Patents by Inventor Homayoun Jamasbi

Homayoun Jamasbi 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: 20240110102
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Adnan Siddiqui, Dongcheel Lee, Derek Pakenham, Eugene J. Anderson, Shailesh Majmudar, Eunyong Kim, Homayoun Jamasbi, An Tran, Peng Zhang
  • Patent number: 11884867
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: January 30, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Adnan Siddiqui, Dongcheel Lee, Derek Pakenham, Eugene J. Anderson, Shailesh Majmudar, Eunyong Kim, Homayoun Jamasbi, An Tran, Peng Zhang
  • Patent number: 11807780
    Abstract: Disclosed is an aqueous coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a rhamnolipid and/or sophorolipid biosurfactant, which in one embodiment is a mono-rhamnolipid. Also provided is an aqueous architectural coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a biosurfactant, at least one pigment, and water.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 7, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Laura Gage, Denis Bendejacq, Homayoun Jamasbi
  • Publication number: 20220235272
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Application
    Filed: May 1, 2020
    Publication date: July 28, 2022
    Inventors: Lichang ZHOU, Adnan SIDDIQUI, Dongcheel LEE, Derek PAKENHAM, Eugene J. ANDERSON, Shailesh MAJMUDAR, Eunyong KIM, Homayoun JAMASBI, An TRAN, Peng ZHANG
  • Publication number: 20220195077
    Abstract: Processes to prepare aqueous polymer dispersions are provided, as well as compositions thereof, which have high solids content (e.g., 50%) with low viscosity. The process uses a selective hydrophilic macro-RAFT agent of formula (I), and is substantially free of surfactants. This process can be used to make latex polymers with good stability, which can be used widely in coatings (e.g., architectural paints, stone paints, industrial coatings, wood coatings, etc.), adhesives, sealants and mastic compositions.
    Type: Application
    Filed: April 14, 2020
    Publication date: June 23, 2022
    Inventors: Lichang ZHOU, Dongcheel LEE, Tiffany CHEN, Fabio TREZZI, Shailesh MAJMUDAR, Homayoun JAMASBI, An TRAN, Pierre-Emmanuel DUFILS, Laurianne TIMBART, David James WILSON, Changheon KANG
  • Publication number: 20200140694
    Abstract: Disclosed is an aqueous coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a rhamnolipid and/or sophorolipid biosurfactant, which in one embodiment is a mono-rhamnolipid. Also provided is an aqueous architectural coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a biosurfactant, at least one pigment, and water.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Laura GAGE, Denis BENDEJACQ, Homayoun JAMASBI
  • Publication number: 20200010718
    Abstract: Disclosed are novel colorant systems and related method of preparing said systems. Also disclosed are methods of dispersing at least one pigment to prepare a universal colorant system, as well as methods for preparing coatings and paints utilizing the disclosed colorant systems.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 9, 2020
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Homayoun Jamasbi
  • Publication number: 20180072909
    Abstract: Coatings and other applications containing latex having self-thickening properties obtainable by methods of adding a water soluble amphiphilic copolymer in a aqueous dispersion of a water-insoluble polymer obtained from ethylenically unsaturated monomers.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang ZHOU, Adnan SIDDIQUI, Homayoun JAMASBI, David James WILSON, Pierre-Emmanuel DUFILS, Tiffany CHEN, Fabio TREZZI
  • Patent number: 6887928
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: May 3, 2005
    Assignee: Rohm and Haas Company
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi, Dennis Paul Lorah
  • Patent number: 6812278
    Abstract: An aqueous tinting composition containing a pigment and a select dispersing resin is disclosed. In addition, a method of improving the viscosity stability of an aqueous coating composition upon the addition of the aqueous tinting composition containing a pigment and a select dispersing resin is disclosed.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: November 2, 2004
    Assignee: Rohm and Haas Company
    Inventors: Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi, Dennis Paul Lorah, John Michael Friel
  • Publication number: 20030176569
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular organic compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Application
    Filed: April 4, 2003
    Publication date: September 18, 2003
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi, Ronald Carl Faulk, Dennis Paul Lorah
  • Publication number: 20020165313
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Application
    Filed: December 26, 2001
    Publication date: November 7, 2002
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi
  • Publication number: 20020161103
    Abstract: An aqueous tinting composition containing a pigment and a select dispersing resin is disclosed. In addition, a method of improving the viscosity stability of an aqueous coating composition upon the addition of the aqueous tinting composition containing a pigment and a select dispersing resin is disclosed.
    Type: Application
    Filed: December 26, 2001
    Publication date: October 31, 2002
    Inventors: Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi
  • Patent number: 6084026
    Abstract: A combination of chemicals suitable for extending pot life and shortening cure time of a pot mix of a thermosetting composition is disclosed. The combination of chemicals includes a catalyst, such as, dibutyl tin dilaurate; carboxylic or sulfonic acid; and an extender compound, such as 2,4 pentanedione. The combination is generally included in a polymeric component of the urethane composition. The extended pot life provides the user with longer open time during which to efficiently apply a coating of the pot mix over a wide variety of substrate surfaces while still producing coatings that cure quickly upon application.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: July 4, 2000
    Assignee: Rohm and Haas Company
    Inventor: Homayoun Jamasbi
  • Patent number: 6015871
    Abstract: The present invention is directed to a low VOC ultra high solids thermosetting coating composition. A polymeric component of the composition includes a low molecular weight polymer polymerized from a monomer mixture containing less than 45 percent by weight of at least one active hydrogen containing monomer. The polymerization takes place in the presence of a reactive diluent. By including the reactive diluent in the polymeric component of the composition, the amount of solvent used in the composition can be substantially reduced, while still providing a pot mix of the composition with a viscosity sufficient to permit efficient coating application. The coatings from the composition are durable; glossy; impact and solvent resistant; and adherent to a wide variety of substrates, such as automobile bumpers, road surfaces and office equipment.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: January 18, 2000
    Assignee: Rohm and Haas Company
    Inventors: Homayoun Jamasbi, Kenneth Everett Wohltmann, Joseph John Spanier
  • Patent number: 5633314
    Abstract: An aqueous aerosol coating composition, which includes a thermoplastic acrylic polymer solubilized in an aqueous solution of a monohydric alcohol. The coating composition may further be blended with a controlling amount of a water soluble or water reducible acrylic polymer for imparting a desired degree of gloss and alkali resistance to a coating made from the aqueous aerosol coating composition. The compositions of this invention provide for improved drying rates, hardness and alkali resistance over current aqueous systems.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 27, 1997
    Assignee: Rohm and Haas Company
    Inventor: Homayoun Jamasbi
  • Patent number: 5451627
    Abstract: An aqueous aerosol coating composition, which includes a thermoplastic acrylic polymer solubilized in an aqueous solution of a monohydric alcohol. The coating composition may further be blended with a controlling amount of a water soluble or water reducible acrylic polymer for imparting a desired degree of gloss and alkali resistance to a coating made from the aqueous aerosol coating composition The compositions of this invention provide for improved drying rates, hardness and alkali resistance over current aqueous systems.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: September 19, 1995
    Assignee: Rohm and Haas Company
    Inventor: Homayoun Jamasbi