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Spring 2012
Volume 37
Number 1
Inside this issue:
ANTEC
2012
3-7
Book Re-
view 8
In Memory
of Dr. David
B. Todd
9-
10
Stay Con-
nected to
the Extru-
sion Divi-
sion
11
Upcoming
Webinars
12
Variable –Depth
T/C
13
SPE FastTrack
Training Program
15
Message from the TPC of Extrusion Division for ANTEC 2012
Once again ANTEC and NPE will be co-located, this time in sunny and warm Orlando, Florida. But of course it is not just the weather that will be spectacular; we will have the largest technical confer-ence in the plastics industry combined with greatest plastic trade show in the Americas. You will have the opportunity to be kept abreast of the latest technology advances while being able to pre-view the latest in equipment, materials, and services our industry has to offer. Contributing to this plastics technology extravaganza, your Extrusion Division has eight great technical sessions planned for ANTEC 2012. We start our program on Monday morning with something really new — two troubleshooting sessions: one fo-
cused on single screw extrusion and the other on twin screw extrusion. Following in the afternoon we have a joint session with Flexible Packaging on innovation in extrusion processing running parallel with a session on the fundamentals of extrusion processing. On Tuesday morning we hit the road running with sessions on single screw extrusion and dies and films. In the afternoon we continue with a session of twin screw extrusion and a second session on dies and films. The twin screw session (T23) will be especially heart-felt as it is offered in memory of the recently departed Dr. David B. Todd, an inter-nationally recognized engineer and a friend, colleague and mentor for many of us. We are honored to have two keynote speakers as part of the Extrusion Division’s tech-nical program. On Monday afternoon (Session M24) Professor Joao Maia from Case Western Reserve University will review the state of on-line sensoring in extrusion-based processes and discuss the efforts of his team to develop and implement ad-vanced on-line sensor technology. Then on Tuesday afternoon (Session T23) Dr. Paul Andersen from the Coperion Corporation will describe the continuing history of tech-nical advances in what many might consider a “mature” twin screw extruder industry. Both of these presentations are sure to be interesting and generate excitement. And…to celebrate the accomplishments of contributors to our industry, the Extrusion Division will once again host its Annual Business Meeting and Awards Reception. This will start at 5:30 PM on Tuesday evening. Hors d’oeuvres and refreshments are on us. So be sure to stop by…meet old friends, make new friends, celebrate the accomplish-ments of some of the “greats” of our industry…and…have a good time. We look for-ward to seeing you there! Joe Golba Technical Program Chair, Extrusion Division for ANTEC 2012 [email protected]
Page 2 Extrusion Division—Society of Plastics Engineers
Message from the Extrusion Division Chair
The board held its winter meeting in Phoenix in late January (pictures below). We had a very
productive meeting. I am excited about the many initiatives we have underway to enhance our
mission of providing knowledge and networking opportunities to our members:
Joe Golba, this year’s ANTEC technical program chair for the division, has put together a
great program for ANTEC, to be co-located with NPE in Orlando in early April. The quality of
the papers submitted for our sessions was outstanding. Many thanks to the authors, and to Joe
and the Paper Review Committee for reviewing the papers and working with the authors to get
the papers finalized. By the way, being a member of the Paper Review Committee is a great
way to get involved with the Division. Just contact me or one of the board members if you like
to be considered for next year’s ANTEC.
Don Dunnington of K-Tron led the board through an indoctrination of the use of social
media and other tools to reach young professionals. Special thanks go out to Don, and to Jaime
Gomez for lining up Don as our guest speaker. Mark Wetzel is leading a team looking at how to use these tools to
attract more young professionals to our division.
As part of this effort to use the new media, Karen Xiao has created a new blog for the division. Check it out at
http://speextrusiondivision.wordpress.com
We have created a new webinar series on fundamentals of extrusion that is deeply discounted for our Division’s
membership. Eldridge Mount has led the effort and many of our board members will be presenters. Look for an-
nouncements in this newsletter and elsewhere. The discount alone is enough to justify your membership.
The board is developing ideas to extend our support for extrusion education beyond the highly successful Lew Er-
win scholarship. Look for more details on this during the year.
We continue to add content to our website such as the newly created Classic ANTEC section, a feature dedicated to
bringing back some of the works that influenced the growth and development of the extrusion process. Check it out
at http://www.spexdiv.com/ We are working on a long range plan to upgrade the look of our website, including
adding the capability of members to contribute to the Extrusion Wiki.
