Plasticizers for PVC



Dipropyleneglycol dibenzoate (DPGDB) and Diethyleneglycol dibenzoate (DEGDB) are environment-friendly plasticizers that can replace the current pthalate based additives.


Salient Technical Features


•  CSIR-IICT has developed a catalytic process for the preparation of DPGDB and DEGDB by the esterification of benzoic acid using commercial catalyst.

•  The product is obtained with high purity and meets the market specifications.

•  The final products are colorless.


Level/Scale of Development

CSIR-IICT has developed the processes for DPGDB & DEGDB at 1 kg batch capacity.


Status of Commercialization


The process is ready for demonstration at bench scale can be scaled up for pilot/commercial plant of capacity 1TPD to 10 TPD. Pilot scale activities will be taken up if and when required depending on the commercial plant capacity.


Major Raw Materials to be Utilized


Dipropylene glycol, Diethylene glycol and Benzoic acid

Specific Raw Material Cost is approx. Rs. 65-75/- per kg


Major Plant Equipment and Machinery Required


Stirred reactors, storage tanks & distillation columns.


Technology Package


The scale-up studies and basic design report can be given to the Industry based on the planned capacity of the commercial plant.



For further information please contact


CSIR-Indian Institute of Chemical Technology
Uppal Road, Tarnaka,
Hyderabad - 500 007
Phone: +91-40-21791623