Patents by Inventor Anilkumar Raghavanpillai

Anilkumar Raghavanpillai 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: 10696850
    Abstract: The present invention comprises a crosslinkable polymer compound comprising a fluorinated Unit A, an optional hydrophilic Unit B, an optional acidic or neutralized acid Unit C, a crosslinkable pendant olefin group-containing Unit D, and an optional hydrophobic alkyl Unit E. Such polymeric compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 30, 2020
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Anilkumar Raghavanpillai, James J. Hughes, Vincent Franco, John Russell Crompton, Jr., Brad M Rosen, Hau-Nan Lee, Michael Henry Ober, Dan Qing Wu
  • Patent number: 10442952
    Abstract: The present invention comprises a composition and method of use for providing durable dirt pickup resistance to architectural coatings. Such compositions comprise a coating base and a post-modified crosslinkable fluoropolymer additive, such that the coatings additive is allowed to migrate to the coating surface and further cure once applied to a substrate. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: October 15, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Anilkumar Raghavanpillai, Brad M. Rosen, James J. Hughes, Vincent Franco, John Russell Crompton, Jr., Kai Qi, Michael Henry Ober
  • Publication number: 20180118956
    Abstract: The present invention comprises a crosslinkable polymer compound comprising a fluorinated Unit A, an optional hydrophilic Unit B, an optional acidic or neutralized acid Unit C, a crosslinkable pendant olefin group-containing Unit D, and an optional hydrophobic alkyl Unit E. Such polymeric compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.
    Type: Application
    Filed: April 28, 2016
    Publication date: May 3, 2018
    Inventors: ANILKUMAR RAGHAVANPILLAI, JAMES J. HUGHES, VINCENT FRANCO, JOHN RUSSELL CROMPTON, JR., BRAD M. ROSEN, HAU-NAN LEE, MICHAEL HENRY OBER, DAN QING WU
  • Publication number: 20180112097
    Abstract: The present invention comprises a composition and method of use for providing durable dirt pickup resistance to architectural coatings. Such compositions comprise a coating base and a post-modified crosslinkable fluoropolymer additive, such that the coatings additive is allowed to migrate to the coating surface and further cure once applied to a substrate. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films.
    Type: Application
    Filed: April 27, 2016
    Publication date: April 26, 2018
    Inventors: ANILKUMAR RAGHAVANPILLAI, BRAD M. ROSEN, JAMES J. HUGHES, VINCENT FRANCO, JOHN RUSSELL CROMPTON JR, KAI QI, MICHAEL HENRY OBER
  • Publication number: 20180100032
    Abstract: The invention relates to a crosslinkable fluorinated urethane compound having at least one ethylenically unsaturated functional group. Such compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.
    Type: Application
    Filed: April 28, 2016
    Publication date: April 12, 2018
    Inventors: ANILKUMAR RAGHAVANPILLAI, MICHAEL HENRY OBER, VINCENT FRANCO
  • Patent number: 9777170
    Abstract: The present invention comprises a composition and method of use for providing cleanability to paint comprising an aqueous emulsion of Formula (I) wherein the composition of Formula (I) is a random copolymer; wherein said composition of formula (I) further comprises residue from a hydrophilic chain transfer agent. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films. For these reasons, the composition of the present invention is particularly suitable for use as additives to exterior coatings and paints.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: October 3, 2017
    Assignee: THE CHEMOURS COMPANY TT, LLC
    Inventors: Anilkumar Raghavanpillai, Timothy Pellenbarg, Hau-Nan Lee, James J. Hughes, Kai Qi, John Russell Crompton, Jr., Brad M Rosen
  • Publication number: 20160007600
    Abstract: Compounds that are related to natural synthetic lipochitooligosaccharide analogs were chemically synthesized and found to be effective as plant performance enhancers. The compounds are amine-oligosaccharides with a substituent aryl-containing aliphatic carboxylic acid attached at the amine to the terminal amine-sugar unit. The aryl containing aliphatic carboxylic acid terminates with an aromatic ring structure.
    Type: Application
    Filed: March 6, 2014
    Publication date: January 14, 2016
    Inventors: Zheng-Zheng Huang, Anilkumar Raghavanpillai, Subramaniam Sabesan, Christina Jacy Spado, Zuohong Yin
  • Publication number: 20150240090
    Abstract: The present invention comprises a composition and method of use for providing cleanability to paint comprising an aqueous emulsion of Formula (I) wherein the composition of Formula (I) is a random copolymer; wherein said composition of formula (I) further comprises residue from a hydrophilic chain transfer agent. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films. For these reasons, the composition of the present invention is particularly suitable for use as additives to exterior coatings and paints.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Inventors: ANILKUMAR RAGHAVANPILLAI, Timothy Pellenbarg, Hau-Nan Lee, James J. Hughes, Kai Qi, John Russell Crompton, JR., Brad M. Rosen
  • Patent number: 8841484
    Abstract: Disclosed are certain partially fluorinated amide compounds and composite materials containing the compounds. Also disclosed are methods for making the composite materials.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 23, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Keith W. Hutchenson, Anilkumar Raghavanpillai, Stefan Reinartz
  • Patent number: 8809209
    Abstract: A stain resistant, oil and water repellent composition comprising a copolymer prepared from fluorinated methacrylate, carbonate methacrylate, and methacrylic acid or salt thereof, a method of providing stain resistance, oil and water repellency to substrates, and a treated substrate.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: August 19, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, Siddhartha Shenoy, Libby Xiaowei Hu
  • Patent number: 8808868
    Abstract: A stain resistant, oil and water repellent copolymer comprising a copolymer prepared from fluorinated (meth)acrylate and amine salts of (meth)acrylic acid, and a method of providing stain resistance, oil and water repellency to substrates and a treated substrate.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: August 19, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Siddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, John Russell Crompton, Jr.