Our board continues to contribute the Society’s leadership. Greg Campbell, our councilor, has been elected to the
Executive Committee. Mark Wetzel has been appointed by the board to fill out Greg’s term as councilor. Mark
Spalding is the national ANTEC Technical Program Chair once again this year and will receive the Honored Ser-
vice award at ANTEC.
Look for a Minitec on Extrusion in the fall. Details to come soon.
Barry Morris
Chair — SPE Extrusion Division
Page 3 Extrusion Division—Society of Plastics Engineers
Top 5 Reasons to Attend ANTEC
1. Broaden Your Understanding of the Plastics Industry - Attend sessions exploring the full
spectrum of the plastics industry. ANTEC is the place to gain exposure to developments and
people from throughout the entire industry.
2. Network - Meet with fascinating, informed and creative colleagues from around the world to
share insights from a broad range of disciplines and industries within plastics.
3. Visit with Exhibitors - Walk the tradeshow floor and talk with representatives from leading
companies who offer solutions for your business.
4. Understand the Impact of New Technology - Confer with the plastics industry's leading ex-
perts to learn what new technologies and techniques are being developed today.
5. Build New Skills - ANTEC offers seminars, workshops and other forums for people of all levels
within the plastics industry. Take advantave of one or more of our special sessions to enhance
your skills and increase your knowledge.
The Extrusion Division launch of the first Extrusion Wiki in early 2009 has met with broad acceptance.
Board of Directors Member Michelle Curenton was instrumental in developing the Wiki. The Extrusion
Wiki will allow you to search a vast database of information concerning extrusion as well as being able to
submit additional content.
Check it out by clicking here!
Page 4 Extrusion Division—Society of Plastics Engineers
Come network with your colleagues at the
Extrusion Division Awards Reception on Tuesday afternoon, April 3rd!!
Time Topic Speaker
Monday After-noon
1:30 PM
On-Line Sensoring in Extrusion-Based Processes: Past, Pre-sent and Future
Prof. Joao Maia Case Western Re-serve University
Tuesday Af-ternoon 1:30 PM
Co-rotating Fully Intermeshing Twin-Screw Extruders: Ad-vancements for Improved Performance and Productivity
Dr. Paul Andersen Coperion Corpora-tion
Page 5 Extrusion Division—Society of Plastics Engineers
ANTEC Program
Monday — April 2, 2012
Monday
AM Troubleshooting – Single Screw Extrusion – M8
Moderator Eldridge Mount
Time Manuscript Title Submitting Author
8:00 Troubleshooting Rate Limitations for Melt-Fed Single-Screw Extruders Mark Spalding
8:30 Effect of Material Viscosities on Purging in Extrusion Processes Janina Overbeck
9:00 Techniques for Troubleshooting and Analysis of Blown Film Relative to
Property Development Greg Campbell
9:30 Troubleshooting Coex Film Problems By Considering Process-Property
Relationships Barry Morris
10:00 Troubleshooting TPU Extrusion for Rate Limitations Due to Solids in the
Extrudate Kun Hyun
Monday
AM Troubleshooting – Twin Screw Extrusion – M9
Moderator Jaime Gomez
Time Manuscript Title Submitting Author
8:00 Troubleshooting Plastics Industry Powder Storage & Handling Problems
Using Flow Properties Brian Pittenger
8:30 A Practical Guide to Scale-up of New Products from Development to Manu-
facturing Jeff Cicerchi
9:00 Troubleshooting the Co-rotating Twin-Screw Extruder Rich Kanarski
9:30 Tips for Optimizing Twin-Screw Extruder Performance Bert Elliott
10:00 New Developments in Co-Rotating Twin-Screw Extrusion Elements for
High Wear Applications Tom Kvinge
Monday PM Innovation in Extrusion Processing – Joint Session with Flexible Packaging Division – M24
Moderator Michelle Curenton
Time Manuscript Title Submitting Author
1:30 On-Line Sensoring in Extrusion-Based Processes: Past, Present and Future Joao Maia
2:00 An Easy Approach of Measuring the Residence Time Distribution with the
Use of NIR-Spectroscopy Andreas Witschnigg
2:30 Melt Extrusion of a Pharmaceutical Compound Containing a Poorly Soluble
Thermolabile Drug Adrian Kelly
3:00 Processed-Structure-Property Relationship in Solid-State Shear Pulveriza-
tion: Parametric Study with Neat Polypropylene Katsuyuki Wakabayashi
3:30 Preparation and Characterization of PP-PET Sea-Islands Type Biocompo-
nent AS-Spun Fibers by High Speed Melt Spinning Wan-Gyu Hahm
4:00 Self-Reinforcement of Uniaxially Stretched Polycarbonate Film Andrea Wibbeke
