A Method of Synthesis of PBAT Using Group 4 and Group 13 initiators
Debashis Chakraborty, Sourav Singha Roy, Sriparna Sarkar
Indian Pat. Appl. 2024, Filed.
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Full list
Patents from the CV.
Listed most recent first, as recorded in the curriculum vitae.
The ROCOP of epoxide and CO2 to generate aliphatic polycarbonates using simple Organocatalyst
Debashis Chakraborty, Sourav Singha Roy, Sriparna Sarkar
Indian Pat. Appl. 2024, IN202441026250. (Approved)
Synthesis, characterization and catalytic activity of THF coordinated monomeric Group 13 metal isopropoxide isopropanol adduct
Debashis Chakraborty, Sourav Singha Roy, Sriparna Sarkar
Indian Pat. Appl. 2024, IN202441006651. (Approved)
Metal-free polyester based nano-drug carrier
Piyush Kumar Gupta, Anjaneyulu Kummari, Santosh Gupta, Debashis Chakraborty, Rama Shanker Verma
Indian Pat. Appl. 2019, IN 201841019915 A 20191129. (Approved)
Metal-free approach and method for synthesis of polyesters
Piyush Kumar Gupta, Anjaneyulu Kummari, Santosh Gupta, Debashis Chakraborty, Rama Shanker Verma
Indian Pat. Appl. 2019, IN 201841019916 A 20191129. (Approved)
Catalysts for Poly(lactide) synthesis and uses thereof
Debashis Chakraborty, Swarup Ghosh, Venkatachalam Ramkumar
US Patent 2018, US 20160053048 A1.
A process for the preparation of biopolymers
Debashis Chakraborty, Mrinmay Mandal
Indian Pat. Appl. 2016, IN 2014KO01271 A 20160610. (Approved)
Catalysts for poly(lactide) synthesis and uses thereof
Debashis Chakraborty, Swarup Ghosh, Venkatachalam Ramkumar
Indian Pat. Appl. 2015, IN 2013CH01338 A 20150116. (Approved)
Catalysts for poly(lactide) synthesis and uses thereof
Debashis Chakraborty, Swarup Ghosh, Venkatachalam Ramkumar
PCT Int. Appl. 2014, WO 2014155213 A2 20141002. (Approved)
Metal free catalysts for the ring opening polymerization of cyclic esters and lactide
Debashis Chakraborty, Payal Malik, Ravikumar R. Gowda, Venkatachalam Ramkumar
Indian Pat. Appl. 2013, IN 2011CH04568 A 20130628. (Approved)
Metal free catalysts for the ring opening polymerization of cyclic esters and lactide
Debashis Chakraborty, Payal Malik, Ravikumar R. Gowda, Venkatachalam Ramkumar
Indian Pat. Appl. 2013, IN 2011CH04571 A 20130628. (Approved)
Group 4 metal aryloxy compounds
Ravikumar R. Gowda, Venkatachalam Ramkumar, Debashis Chakraborty
Indian Pat. Appl. 2012, IN 2011CH01376 A 20121026. (Approved)
Group 4 metal aryloxy compounds used as polymerization catalyst in lactide polymerization
Ravikumar R. Gowda, Venkatachalam Ramkumar, Debashis Chakraborty
Indian Pat. Appl. 2012, IN 2010CH02550 A 20120622. (Approved)
A method for synthesis of polymers and copolymers
Ravikumar R. Gowda, Debashis Chakraborty
Indian Pat. Appl. 2011, IN 2009CH03099 A 20110624. (Approved)
Polymerization Process Using a Highly Active Catalyst
Eugene Y.-X. Chen, Debashis Chakraborty
PCT Int. Appl. 2003, WO 2003000750 A1 20030103.
Licensing and collaboration.
Several of these catalytic systems are available for industrial development. We welcome enquiries about licensing and joint work.