Dr Dipak Chattopadhyay
Chemical Researcher -R&D
Hyderabad
Summary
Committed, hardworking and flexible researcher with more than 15 years of experience working for value addition and development of innovative, customer focused products in polymer and construction chemical Industry.
Well-rounded leader with talent for supervising employees using technical skill, soft skill and leadership quality.
Swift problem solver with quick and effective solutions to wide array of industrial and customer issues.
Overview
15
15
years of professional experience
4
4
years of post-secondary education
7
7
Certifications
Work History
General Manager R&D at
HIL Limited
12.2021 - Current
- R&D activity on the development of construction chemicals (waterproofing – liquid integral waterproofing (SNF, PCE based super plasticizer), SBR, Acrylic emulsion waterproofing, re-dispersible powder based (RDP) waterproofing, bitumen emulsion waterproofing, membranes etc; tile adhesives and cleaner, dry mix mortar, joint fillers and grouts, cracks and repair, stone-care range etc and coatings (primer, interior and exterior styrene-acrylic and acrylic emulsion primer and top coat, glossy and mat finish wood coating etc) for HIL new business development
- Introduction of new products for HIL roofing (fiber-cement corrugated painted and non painted sheets) and building solutions (fiber-cement flat boards, panels, AAC blocks, dry mix products etc), cement based putty, cost reduction of existing products and develop value proposition for end customers
- Working on geopolymer development and 3D printing concrete application.
Scientist R & D (Dy GM)
Normet
Jaipur
04.2019 - 10.2021
R&D activity on the development of different materials for construction industry. This include formulation of polyurethanes (flexible and rigid waterproofing foam), polyurea spray membrane, acrylic thermoset resin, epoxy-amine thermoset resin for waterproofing application and grouting, epoxy putty, RDP water based dispersion for tunner waterproofing, polyester resin capsule and cement based capsule development, development of admixtures and accelerators.
DGM R&D
Mayur Uniquoters Limited
Jaipur
03.2017 - 04.2019
- R&D activity on the development of next generation PVC leather cloth.
- Application include OEM seat cover, Upholstery (Sofa cover, leg rest, hand rest, head rest cover), leather goods (Ladies bag, Gents parts, Belts etc), footwear applications (Sandal, formal shoe, school shoe, sports shoe etc).
- Phthalate test using GC-MS instrument, establishing lab for Fog and VOC test as per VDA-278, testing sample at Bureau Veritas Noda, SGS Gurgaon, Intertek UK, Filk Germany etc as per REACH, RoHS, California Proposition 65.
- Attending customer complain and development of polyurethane leather cloth
- Mayur Uniquoters is Indias largest artificial leather cloth manufacturer
- Mayur Uniquoters supply leather cloth to major Indian OEM (Maruti, Honda, Mahindra and Mahindra, Hyundai, Ford, Toyota etc and export leather cloth to GM and Ford USA and Daimler.
Senior Scientist II
Honeywell India Technology Center
Gurgaon
03.2014 - 03.2017
- R&D activity on (a) Rigid foam for appliances and panel, Spray foam for energy insulation of buildings, refrigerated transport vehicle, reefer container, energy insulation of Ship, Cruises and liquefied natural gas carrier; (b) Flexible foam for automotive and slabstock Industry using Honeywell 3rd and 4th generation blowing agent HFC 245fa and Solstice LBA.
R&D Head
Sheela Foam Pvt. Ltd
05.2010 - 03.2014
- R&D activity on to develop and/or value add for flexible foam for (a) Upholstery, Furniture cushion and Mattress Industry, (b) UV stabilized foam for Shoe and Bra-cup application, (c) Flame retardant foam for canopy-generator (acoustic absorption foam), furniture cushion etc complying UL-94 HF1, CAL 117, BS 5852 crib 5 test, FMVSS 302 for polyester foam goes to OEM, (d) Reticulated foam for filter application, (e) Flame lamination foam etc.
- Worked for quality control of incoming raw materials and outgoing different density slabstock foams.
- Was an active member of Sheela Cross functional team for Mattress design and development
- Explored layerwise design of different imported Mattress, their purpose of such design and value addition to the customer.
- Understanding customer complain Mattresswise per month and providing root cause analysis to Marketing and Sales team.
