Patents Examined by Vasu S. Jagennathan
  • Anionic polymerization process
    Patent number: 5225493
    Abstract: A process for anionic polymerization of polymerizable monomers with an organo lithium initiator followed by polymerization termination characterized in that terminated reaction products are neutralized by contacting with sulfuric acid, phosphoric acid or a mixture thereof.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: July 6, 1993
    Assignee: The Dow Chemical Company
    Inventors: Gary R. Marchand, Brian W. Walther, Warren R. Rose