Patents by Inventor Alex Asandei

Alex Asandei 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).

  • Process for the living radical polymerization of chlorine containing monomers
    Patent number: 6838535
    Abstract: A process for the preparation of polyvinyl chloride (PVC) with controlled molecular weight and molecular weight distribution is disclosed. The polymerization reaction can be initiated by various organic halide initiators in conjunction with a metal catalyst and an optional ligand in organic solvents or water and in the presence of an optional comonomer. The polymerization process provides PVC with a controlled molecular weight and narrow molecular weight distribution. The chlorine containing polymers compositions are useful as, among others, viscosity modifiers, impact modifiers and compatibilizers.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: January 4, 2005
    Assignee: University of Pennsylvania
    Inventors: Virgil Percec, Alex Asandei
  • Process for the living radical polymerization of chlorine containing monomers
    Publication number: 20020173611
    Abstract: A process for the preparation of polyvinyl chloride (PVC) with controlled molecular weight and molecular weight distribution is disclosed. The polymerization reaction can be initiated by various organic halide initiators in conjunction with a metal catalyst and an optional ligand in organic solvents or water and in the presence of an optional comonomer. The polymerization process provides PVC with a controlled molecular weight and narrow molecular weight distribution. The chlorine containing polymers compositions are useful as, among others, viscosity modifiers, impact modifiers and compatibilizers.
    Type: Application
    Filed: June 27, 2001
    Publication date: November 21, 2002
    Applicant: UNIVERSITY OF PENNSYLVANIA
    Inventors: Virgil Percec, Alex Asandei