- Justify technically the purpose of change in Management if any change in layer design or foam density wanted to do while keeping cost under control and adding extra value to mattress layer design.
- Attend customer complain for technical foam and provide proper knowledge to customer and solution to their pain areas.
- Conduct literature search and develop value added products.
- Visit different symposia and technical meet to bring additional learning/value for the company.
- Company profile: Sheela Foam Limited is the largest producer of flexible polyurethane foam in India having a market share of more than 35% in India and 30% in Australia [Sheela Foam have Fourteen and Five manufacturing site in India and Australia (Joyce Foam), respectively] with annual turnover approx INR 40 Billion.
- Sleepwell and Feather Foam brands are leading and most trusted names in home comfort products and industrial foam, respectively in India.
- Sheela Foam produces more than 60,000 tons slabstock foam in India and 10,000 tons from Joyce foam in Australia.
- Slabstock foams have application in home comfort products (mattress, bolster, pillow etc), industrial foam (upholstery, furniture, cushion etc) and special application foam such as acoustic foam (Genset, cinema hall, recording studio etc), reticulated foam for oil, water and ceramic filter, antistatic foam for safe packaging of electronic goods, thermoformable foam for bra-cups etc.
Postdoctoral Research Associate
Polymer Chemistry Research Group, Ghent University
Noida
02.2009 - 02.2010
- Mentor: Prof Dr Filip Du Prez
- Dr Filip Du Prez was Editor of “European Polymer Journal” and Editorial board member of the following Journals: (1) Polymer, (2) Designed Monomers and Polymers, (3) Journal of Macromolecular Science, Pure and Applied Chemistry and (4) Reactive & Functional Polymers.]
- Worked on Recticel BV project to develop click chemistry for polyurethane foam and develop value demonstrator for customer.
- Recticel BV is the world largest producer of flexible, semi-flexible and rigid polyurethane foam for different application, polyurethane elastomers and composites for the automotive industries.
Postdoctoral Research Associate
North Dakota State University
Fargo
06.2006 - 06.2008
- Mentor: Prof Dean C Webster
- Prof Webster was Editor-in-Chief of the Journal “Progress In Organic Coatings”, Roy W Tess Award-2011, past American Chemical Society PMSE Chair (Department of Polymeric Materials Science & Eng.)]
- Worked on sol-gel coatings, polyurethane coatings, Epoxy-amine thermosets with amino-silanes, nanocomposite coatings etc
- This work was sponsored by Air Force Office of Scientific Research (AFOSR, USA)
- Developed chromate free sol-gel based coatings for aircrafts.
- Technology was patented and generated a number of research article.
- Department of Coatings & Polymeric Materials of NDSU have very good infrastructure to study corrosion of metals and paint characterization.
Doctoral Research Fellow
Indian Institute of Chemical Technology, IICT
Hyderabad
06.2001 - 06.2006
- Polymer Chemistry
- Thesis Title, “POLYURETHANE-UREA & POLYURETHANE-UREA-ACRYLIC SYSTEMS: SPECTROSCOPIC AND PHYSICOCHEMICAL STUDIES”
- Mentor: Dr KVSN Raju, Scientist, IICT Hyderabad
- During my Ph.D tenure, I have worked on different binder system such as polyurethane, epoxy, acrylics, alkyds, polyester etc and formulated high solids solvent borne and water borne thermosetting coating systems
- The synthesized resins were characterized for molecular weight by GPC and MALDI, viscosity by Ford cup No 4 and Brookfield viscometer, structure was analyzed by FTIR and NMR studies
- Curing of formulated coatings was followed by FTIR, NMR, DMTA, TGA and DSC analysis
- Post-cured coatings (clear coat) were studied for their thermal (TGA, DSC, DMTA), mechanical (hardness, tensile strength, % elongation), surface properties (contact angle, X-ray photoelectron spectroscopy) and accelerated weathering resistance (Q-UV test) properties
- Pigmented coatings were formulated using Fe2O3 and TiO2 and their humidity and salt-spray resistance were evaluated
- Filled coatings were also prepared using BaSO4 and CaCO3 and their property analyzed
- These studies resulted different new approaches and a number of high impact international publications.
- Dr K.V.S.N Raju is Editorial board of the Journal “Progress In Organic Coatings”.
