Mr Sibabrata De is a Polymer Technologist with over 3 decades of long association in the Indian & overseas polymer industry in engineering & commodity polymers, having in-depth knowledge of product portfolio and product technology.

He is experienced in product qualification in diverse plastics processing areas, product development, and technical marketing and has a wide experience in engineering, and speciality polymers, ETP compounds, and speciality additives in product development projects (stage-gate) and application & regulatory compliances.

Currently, he is the Director – of Business Development at the Wintech Polysol Pvt Ltd

  1. University Colleges of Polymer Science & Technology, Calcutta University
  2. M. Tech. (Polymer Science & Technology) from Calcutta University, India (1987)
  3. B. Tech. (Polymer Science & Technology) from Calcutta University, India (1985)
  4. B. Sc. (Chemistry) from Calcutta University, India (1981)

  1. DuPont Performance Polymer Technical Training-DuPont R&D, China in 2010
  2. DuPont Sales (Engineering Polymers)-DuPont China & Hong Kong in 2010
  3. Packaging Technical Training DuPont R&D, China in 2007
  4. Application Training (HDPE) at Basell, Germany in 2000
  5. Application Training (PP) at Montell, Italy in 1995


1) Director – Business Development: Wintech Polysol Pvt Ltd, Bangalore, 2021 - present

Business Development in Engineering Polymers & Specialty Compounds, Product Development, Regulatory & Application Standard Compliance, Concept – to – commercialisation

2) Global Technology Manager/ Lead Scientists: SABIC, Riyadh 2013 - 2021

ETP Compounding & Product Development, Technology Support, Technical Marketing, Technology & Innovation project management (stage-gate process), Formulating and executing a technical marketing plan, Liaison with Plant, QC and R&D for evaluation of polymer grades and additives

3) Technical Marketing Manager: E.I. DuPont India, Mumbai/Bangalore, 2007-2013

Business development for ECPs & Engineering Polymers in Packaging, Automotive, E&E, Industrial, and Consumer segments, Technical qualification of polymers in processing and applications, Global account management, segment management, Product Stewardship functions for Engineering Polymers

4) General Manager:Reliance Industries Ltd / IPCL, 1990-2007

Business Development (PP/PE) - Appliances, Automotive & Consumer Sectors. Liaison with major Processors/End-user in auto, appliances, houseware sectors, Business Development Flexible and Rigid Packaging, Plastics for Agriculture, Rotational Moulding, Business Development - Automotive products, CRM Activities, Seminars, Exhibitions