Thermoplastic Foams Using Physical and Chemical Blowing Agents

My Past Foam Research Activity

Foam Related Publications

Patents
 
 
 
 

My Past Foam Research Capabilities at PPI






1. Batch Foaming Apparatus

2. Measurement of Solubility of Physical Blowing Agents in Polymers

3. Single screw extrusion set-up for High and Medium Density Foams

5. Tandem Extruders Set-up for Low Density Foams

6. Co-extrusion of A-B-A or A-B-C-B-A Structure ( B - Foamed Layer )

7. Process Development for Expanded Beads molding

7. Developed Technology for Foaming HDPE, LDPE, PP, PS, Rigid PVC, PUR, PET and thermoplastic elastomer by gas or liquid injection

8. Foam Characterization

9. Rheological Properties

10. Computer Simulation

11. Developing Knowledge Base for Scale-up
 
 
 
 
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Selected Publications on Inert Gas Extrusion Foaming


  1. Marino Xanthos and Subir K. Dey, “Foam Extrusion of Polyethylene Terephthalate (PET)”, Foam Extrusion, Principles and Practice, Edited by S.T. Lee, Technomic Publishing Company, 2000
  2. S. K. Dey, M. Xanthos, Q. Zhang and C. Wan, “ Extrusion Foaming of PET/PP Blends using Inert Gas”, Foam Plas 2000, May 16 & 17, 2000, Hyatt Regency O’Hare, Chicago, IL, arranged by Schotland Business Research, Inc, 16 Duncan Lane, Skillman, NJ 08558, Tel:(609) 466 9191.
  3. Q. Zhang, S. K. Dey and M. Xanthos, “ Dissolution of Atmospheric Gases in Polystyrene in Single and Twin-Screw Extruders”, Foams 2000, Second International Conference on Thermoplastic Foam Processing Technology to be held at Hilton, Parsippany, NJ, USA on Oct. 24-25, 2000
  4. M. Xanthos, S. K. Dey and U. Yilmazer, “ Processing and Properties of PET Foam Laminates for Building / Construction Applications”, Foams’99, First International Conference on Thermoplastic Foam, Parsippany Hilton, NJ, USA, Oct. 19-20, 1999, ibid. Plastics Engineering, Jan. 2000, p 39
  5. M. Xanthos, U. Yilmazer, S. K. Dey and J. Quintans, “ Melt Viscosity of Polyethylene Terephthalate Resins for Low Density Extrusion Foaming”, Polym. Eng. Sci., March 2000, vol 40, No 3, page 554
  6. M. Xanthos, S.K. Dey, Q. Zhang and J. Quintans,” Parameters Affecting Extrusion Foaming of PET by Gas Injection”, J. Cellu. Plast., vol 36, March 2000, page, 102.
  7. M. Xanthos, R. Dhavalikar, V. Tan, S. K. Dey and U. Yilmazer, “ Properties and Applications of Sandwich Panels Based on PET Foams”, ANTEC 2000
  8. N. Faridi, S.K. Dey, C. Wan, and M. Xanthos, “Use of Polyolefin Additives in Inert Gas Extrusion Foaming of Polystyrene”, ANTEC 2000
  9. Q. Zhang, M. Xanthos and S. K. Dey, “ Parameters Affecting the In-Line Measurement of Gas Solubility in Thermoplastic Melts During Foam Extrusion “, ANTEC 2000
  10. D.W. Yu, S.K. Dey, F. Pringgosusanto and M. Xanthos, “Branching of Polypropylene with a Polyfunctional Monomer for Extrusion Foaming and Thermoforming Applications “, ANTEC 2000
  11. "Processing and Properties of PET Foam Laminates for Building/Construction Applications", M. Xanthos, S.K. Dey and U. Yilmazer, Proc. of First International Conference on Thermoplastic Foam, Foams99, Oct. 19-20, 1999, Parsippany, NJ, page 55.
  12. "Parameters Affecting Extrusion Foaming of PET by Gas Injection", M. Xanthos, S.K. Dey, Q. Zhang and J. Quintans,ANTEC'99, SPE Preprint page 2109.
  13. "In-Line Measurement of Gas Solubility in Polystyrene and Polyethylene Terephthalate Melts During Foam Extrusion", accepted for presentation at the Winter Annual Meeting of ASME ( American Society of Mechanical Engineers ), Anaheim, CA Nov. 15-20, 1998.
  14. "Sheet Extrusion of Foamed Polyethylene Terephthalate", M. Xanthos, S.K. Dey and Q. Zhang, Presentation at the 1998 Polymers, Laminations and Coatings Conference.
  15. " Production of PET Foam with Viscosity Modifier ",S.K. Dey, M. Xanthos. and Q. Zhang, FoamPlas Conference’98 (May 1998).