Education
M.Tech - Chemical Eng Specialization Corrosion Sci &Technol
Regional Institute of Technology (Now NIT)
Durgapur 06.1999 - 06.2001
M.Sc - Chemistry
Regional Institute of Technology (Now NIT)
Jamshedpur 06.1997 - 06.1999
Skills
Polymer Chemistry & Engineering
undefinedCertification
Graduate Aptitude Test in Engineering (GATE) 1999 & 2000 conducted by the IIT's and IISc, Bangalore, on behalf of the National Coordinating Board - GATE, Department of Education, Ministry of Human Resource Development, Government of India.
Affiliations
Member
1. American Chemical Society – past member.
2. Society for Polymer Science (Dharwad Chapter)
Journal Referee (Reviewed more than 150 papers for below Journals)
Additional Information
a. Books & Book Chapters: 02 BOOK CHAPTER
1. K.V.S.N. Raju and D. K. Chattopadhyay, “Polyester Coatings for corrosion protection”, Editor Prof. A S Khanna. "High performance organic coatings", Woodhead Publishing Limited, Abington Hall, Abington, Cambridge, CB1 6AH, England, UK, 2008, pp 165 – 200.
2. D. K. Chattopadhyay and Dean C Webster, “Application of Nanomaterials in the Coatings Industry” for “Encyclopedia of Nanoscience and Nanotechnology" 2nd Edition (New 15 Vol. Set.; Vol.11-25), Editor Dr. H. S. Nalwa (www.aspbs.com/enn ), American Scientific Publishers, USA, 2010.
b. Papers in refereed journals: 36 [h index 23, total citations > 4157 [Given in last page]
c. Papers in conference proceedings: 01
1. D. K. Chattopadhyay, Aaron J. Muehlberg and Dean C. Webster, “Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resins and Amino-Functional Silanes” Polymeric Materials: Science and Engineering (PMSE) Preprints 2008, 98, 883.
d. Papers presented in conferences: 25
1. Dipak K. Chattopadhyay, K. V. S. N. Raju, “High Performance Coating Materials for Aerospace Applications” Macro 2004. International Conference on Polymers for Advanced Technologies, December 15-17, 2004, Thiruvananthapuram, India.
2. D. K. Chattopadhyay and Dean C. Webster, “Novel Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resin and 3-aminopropyltrimethoxysilane” International Coatings Expo-2007, Toronto, Oct. 3-5, 2007.
3. D. K. Chattopadhyay, Aaron Muehlberg, Autumn D. Zakula, and Dean C. Webster, “Hybrid Coatings Prepared from Silane Modified Glycidyl Carbamate Resins and Amine Crosslinkers” International Coatings Expo-2007, Toronto, Oct. 3-5, 2007.
4. Neena Ravindran, Dipak Chattopadhyay, Autumn Zakula, Dante Battocchi, Dean C. Webster, Gordon Bierwagen, “Properties of Magnesium-rich Primers Based on Silane-modified Glycidyl Carbamate Resins” International Coatings Expo-2007, Toronto, Oct. 3-5, 2007.
5. D. K. Chattopadhyay, Autumn D. Zakula, and Dean C. Webster, “Synthesis and characterization of organic-inorganic hybrid materials from glycidyl carbamate resin, 3-aminopropyl trimethoxy silane and tetraethoxyorthosilicate” Gordon Research Conferences on Composites, Jan. 13-18, 2008 Ventura, CA, USA.
6. Dipak K. Chattopadhyay, Aaron J. Muehlberg, Dean C. Webster, “Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resins and Amino-Functional Silanes” 235th ACS National Meeting, April 6-10, 2008, New Orleans, LA, USA.
7. Dipak Chattopadhyay, Autumn Zakula, Dean C. Webster, “Hybrid Sol-Gel Coatings from Glycidyl Carbamate Functional Resins” 4th Coatings Science International Conference (COSI 2008), June 23-27, 2008, Noordwijk, The Netherlands.
8. Neena Ravindran, Dipak Chattopadhyay, Dante Battocchi, Dean Webster, Gordon Bierwagen, “Thermal Stability of Magnesium-rich Primers Based on Glycidyl Carbamate Resins” FSCT Coatings Tech Conference, April 28-29, 2009, Indianapolis, IN, USA.
