Patents by Inventor Rohini Karmalkar

Rohini Karmalkar 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: 7332553
    Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: February 19, 2008
    Assignee: MIP Technologies AB
    Inventors: Börje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
  • Publication number: 20070106041
    Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 10, 2007
    Applicant: MIP Technologies AB
    Inventors: Borje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
  • Patent number: 7208557
    Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: April 24, 2007
    Assignee: MIP Technologies AB
    Inventors: Börje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
  • Publication number: 20050159570
    Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.
    Type: Application
    Filed: December 23, 2004
    Publication date: July 21, 2005
    Applicant: MIP Technologies AB, Research Park Ideon
    Inventors: Borje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
  • Publication number: 20050096443
    Abstract: The present invention describes the synthesis of soluble copolymers containing multiple unsaturations. These copolymers contain reactive vinyl groups which can be further reacted in a second stage polymerization. The process involves copolymerization of a vinyl monomer with an inclusion complex of a monomer having multiple unsaturations and a cyclic macromolecular compound to yield soluble polymers. These polymers may be cast into films, membranes or may be converted in micro or nanoparticles and then crosslinked in a second step polymerization.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 5, 2005
    Inventors: Mohan Kulkarni, Rohini Karmalkar, Sunita Satav
  • Publication number: 20050070676
    Abstract: The present invention provides a polymer composition for the selective removal of cobalt, a process for the preparation thereof and the process for removal of cobalt, using the said polymer composition. More particularly it relates to a cross-linked polymer composition prepared by the molecular imprinting technique. The preparation of the cross linked polymer involves selection of vinyl monomers bearing functional groups that bind to cobalt, formation of a complex of these monomers with cobalt and subsequent polymerization of the complex in presence of a crosslinker. The process for the removal of cobalt comprises treating the solution containing a mixture of cobalt and other metal ions with the polymer under conditions sufficient for cobalt to form a complex with the polymer and separating the polymer from the cobalt depleted solution.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Applicant: Council of Scientific and Industrial Research
    Inventors: Mohan Kulkarni, Rohini Karmalkar
  • Publication number: 20050070677
    Abstract: The present invention provides a polymer composition for the selective removal of cobalt, a process for the preparation thereof and the process for removal of cobalt, using the said polymer composition. More particularly it relates to a cross-linked polymer composition prepared by the molecular imprinting technique. The preparation of the cross linked polymer involves selection of vinyl monomers bearing functional groups that bind to cobalt, formation of a complex of these monomers with cobalt and subsequent polymerization of the complex in presence of a crosslinker. The process for the removal of cobalt comprises treating the solution containing a mixture of cobalt and other metal ions with the polymer under conditions sufficient for cobalt to form a complex with the polymer and separating the polymer from the cobalt depleted solution.
    Type: Application
    Filed: November 1, 2004
    Publication date: March 31, 2005
    Applicant: Council of Scientif and Industrial Research
    Inventors: Mohan Kulkarni, Rohini Karmalkar
  • Patent number: 6870021
    Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a cross linking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: March 22, 2005
    Assignee: MIP Technologies AB
    Inventors: Börje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
  • Publication number: 20050032995
    Abstract: The present invention relates to an inclusion complex containing monomers with multiple unsaturated and cyclic compound s represented by the general formula Ax By, wherein the monomer containing X units of vinyl unsaturation and B is a cyclic host compound with Y units, and also, a process for the preparation of soluble homo-polymers with unsaturation group from the inclusion complex.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 10, 2005
    Inventors: Mohan Kulkarni, Rohini Karmalkar, Sunita Satav
  • Publication number: 20030166798
    Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.
    Type: Application
    Filed: November 25, 2002
    Publication date: September 4, 2003
    Inventors: Borje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar