Alloys of Polybutylene Terephthalate (PBT) and Polypropylene (PP)

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Alloys of polybutylene terephthalate (PBT) and polypropylene (PP) using a suitable compatibilizer with PBT being the major component have been developed. Alloys of this nature provide materials with a combination of mechanical properties suitable for engineering applications. The incorporation of PP helps in processing, mechanical properties modifications and cost reduction. The blending of PBT and PP to attain desirable performance properties requires the incorporation of a third component in small quantities which acts as a compatibilizer. The properties are dependent upon the morphology achieved in these three component systems, which has been studied / established. Such alloys could be used in several load bearing applications in the consumer industry, electronic industry, automotive and other transportation sectors.

Prospective Users

Manufacturers of PBT or PP, manufacturers of polymer blends and alloys, manufacturers of moulded articles made from polymerized materials especially for engineering applications


Alloys, PBT, PP, load bearing

Type of Technology


Developed by

Prof. Ashok Misra


Center for Polymer Science and Engineering

For further information please contact

Managing Director
Foundation for Innovation and Technology Transfer (FITT)
Indian Institute of Technology, Delhi
Hauz Khas, New Delhi-110016, INDIA
Tel : 91-011-26597167, 26857762, 26581013, 26597153
Fax : 91-011-26851169
E-mail :