Patents by Inventor Anand S. Badami

Anand S. Badami 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).

  • Composite polyamide membrane with improved structure
    Patent number: 9630149
    Abstract: A thin film composite polyamide membrane having a porous support and a thin film polyamide layer comprising a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), characterized by the thin film polyamide layer having a critical strain value of less than 10%. In another embodiment, the thin film polyamide layer has a modulus of greater than 0.75 (GPa). In yet another embodiment, the thin film polyamide layer has an equilibrium swelling value of at least 45%. In another embodiment, the thin film polyamide layer has a thickness of at least 230 nm.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 25, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Abhishek Roy, Tina L. Arrowood, Anand S. Badami, Robert C. Cieslinski, David D. Hawn, Steven D. Jons, Mou Paul, Steven Rosenberg, Huang Wu
  • COMPOSITE POLYAMIDE MEMBRANE WITH IMPROVED STRUCTURE
    Publication number: 20150165387
    Abstract: A thin film composite polyamide membrane having a porous support and a thin film polyamide layer comprising a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), characterized by the thin film polyamide layer having a critical strain value of less than 10%. In another embodiment, the thin film polyamide layer has a modulus of greater than 0.75 (GPa). In yet another embodiment, the thin film polyamide layer has an equilibrium swelling value of at least 45%. In another embodiment, the thin film polyamide layer has a thickness of at least 230 nm.
    Type: Application
    Filed: July 3, 2013
    Publication date: June 18, 2015
    Inventors: Abhishek Roy, Tina L. Arrowood, Anand S. Badami, Robert C. Cieslinski, David D. Hawn, Steven D. Jons, Mou Paul, Steven Rosenberg, Huang Wu
  • COMPOSITE POLYAMIDE MEMBRANE WITH CARBOXYLIC ACID FUNCTIONALITY
    Publication number: 20150157990
    Abstract: A thin film composite polyamide membrane including a porous support and a thin film polyamide layer which is a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), wherein the membrane is characterized by the thin film polyamide layer having a dissociated carboxylic acid content of at least 0.18 moles/kg at pH 9.5, and wherein pyrolysis of the thin film polyamide layer at 650 C results in a ratio of responses from a flame ionization detector for fragments produced at 212 m/z and 237 m/z of less than 2.8.
    Type: Application
    Filed: July 3, 2013
    Publication date: June 11, 2015
    Inventors: Abhishek Roy, Tina L. Arrowood, Anand S. Badami, Robert C. Cieslinski, Bruce B. Gerhart, David D. Hawn, Steven D. Jons, Mou Paul, Martin H. Peery, XiaoHua sam Qiu, Mark A. Rickard, Steven Rosenberg, Ian A. Tomlinson, Cheng Li Zu