  16. " Effect of Resin Rheology on the Extrusion Foaming Characteristics of PET ", M. Xanthos, Q. Zhang, S.K. Dey, Y. Li, and U. Yilmazer, Journal of Cellular Plastics, V34, N6,p498, 1998; ibid presented at Proc. 56th SPE ANTEC, 1998.
  17. " Method of Preparing Thermoplastic Foams using a Gaseous Blowing Agent" J. A. Biesenberger, S.K. Dey and D.B. Todd, US Patent # 5,707,573, January 13, 1998.
  18. " On-Line and Off-Line Gas Solubility Measurements in Foamable Thermoplastics ", N. Faridi, S.K. Dey, M. Xanthos and Q. Zhang,. Thirteenth International Polymer Processing Society Meeting, Meadowlands Hilton Hotel, Secaucus, NJ, USA, June 10 - 13, 1997.
  19. " Measurement of Solubility of Gases in Semi-crystalline Polymers ", N. Faridi, S.K. Dey and A. Chawda, Proc 55th SPE ANTEC, 2,221 (1997).
  20. . " Measurement of Gas Solubility in Thermoplastic Melts During Foam Extrusion ", S.K. Dey, Q. Zhang, N. Faridi and M. Xanthos, Proc 55th SPE ANTEC, 1988 (1997).
  21. " Use of Inert Gases in Extruded Medium Density Polypropylene Foams ", S.K. Dey, P. Natarajan, M. Xanthos and M.D. Braathen, J. Vinyl & Additive Tech., Dec. 1996, Vol. 2, No. 4, page 339.
  22. " Recent Developments in Inert Gas Foaming of Extruded Thermoplastics ", S.K. Dey and M. Xanthos, Foam Conference’96, Dec. 10-12, 1996, Somerset, NJ, page 17.
  23. " Use of Inert Gases in Extruded Medium Density Polypropylene Foams ", S.K.Dey, P. Natarajan, M. Xanthos, Marianne Dale Braathen, Proc. 54th SPE ANTEC, 1955 (1996).
  24. " Inert-Gas Extrusion of Rigid PVC Foam", S.K.Dey, C.Jacob and M. Xanthos, J. of Vinyl & Additive Tech. ", 2, 1, 48 (1996).; ibid Proc. 53th SPE ANTEC, 4138 (1995)
  25. " New Foam Extrusion Technology is ‘Environmentally Friendly' ", M.C. Gabriele, Plastic Technology, 20, Aug., 1995.
  26. " Inert Gases as Physical Blowing Agents for ‘Green’ Plastics Foams ", M. Xanthos, J. Biesenberger, S.K. Dey, PPS 11th Annual Meeting, March 27-30, 1995, Seoul, S.Korea.
  27. " Inert Gases as Alternative Blowing Agents for Extruded Low density Polystyrene Foam ", C. Jacob, S.K. Dey, Journal of Cellular Plastics, 31, 1, 38(1995).
  28. " Inert-Gas Foam Extrusion Technology ", PPI & NJPEC seminar, September 26, 1994, Holiday Inn, Somerset, New Jersey.
  29. " Inert Gases as Alternative Blowing Agents for Extruded Low density Polystyrene Foam ", C. Jacob, S.K. Dey, Proc. 52th SPE ANTEC, 1964 (1994)
  30. " Effect of Physical Blowing Agents on Crystallization Temperature of Polymer Melts ", S.K. Dey, C. Jacob, J.A. Biesenberger, Proc. 52th SPE ANTEC, 2197 (1994)
  31. " Monitoring Continuous Compounding Through On-Line Instrumentation", S.Dey, C.Jacob and M.Xanthos, SPE. Retec, "Continuous Compounding in the ‘90’s ", Somerset, NJ, Nov-Dec, 1993
  32. " Inert Gases as Alternative Foaming Agents For Thermoplastics ", C. Jacob and S,K. Dey, Polymer Processing Society Regional Meeting for the Americas, August 8-11, 1993, West Virginia University, MorganTown, WV, USA.
  33. " Low Density Foams From Environmentally Inert Physical Blowing Agents ", S.K. Dey, PPI Publication, April 1993.
  34. " Measurement of Solubility of Gases in Polymer Melts ", S.K. Dey, Adv. Polym. Technol, 10, 4,317(1990).
  35. " Measurement Of Gas Solubility and Relationship to Extruded Foam Properties: A New Apparatus and some Data on Nitrogen in Polyolefins ", S.S. Dagli, R.F. Staats-Westover and J.A. Biesenberger, 47th SPE ANTEC, 889 (1989)
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Patents

 " Method of Preparing Thermoplastic Foams using a Gaseous Blowing Agent ", J.A. Biesenberger, S.K. Dey and D.B. Todd, US Patent # 5,707,573, January 13, 1998.
 
 

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For more information please call

Subir K. Dey

subirdey@yahoo.com

Tel. # (843) 383 7963

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