9. D.K. Chattopadhyay, K.V.S.N. Raju, Filip Du Prez, “Phase Mixing Characteristics of Moisture Cured Polyurethanes during Cure” Baekeland 2009, Nov. 22-25, 2009, Antalya, Turkey.
10. Filip Du. Prez, D. Fournier, J. Devroede, D.K. Chattopadhyay, “Click Chemistry as a Tool toward Functionalization of Polyurethane Thermosets” Baekeland 2009, Nov. 22-25, 2009, Antalya, Turkey.
11. Dipak Chattopadhyay, “Formulation and Characterization of Silica Based Hybrid Flexible Polyurethane Foam” PU Tech 2011, March 9-11, Greater Noida, India (Invited Lecture).
12. Mohit Bindal, Dipak Chattopadhyay, "Synthesis and Characterization of Sol-Gel Based Hybrid Composite Polyurethane Foam" International Conference on Advances in Materials and Materials Processing (ICAMMP 2011), December 9-11, 2011 held at IIT Kharagpur, India.
13. Mohit Bindal, Dipak Chattopadhyay, "Synthesis and Characterization of Nano-Composite Flexible Polyurethane Foam" International Conference on Advances in Materials and Materials Processing (ICAMMP 2011), December 9-11, 2011 held at IIT Kharagpur, India.
14. Mohit Bindal, Dipak Chattopadhyay, "Enhancement in Thermo-Mechanical Properties of Bio-based Flexible Polyurethane Foam" 18th Congress of Metallurgical Professionals Involving Students, Industry and Teachers (COMPOSIT), March 12-13, 2011, IIT Kharagpur, India.
15. Amit Kumar, D.K. Chattopadhyay, "Formulation & Characterization of Permanent White Body Polyurethane (PU) Foam with Isophorone Diisocyanate (IPDI)" Asian Workshop on Polymer Processing (AWPP 2013), Dec 8-10, 2013, Goa, India.
16. Amit Kumar, D.K.Chattopadhyay, "Propylene Carbonate Modified Polyether Amine based Flexible Polyurethane Foam: Formulation and Characterization" Asian Workshop on Polymer Processing (AWPP 2013), Dec 8-10, 2013, Goa, India.
17. Anshul Singhal, Ankit Vijay, Himanshu Jain, Roli Punwar, D.K. Chattopadhyay, "Formulation and Characterization of MDI and TDI based Viscoelastic Polyurethane Foams", Asian Workshop on Polymer Processing (AWPP 2013), Dec 8-10, 2013, Goa, India.
18. Ankit Vijay, Anshul Singhal, Himanshu Jain, Roli Punwar, D.K. Chattopadhyay, "Formulation and Characterization of MDI based Flexible Polyurethane Foams" Polymer Processing Society Asia/Australia Conference (PPS 2013), Dec 4-7, 2013, Mumbai, India.
19. Amit Kumar, D.K. Chattopadhyay, D. Kumar, "Propylene Carbonate and Hydroxypropylamine Modified Flexible Polyurethane Foam: Formulation and Characterization", APA International Conference on Polymers: Vision & Innovations (APA - 2014), Feb 19-21, 2014, New Delhi, India.
20. Himanshu Jain, Anshul Singhal, Ankit Vijay, D.K. Chattopadhyay, “A New Epoch for MDI based Flexible PU Foams: Formulation and Characterization” APA International Conference on Polymers: Vision & Innovations (APA – 2014), Feb 19-21, 2014, New Delhi, India.
21. Anshul Singhal, Ankit Vijay, Himanshu Jain, Roli Punwar, D.K. Chattopadhyay, "Formulation and Characterization of MDI and TDI based Visco-PU Foams" APA International Conference on Polymers : Vision & Innovations (APA - 2014), Feb 19-21, 2014, New Delhi, India.
22. Amit Kumar, D.K. Chattopadhyay, D. Kumar, "Study of Aliphatic Isocyanate Based Non-Yellowing Flexible Polyurethane (PU) Foam" National Conference on Innovation and Development in Chemical Technology (IDCT - 2014), Feb 28 - March 1, 2014, New Delhi, India.
23. Abhijit Borgohain, Dipak Chattopadhyay, Pranav Mehta, Selwyn T Wilfred, SP Chidambaram, " Performance Enhancer: HFC, HCFC and HFO Auxiliary Blowing Agents in Molded Polyurethane Foam Systems", Best Technical Poster Award, Presented in Honeywell Technology Symposium, Delhi TCO 2014, Sept 11-12; and Chicago TCO, Sept 29-Oct 1, 2014.
