Patents by Inventor Utpal Mahendra Vakil

Utpal Mahendra Vakil 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: 6881816
    Abstract: A melt processible Polyether Ether Ketone (PEEK) polymer with novel end-group structure is synthesized electrophilically using Methane Sulfonic Acid containing Methane Sulfonic Anhydride or Phosphorous Pentoxide. The product so obtained shows controlled structure with elimination of reactive end group like —COOH and is therefore melt processible by conventional techniques and exhibits high thermal and mechanical properties making it useful high temperature engineering and specialty plastics. It can be extruded into a rod, film and can also be molded into commercially useful products.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: April 19, 2005
    Assignee: Gharda Chemicals Ltd.
    Inventors: Keki Hormusji Gharda, Prakash Druman Trivedi, Venkat Srinivasan Iyer, Utpal Mahendra Vakil, Sanjav Chintaman Limaye
  • Publication number: 20030176635
    Abstract: A melt processible Polyether Ether Ketone (PEEK) polymer with novel end-group structure is synthesized electrophilically using Methane Sulfonic Acid containing Methane Sulfonic Anhydride or Phosphorous Pentoxide. The product so obtained shows controlled structure with elimination of reactive end group like —COOH and is therefore melt processible by conventional techniques and exhibits high thermal and mechanical properties making it useful high temperature engineering and specialty plastics. It can be extruded into a rod, film and can also be molded into commercially useful products.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 18, 2003
    Applicant: GHARDA CHEMICALS LTD.
    Inventors: Keki Hormusji Gharda, Prakash Druman Trivedi, Venkat Srinivasan Iyer, Utpal Mahendra Vakil, Sanjav Chintaman Limaye
  • Patent number: 6566484
    Abstract: A melt processible Polyether Ether Ketone (PEEK) polymer with novel end-group structure is synthesized electrophilically using Methane Sulfonic Acid containing Methane Sulfonic Anhydride or Phosphorous Pentoxide. The product so obtained shows controlled structure with elimination of reactive end group like —COOH and is therefore melt processible by conventional techniques and exhibits high thermal and mechanical properties making it useful high temperature engineering and specialty plastics. It can be extruded into a rod, film and can also be molded into commercially useful products.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: May 20, 2003
    Assignee: Gharda Chemicals Ltd.
    Inventors: Keki Hormusji Gharda, Prakash Druman Trivedi, Venkat Srinivasan Iyer, Utpal Mahendra Vakil, Sanjav Chintaman Limaye
  • Publication number: 20020040124
    Abstract: A melt processible Polyether Ether Ketone (PEEK) polymer with novel end-group structure is synthesized electrophilically using Methane Sulfonic Acid containing Methane Sulfonic Anhydride or Phosphorous Pentoxide. The product so obtained shows controlled structure with elimination of reactive end group like —COOH and is therefore melt processible by conventional techniques and exhibits high thermal and mechanical properties making it useful high temperature engineering and specialty plastics. It can be extruded into a rod, film and can also be molded into commercially useful products.
    Type: Application
    Filed: June 22, 2001
    Publication date: April 4, 2002
    Inventors: Keki Hormusji Gharda, Prakash Druman Trivedi, Venkat Srinivasan Iyer, Utpal Mahendra Vakil, Sanjay Chintaman Limaye