  • Publication number: 20140073707
    Abstract: Compositions comprising a fluorosurtactant and a fluoro-free hydrotrope are disclosed. The fluoro-free hydrotropes are cationic aromatic compounds, anionic aromatic compounds, or water soluble azo derivatives.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas G. Calvarese, Weiming Qiu, Anilkumar Raghavanpillai, Yamaira Gonzalez
  • Patent number: 8642177
    Abstract: A method to provide acid etch resistance to contacting a calcareous substrate with a copolymer prepared from fluorinated methacrylate, short chain branched (meth)acrylate, and (meth)acrylic acid salt and a treated substrate.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: February 4, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Brad M Rosen, Siddhartha R. Shenoy, Anilkumar Raghavanpillai, Ernest Bryon Wysong, Joel M Pollino, James J Hughes, John Russell Crompton, Jr.
  • Patent number: 8628682
    Abstract: Compositions comprising a fluorosurfactant and a hydrotrope are disclosed. The hydrotropes are either cationic or anionic benzene derivatives comprising fluoro-substituted functional groups and polar groups. The compositions are useful in various surfactant applications.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: January 14, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas G. Calvarese, Yamaira Gonzalez, Viacheslav A. Petrov, Weiming Qiu, Anilkumar Raghavanpillai
  • Patent number: 8563672
    Abstract: A process for producing copolymers of (meth)acrylates:(meth)acrylic acid amine complexes useful for hard surfaces having increased performance for stain resistance, oil and water repellency properties.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: October 22, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Siddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, Ernest Byron Wysong
  • Publication number: 20130251908
    Abstract: A method to provide acid etch resistance to contacting a calcareous substrate with a copolymer prepared from fluorinated methacrylate, short chain branched (meth)acrylate, and (meth)acrylic acid salt and a treated substrate.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 26, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Brad M. Rosen, Siddhartha R. Shenoy, Anilkumar Raghavanpillai, Ernest Bryon Wysong, Joel M. Pollino, James J. Hughes, John Russell Crompton, JR.
  • Patent number: 8450513
    Abstract: Novel silane compositions have been prepared by reacting a 3-isocyanatopropyl trialkoxysilane with an alcohol or diol having a divalent alkylene or alkylene-ether group. The alcohol or diol has a formula weight less than about 5000. The compositions can be used to modify the surfaces of inorganic oxygen-containing materials, including but not limited to silica, silicates, borosilicates, aluminosilicates, days, and metal oxides. Surface treatment of silica nanoparticles with these compositions improves their improved dispersion in polyester nanocomposites.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: May 28, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Changzai Chi, Gordon Mark Cohen, Surbhi Mahajan, Anilkumar Raghavanpillai
  • Publication number: 20130102685
    Abstract: Compositions comprising a fluorosurfactant and a hydrotrope are disclosed. The hydrotropes are either cationic or anionic benzene derivatives comprising fluoro-substituted functional groups and polar groups. The compositions are useful in various surfactant applications.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 25, 2013
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas G. Calvarese, Yamaira Gonzalez, Viacheslav A. Petrov, Weiming Qiu, Anilkumar Raghavanpillai
  • Patent number: 8383716
    Abstract: Polyester nanocomposite compositions contain silica nanoparticles that have been subjected to surface treatment with novel trialkoxysilane compositions. The novel silane compositions are prepared by reacting a 3-isocyanatopropyl trialkoxysilane with 1,3-propanediol or certain polyether diols. The silica nanoparticles exhibit improved dispersion in the polyester. This leads to haze reduction and improvements in mechanical properties.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: February 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Changzai Chi, Gordon Mark Cohen, Surbhi Mahajan, Anilkumar Raghavanpillai
  • Publication number: 20120309853
    Abstract: Compositions comprising compounds having an aldohexose moiety, a highly fluorinated moiety, and a nitrogen-containing functional group linking the moieties together are disclosed. The aldohexose-based fluoroadditives are effective in reducing the surface tension of water and are useful in various surfactant applications. Also disclosed are processes for making aldohexose-based fluoroadditives.
    Type: Application
    Filed: May 14, 2012
    Publication date: December 6, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: ANILKUMAR RAGHAVANPILLAI, Stefan Reinartz