4:30 Geometry of Triple Screw Extruders to Promote Mixing Yingsheng Xing
5:00 The Effect of Machine Direction Orientation on Multilayer High Barrier
Films Danielle Frojo
Page 6 Extrusion Division—Society of Plastics Engineers
ANTEC Program
Monday — April 2, 2012
(Continued)
ANTEC Program
Tuesday — April 3, 2012
Monday PM Fundamentals in Extrusion Processing – M25
Moderator David Bigio
Time Manuscript Title Submitting Author
1:30 Look Upstream to Avoid 'GIGO' Pitfalls in Extrusion Jaime A. Gomez
2:00 Practical Heat Transfer Implications of Slip Boundary Conditions Estanislao Ortiz-Rodriguez
2:30
Investigation of Die Drool Phenomenon for Linear HDPE Polymer Melts Hav-
ing Identical Polydispersity Indexes But Different MZ+1 Average Molecular
Weights
Martin Zatloukal
3:00 Notes on the Micropelletization of Polymer Resins William Aquite
3:30 Rheology and Melt Fracture of Poly(Lactides) Savvas Hatzikiriakos
4:00 Investigation of Processing and Rheological Parameters Effect on Film Blowing
Process Stability by Using Variational Principles Martin Zatloukal
4:30 Drop of Pressure of Polymer Melts in Microscopic Channels Thomas Ottnad
5:00 Computer Simulation of Rubber Extrusion in the Capillary Die Using Viscoe-
lastic Models Min-Young Lyu
Tuesday
AM Single Screw Extrusion – T6
Moderator Steve Schick
Time Manuscript Title Submitting Author
8:00 Lateral Stress and Density Measurements for PC, ABS, HIPS and PP Bulk
Resin Feed Stock Steve Derezinski
8:30 Improved Approximations in Thermal Properties for Single Screw Extrusion Maria Noriega
9:00 Improving Thermal Efficiency of Single Screw Extrusion Adrian Kelly
9:30 A Fully Three-Dimensional Numerical Approach Simulating the Melting Zone
in a Single-Screw Extruder Sebastian Grammer
10:00 Examination of the Performance of a High Speed Single Screw Extruder for
Several Different Extrusion Applications John Christiano
Tuesday
AM Dies & Films I – T7
Moderator Ken Forzaiti
Time Manuscript Title Submitting Author
8:00 Comparison of Water-Quench Versus Air-Quench Blown Film Processes -
Part I: Flat Film Properties Robert Armstrong
8:30 Comparison of Water-Quench Versus Air-Quench Blown Film Processes -
Part II: Thermoformability Robert Armstrong
9:00 Thickness Profile Effects on the Build-up Process of Film-Rolls in the Wind-
ing Process Felix Heinzler
9:30 Optimization and Sensitivity Analysis of a Film Die Hossam Metwally
10:00 Improved Film Die Flow Uniformity Using Optimization Methods Coupled
with Finite Element CFD Analysis Patrick C. Lee
Page 7 Extrusion Division—Society of Plastics Engineers
ANTEC Program
Tuesday— April 3, 2012
(Continued)
Tuesday PM Twin Screw Extrusion – In Honor of David B. Todd – T23
Moderator Costas Gogos & Kun Hyun
Time Manuscript Title Submitting Author
1:30 Co-rotating Fully Intermeshing Twin-Screw Extruders: Advancements for
Improved Performance and Productivity Paul Andersen
2:00 Distribution of Specific Energy in Twin-Screw Corotating Extruders Using
One-Dimensional Process Simulation Adam Dreiblatt
2:30 Variable Strength Stress Bead Analysis in a Twin Screw Extruder David Bigio
3:00 Chain Extension of Low Viscous PA 66 in Reactive Extrusion Process in
Order to Extrude Thick-Walled Pipes Dan Zhang
3:30 Kinetic, Thermodynamic and Structural Factors Governing the Dispersion of
Nanoclays in Polymer Melts Mark Wetzel
4:00 Viscoelastic Properties of CNT-PC Compounds: Effect of Compounding
Method, CNT-Type and Testing Protocol Joe Golba
4:30 Experimental Investigations on Vane Extruder for Polymer Short Thermo-
mechanical History Processing Qu Jin-ping
Tuesday PM Dies & Films II – T24
Moderator Karen Xiao
Time Manuscript Title Submitting Author
1:30 A New Flow Channel Design of Film and Sheet Extrusion Die Masaki Ueda
2:00 Effect of Typical Melt Temperature Non-Uniformity on Flow Distribution in
Flat Dies Olivier Catherine
2:30 Extrusion Dies for Wide Operating Range by Automatic Die Design Kenny Saul
3:00 Simulating the Parison Geometry in Extrusion Blow Molding with Viscoelas-
tic Material Models Christian Windeck
3:30 Flow Instability in Multi-Layer Cable Coating Dies Jiri Vlcek
4:00 Effect of Polymer Viscosity on Post-Die Extrudate Shape Change in Coex-
truded Profiles Mahesh Gupta
5:00 ExDiv Meeting, Awards, Wine & Cheese Reception
Page 8 Extrusion Division—Society of Plastics Engineers
Book Review By
Mark A. Spalding The Dow Chemical Company
Extrusion of Polymers, Theory and Practice Chan I. Chung
2nd Edition
