a rapid set coating.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: June 1, 2021
    Assignee: BASF Corporation
    Inventors: Sridhar G. Iyer, Randall Petrie, Michael A. Guibault
  • Publication number: 20200325355
    Abstract: Two-part aqueous coating compositions as well as methods of using thereof are described. The first coating component can comprise one or more polymers and the second coating component can comprise a flocculant. The first coating component and the second coating component can be provided as separate aqueous compositions. The first coating component and a second coating component that can be co-applied (e.g., simultaneously or sequentially) to a surface form a rapid set coating.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 15, 2020
    Inventors: Sridhar G. IYER, Randall PETRIE, Michael A. GUIBAULT
  • Publication number: 20200087531
    Abstract: Disclosed herein are aqueous coating compositions containing an anionically stabilized polymer, one or more derivatized polyamines, and a volatile base. Coating compositions can farther include one or more additional copolymers, which may or may not be anionically stabilized, and/or additional additives, including pigments, defoamers, pigment dispersing agents, thickeners, surfactants, and combinations thereof. By incorporating a derivatized polyamine, such as an alkoxylated polyamine, the setting time of the coating compositions can be decreased. Also provided are coatings formed from the coating compositions described herein, as well as methods of forming these coatings.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 19, 2020
    Inventors: Randall Petrie, Luke S. Egan, Sridhar G. Iyer, Armin Burghart, Jeremy Funk
  • Patent number: 10465086
    Abstract: Disclosed herein are aqueous coating compositions containing an anionically stabilized polymer, one or more derivatized polyamines, and a volatile base. Coating compositions can further include one or more additional copolymers, which may or may not be anionically stabilized, and/or additional additives, including pigments, defoamers, pigment dispersing agents, thickeners, surfactants, and combinations thereof. By incorporating a derivatized polyamine, such as an alkoxylated polyamine, the setting time of the coating compositions can be decreased. Also provided are coatings formed from the coating compositions described herein, as well as methods of forming these coatings.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: November 5, 2019
    Assignee: BASF SE
    Inventors: Randall Petrie, Luke S. Egan, Sridhar G. Iyer, Armin Burghart, Jeremy Funk
  • Patent number: 9315689
    Abstract: Sound damping compositions and methods for their application are described herein. The compositions can include a polymer, a polyacrylate rheology modifier, and a polyurethane rheology modifier. The compositions can alternatively include a polymer derived from greater than 80% of one or more monomers selected from the group consisting of butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, methyl acrylate and ethyl acrylate and combinations thereof and greater than 0% and less than 4% of one or more functional monomers, at least one rheology modifier, and a surfactant. Also described herein are sound damping products including the compositions described herein and structures including the sound damping products. Methods for damping sound in a structure are further described herein. The methods include applying the compositions to the surface of a structure and drying the composition.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: April 19, 2016
    Assignee: BASF SE
    Inventors: Sridhar G. Iyer, James Joseph Duis, Mark Gordon, Beverly Ann Gordon, Luke Egan
  • Publication number: 20150259559
    Abstract: Disclosed herein are aqueous coating compositions containing an anionically stabilized polymer, one or more derivatized polyamines, and a volatile base. Coating compositions can further include one or more additional copolymers, which may or may not be anionically stabilized, and/or additional additives, including pigments, defoamers, pigment dispersing agents, thickeners, surfactants, and combinations thereof. By incorporating a derivatized polyamine, such as an alkoxylated polyamine, the setting time of the coating compositions can be decreased. Also provided are coatings formed from the coating compositions described herein, as well as methods of forming these coatings.
    Type: Application
    Filed: October 16, 2013
    Publication date: September 17, 2015
    Applicant: BASF SE
    Inventors: Randall Petrie, Luke S. Egan, Sridhar G. Iyer, Armin Burghart, Jeremy Funk
  • Publication number: 20100216949
    Abstract: A method of making an alkoxylated polyethyleneimine (APEI) product having reduced discoloration includes treating a composition including a component selected from the group of polyethyleneimine (PEI), alkoxylated polyethyleneimine (APEI) intermediate, and combinations thereof that is used to make the APEI product. The method of treating the composition includes adding water to the composition in an amount of from 2 to 20 parts by weight, based on the total weight of the composition. The water is stripped from the composition within a relatively low temperature range of from 158 to 203° F. until less than or equal to 0.2 parts by weight of water, based on the total weight of the composition, is present in the composition. The aqueous solutions of APEI product thus made have Gardner color values of less than 6.
    Type: Application
    Filed: February 7, 2006
    Publication date: August 26, 2010
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Klaus J. Friedrich, Sridhar G. Iyer, Jay Gregory Otten
  • Publication number: 20090023820
    Abstract: The present invention relates to a surfactant mixture comprising (A) a short-chain component comprising the alkoxylation product of alkanols, where the alkanols have 8 to 12 carbon atoms and the average number of alkoxy groups per alkanol group in the alkoxylation product assumes a value from 3 to 30 and the alkoxy groups are chosen from the group consisting of ethoxy, propoxy, butoxy and pentoxy groups and the alkanols have an average degree of branching of at least 1; and (B) a long-chain component comprising the alkoxylation product of alkanols where the alkanols have 13 to 20 carbon atoms and the average number of alkoxy groups per alkanol group in the alkoxylation product assumes a value from 3 to 30 and the alkoxy groups are chosen from the group consisting of ethoxy, propoxy, butoxy and pentoxy groups and the alkanols have an average degree of branching of from 0.0 to 0.3; and phosphate esters, sulfate esters and ether carboxylates thereof.
    Type: Application
    Filed: February 15, 2007
    Publication date: January 22, 2009
    Applicant: BASF SE
    Inventors: James S. Dailey, Ernst Lippert, Sridhar G. Iyer, Ulrich Steinbrenner, Christoffer Kieburg, Jurgen Tropsch, Richard Baur, Soeren Zimdahl