Patents by Inventor Sanjib Kumar Das Sharma

Sanjib Kumar Das Sharma 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).

  • Static reactive jet mixer, and methods of mixing during an amine-phosgene mixing process
    Patent number: 9259704
    Abstract: This disclosure relates to a static mixer (1) with a plurality of nozzles, and more generally, to a mixer and method of use thereof for mixing phosgene and amine with shaped jets or at least two rows of nozzles (15,16) where the second row (16) is used to enrich an area of deficit of the phosgene flow within the static reactive jet mixer (1). Configurations of enriching secondary flow include the use of concentric, eccentric, or offset jets of amine/phosgene, and the use of nozzles with different and irregular geometries to help focus amine/phosgene to a specific area of the principal phosgene flow.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: February 16, 2016
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Paul Aaron Gillis, Hua Bai, Joydeep Mukherjee, Sanjib Kumar Das Sharma, Jorg-Peter Gehrke
  • STATIC REACTIVE JET MIXER, AND METHODS OF MIXING DURING AN AMINE-PHOSGENE MIXING PROCESS
    Publication number: 20130079550
    Abstract: This disclosure relates to a static mixer (1) with a plurality of nozzles, and more generally, to a mixer and method of use thereof for mixing phosgene and amine with shaped jets or at least two rows of nozzles (15,16)where the second row (16) is used to enrich an area of deficit of the phosgene flow within the static reactive jet mixer (1). Configurations of enriching secondary flow include the use of concentric, eccentric, or offset jets of amine/phosgene, and the use of nozzles with different and regular geometries to help focus amine/phosgene to a specific area of the principal phosgene flow.
    Type: Application
    Filed: May 10, 2011
    Publication date: March 28, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Paul Aaron Gillis, Hua Bai, Joydeep Mukherjee, Sanjib Kumar Das Sharma, Jorg-Peter Gehrke