Patents by Inventor Shailesh S. Shah

Shailesh S. Shah 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: 11912901
    Abstract: A waterborne coating composition including a novel polymer latex and methods of preparing the polymer latex for the waterborne coating composition. The disclosed polymer latex, when incorporated into the waterborne coating composition, reduces gloss, and achieves a matte appearance without the need for and/or with reduced amounts of traditional inorganic matting additives. In one approach, the polymer latex disclosed herein includes latex particles having a core/shell arrangement configured to not only participate in film formation but also impact surface morphology of dried films to produce the low gloss coatings.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: February 27, 2024
    Assignee: SWIMC LLC
    Inventors: Gamini S. Samaranayake, Shailesh S. Shah, Joseph J. Kestner, Kimberly A. Koglin, Tom Wendland, Margaret Patterson
  • Patent number: 11180649
    Abstract: An aqueous dispersion comprising: (a) a latex binder, wherein the latex binder comprises: (i) about 1-25% by weight of a monomer having latent crosslinking functionality, (ii) 0.1 to about 15% of an acid functional monomer, (iii) about 1 to about 25% ethylenically functional silica, (iv) and about 35 to 97.9% other monomers; and (b) an aqueous unsaturated silane treated silica dispersion, wherein the unsaturated silane treated silica dispersion comprises colloidal ethylenically unsaturated silica particles having an average particle size less than about 100 nm.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: November 23, 2021
    Assignee: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Zhiyu Wang, James M Reuter, Shailesh S. Shah, Peter J. Mackulin, Benjamin M. Borns, Margaret A. Patterson
  • Publication number: 20190077990
    Abstract: Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating, The composition may be prepared by reacting an excess amount of an aminosilane with a carbonate, an epoxy alcohol, or both in aqueous media to yield a silylurethane, and/or a silylamino polyol. In some approaches, the compositions and/or methods may further include an epoxysilane, and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane. This reaction will result in a coating composition that comprises one of a silylurethane, a silylamino polyol, or both, and the aminodisilane. The aqueous mixture of the silylurethane, the silylamino polyol, or both, and the aminodisilane together constitute a coating composition that, upon curing, forms a dry-erase coating.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Brian Makowski, Frank F. Markovitz, II, Jay A. Reimann, Shailesh S. Shah, Tom Wendland
  • Patent number: 10125281
    Abstract: Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating. The composition may be prepared by reacting an excess amount of an aminosilane with a carbonate in aqueous media to yield a silylurethane, introducing an epoxysilane, and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane. This reaction will result in a coating composition that comprises the silylurethane and the aminodisilane. The aqueous mixture of the silylurethane and the aminodisilane together constitute a coating composition that, upon curing, forms a dry-erase coating.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 13, 2018
    Assignee: The Sherwin-Williams Company
    Inventors: Brian Makowski, Frank F. Markovitz, II, Jay A. Reimann, Shailesh S. Shah, Tom Wendland
  • Patent number: 10106703
    Abstract: Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating. The composition may be prepared by providing an aminoalkoxysilane, and in the substantial absence of water, reacting a portion of the aminoalkoxysilane with a carbonate and reacting a portion of the aminoalkoxysilane with an epoxy compound. These reactions will result in a coating composition that comprises a mixture of alkoxysilylamines and alkoxysilylcarbamates. The coating composition can also include an alkyl amine in an amount effective to catalytically deprotect alkoxy groups to yield silanol groups, facilitating fast crosslinking.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 23, 2018
    Assignee: The Sherwin-Williams Company
    Inventors: Frank F. Markovitz, II, Brian Makowski, Jay A. Reimann, Shailesh S. Shah
  • Publication number: 20170342296
    Abstract: Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating. The composition may be prepared by providing an aminoalkoxysilane, and in the substantial absence of water, reacting a portion of the aminoalkoxysilane with a carbonate and reacting a portion of the aminoalkoxysilane with an epoxy compound. These reactions will result in a coating composition that comprises a mixture of alkoxysilylamines and alkoxysilylcarbamates. The coating composition can also include an alkyl amine in an amount effective to catalytically deprotect alkoxy groups to yield silanol groups, facilitating fast crosslinking.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Frank F. Markovitz, II, Brian Makowski, Jay A. Reimann, Shailesh S. Shah
  • Publication number: 20170342285
    Abstract: Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating, The composition may be prepared by reacting an excess amount of an aminosilane with a carbonate in aqueous media to yield a silylurethane, introducing an epoxysilane, and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane. This reaction will result in a coating composition that comprises the silylurethane and the aminodisilane. The aqueous mixture of the silylurethane and the aminodisilane together constitute a coating composition that, upon curing, forms a dry-erase coating.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Brian Makowski, Frank F. Markovitz, II, Jay A. Reimann, Shailesh S. Shah, Tom Wendland