24. Dipak Chattopadhyay, Selwyn T Wilfred, SP Chidambaram, “Impact of HFC 245fa and Solstice LBA addition to slabstock polyurethane foams”, Honeywell Technology Symposium, Delhi TCO 2015, Sept 3-4, 2015.
25. Dipak Chattopadhyay ‘Synthesis and Experimentation with Polymeric Resins in Laboratory Scale & Coating on Textile Fabrics for Various Application’ 16 March 2021, Presented to Uttar Pradesh Textile Technology Institute (Invited eWebinar).
26. Visited other conferences such as (a) UTECH North America 2014, 5-5 June, Charlotte, (b) Honeywell Technology Symposium, Pheonix, May 20-22, 2014, (c) PU Tech 2014, March 12-14, 2014, Greater Noida, India, (d) Urethane Tech 2012, Sept. 18-20, Shenzhen, China, (e) PlastIndia 2012, Feb. 1-6, Pragati Maidan, New Delhi, (f) India Composite Summit 2012, Nov. 1-2, 2012, Pragati Maidan, New Delhi, (g) India Med Expo 2012, Dec. 7-9, Jaipur, India, (h) Agra Footwear Conference 2012, Nov. 2-4, Agra, India, (i) PU Tech 2011, March 9-11, Greater Noida, India, (j) Belgium Polymer Conference 2009, May 14-15, Houffalize, Belgium, (k) International Symposium on Biodegradable Polymers and Packing Materials, Indian Institute of Chemical Technology, Hyderabad, Nov. 17-18, 2001, Organised by Indo-German Nachokoutankt Association (IGNA).
e. Patent Publications:
1. Dean C. Webster and Dipak Chattopadhyay, 'Hybrid Coatings Prepared from Glycidyl Carbamate Resins'. PCT Int. WO 2008150568 (Int App No PCT/US2008/058904)
2. Dean C. Webster and Dipak Chattopadhyay, 'Hybrid Coatings Prepared from Glycidyl Carbamate Resins.' US patent 8097741B2, 2012.
Certified Six Sigma Green Belt, QMS internal auditor training and safety management system.
Completed Six Sigma Green Belt training course at Honeywell.
Safety management system training was carried out at Honeywell.
Completed QMS internal auditor training at Normet and Mayur Uniquoters Limited.
Timeline
General Manager R&D at
HIL Limited
12.2021 - Current
Scientist R & D (Dy GM)
Normet
04.2019 - 10.2021
DGM R&D
Mayur Uniquoters Limited
03.2017 - 04.2019
Senior Scientist II
Honeywell India Technology Center
03.2014 - 03.2017
R&D Head
Sheela Foam Pvt. Ltd
05.2010 - 03.2014
Postdoctoral Research Associate
Polymer Chemistry Research Group, Ghent University
02.2009 - 02.2010
Postdoctoral Research Associate
North Dakota State University
06.2006 - 06.2008
Doctoral Research Fellow
Indian Institute of Chemical Technology, IICT
06.2001 - 06.2006
M.Tech - Chemical Eng Specialization Corrosion Sci &Technol
Regional Institute of Technology (Now NIT)
06.1999 - 06.2001
M.Sc - Chemistry
Regional Institute of Technology (Now NIT)
06.1997 - 06.1999
Graduate Aptitude Test in Engineering (GATE) 1999 & 2000 conducted by the IIT's and IISc, Bangalore, on behalf of the National Coordinating Board - GATE, Department of Education, Ministry of Human Resource Development, Government of India.
National level Eligibility Test (NET) jointly conducted by Council of Scientific & Industrial Research (CSIR) and University Grants Commission (UGC), India [Letter No. 2-44/2000 (i)-EU. II dated 1.2.2001].
UGC-Research Fellowship in Engineering & Technology for perusing Ph. D [Letter No. F.10-1/2000 (SA-II) dated 2 Nov 2001].
Received "Gold Medal" for having secured the first position in M. Tech. M.Sc University Topper.
Received Indian Paint Association Award - 2004.
Name included in Marquis Who's Who in Science and Engineering 2011-2012 (11th Edition
Sigma green belt certified by Honeywell.
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