This book focuses on the fundamentals and design of single-screw
extruders, providing the reader with the necessary tools for basic
equipment design. The first three chapters provide basic knowledge
for single-screw extruders, twin-screw extruders, and polymer sci-
ence. These chapters set the stage for Chapters 4 and 5 for theories
on single-screw extrusion, screw design, scale-up, and high perfor-
mance screw designs. Prof. Chan Chung was one of the original in-
novators in barrier screw designs and the co-inventor of the very
successful Energy Transfer (ET) high performance screw. Three new
chapters were included with the second addition: i) Viscoelastic Ef-
fects of Melt Flow written by Joseph Dooley, ii) Die Designs, and
iii) a chapter on a Special Single-Screw Extruder with Channels on
the Barrel. Dooley’s viscoelastic effects chapter provides experi-
mental and numerical details for layer rearrangement of multi-layer
structures due to normal forces. The chapter on dies provides details
for many commercially available dies and their operation. Multilayer
feedblocks and coextrusion are covered. The book is a valuable asset
to designers and engineers working in the field of single-screw
screw extrusion and dies.
Proceeds from the sale of this book are donated to the SPE Extru-
sion Division — Thank you, Prof. Chung!
Page 9 Extrusion
In Memory of Dr. David Burton Todd
(1925 – 2012)
David Burton Todd, PhD, (86), an internationally recognized chemical engineer, passed away February 1, 2012, at his home in West Wind-sor, NJ. He had lived in the Princeton and West Windsor area since 1987. Born in Chester, PA, David B. Todd grew up in Freedom, ME. He re-ceived his B.S. and M.S. degrees in chemical engineering from North-western University, and his PhD from Princeton University. A year of his graduate work was spent as a Fulbright scholar in Delft, Nether-lands. He enlisted in the Navy in World War II, served in the North At-lantic and retired from the Naval Reserve as a Commander in 1972. Dr. Todd's professional career spanned 60 years; he never successfully
retired. Initially he was employed in California as an engineer, then supervisor, at a Shell Oil research facility. He moved to the Chicago area to become Manager of Engineering at the Podbielniak Division of Dresser Industries in 1963, before becoming Technical Director in 1967 at Baker Perkins, an equipment manufacturer in Saginaw, Michi-gan. Upon transfer to the New Jersey branch, he was promoted to Vice President, Technology. In 1989, Dr. Todd founded Todd Engi-neering to provide consulting services, primarily to the plastics indus-try. He served as principal consultant to the Polymer Processing Insti-tute (PPI), as an adjunct professor at Stevens Institute of Technology in Hoboken, and later as a research professor at New Jersey Institute of Technology in Newark. Dr. Todd was active in professional organizations, being elected to the grade of Fellow in the American Institute of Chemical Engineers and in the Society of Plastics Engineers. He was a member of the American Chemical Society, the Naval Institute, and the international Polymer Processing Society, receiving several awards for his technical contributions. He received 22 U.S. patents and authored more than 100 technical articles. His book Plastics Compounding: Equipment and Processing was translated into Chinese.
Page 10 Extrusion Division—Society of Plastics Engineers
In Memory of Dr. David Burton Todd
(1925 – 2012)
Dr. Todd also actively participated in civic affairs. In Michigan, he served on the boards of the Saginaw Symphony, the United Way, and several township school boards. He helped found Group Health Service (an HMO) and served as chairman of the board of directors until its acquisition by Blue Cross. He served for seven years on the Environmental Commission of Montgomery Township, NJ. Dr. Todd is survived by his wife, Mari-lyn Sweeney Todd. He was previously married to Mary Boekhoff Todd, who
predeceased him in 2000. His sister, Mary Todd Pfeifer, McMinnville, OR, survives him. Surviving also are his daugh-ter Rebecca Todd and son-in-law Charles Klein in Berkeley, CA; three sons and daughters-in-law: Brian and Denise Todd in York, PA, Raymond Todd and Kelley Lehman in Indian Hills, CO, and Clifford and Tina Todd in Midland, MI; five grandchildren; three step-daughters and their husbands: Ja-net and Daniel McCallum, Kathy and Chris Miano, and Ellen and Steve Allsteadt; and five stepgrandchildren.
A Celebration Of Life service will be held on Saturday, March 10, at 2 p.m., at the Unitarian Universalist Congregation of Princeton.
Memorial contributions may be made to the Unitarian Universalist Congregation of Princeton, 50 Cherry Hill Road, Princeton Township, NJ 08540, (609) 924-1604, or to the Hospice Program of Prince-
ton HomeCare Services, 208 Bunn Drive, Princeton, NJ 08540, (609) 497-4900.
Page 11 Extrusion Division—Society of Plastics Engineers
Click the links below to connect you directly to our pages!
FOLLOW US ON
SPE EXTRUSION DIVISION
BLOG PAGE
Cincinnati Milacron Extru-sion Systems/Milacron LLC 4165 Half Acre Road Batavia, OH 45103 Phone: (513) 536-2000 E-mail:
Cincinnati Milacron Extrusion Sys-
Milacron is a leader in providing extrusion technology for Plastics & Bio-
Fiber Composite applications. Focus is on applying extensive twin & sin-
gle screw technology to extrusion process needs. Capabilities range from
complete systems to unit extruders, as well as barrels & screws and retro-
fit systems for productivity improvements/upgrades to existing Milacron
Visit SPE Extrusion Division’s NEW WEBSITE
Page 12 Extrusion Division—Society of Plastics Engineers
TOPIC DESCRIPTION PRESENTER
1 Basic mechanisms
of single screw ex-
truders
This session will focus on the solids conveying, melting
and metering functions of a single screw extruder and
how these functions combine to determine the perfor-
mance of a single screw design
Dan Cykana
2 Understanding and
measuring Extruder
Performance
This session will focus on the measurement, plotting and
understanding of extrusion performance measurement.
The participant will learn what to measure, how to meas-
ure the important parameters and how to interpret the da-
ta and use it to determine the suitability of the screw de-
sign for their process
Tim Womer
3 Rheology and poly-
mer flow
This session will focus on the development of basic un-
derstanding of the flow characteristics, rheology, of poly-
mers. In order to predict the output of an extruder that is
attached to a die, the rheology of the polymer must be
understood to be able to calculate the back pressure effect
from the die on the pumping ability of the screw. Newto-
nian and power law rheology will be explored and the
concepts of stress and strain rate will be developed. The
effects of shear rate and melt temperature on the viscosity
will be developed and their effect on the screw’s de-
signed expected output demonstrated
Greg Campbell
4 Review of Screw
design technology
This session will focus on the screw designs used in ex-
trusion. Various types of screw designs will be described
in terms of their controlling concepts of operation and the
impact the design features have on overall performance.
Standard, barrier, energy transfer and other screw designs
will be described
Steve Derezinski
5 Up grading the ca-
pacity of an existing
extrusion system
This section will show how to evaluate an existing screw
design and determine the maximum output available.
Next, how to specify the increase in extruder output and
determine which screw technology to use for the increase
in system output, In addition, to determine the capability
of the drive necessary to increase the output and if neces-
sary how to increase the drive capacity for the higher out-
put. In addition how to estimate the increase in head
pressure from the down stream equipment to determine if
a need exists to modify the die and melt piping.
Mark A. Spalding
6 Extrusion Safety
This section will review the prudent safety concerns asso-
ciated with single screw extrusion systems
Eldridge Mount
Stayed Tuned for the Upcoming Webinars
Brought to you by the Extrusion Division
Page 13 Extrusion Division—Society of Plastics Engineers
Underappreciated tool: Variable-Depth Melt Thermocouple By
Charlie Martin Leistritz
Polymer flow through a melt pipe rarely has a uniform temperature throughout the cross-section. There is almost always a gradient, generally with higher melt temperatures some distance in from the pipe wall. This gradient may be negligible, or it can be 40ºC or even higher. With any extru-sion system making a finished product a temperature gradient can cause big problems, mainly from varying viscosities entering the die at different points across the flow bore. The simplest tool avail-able for measuring the melt temperature gradient is a Variable-Depth Melt Probe.
These devices generally have a bad reputation in the industry be-cause, by their nature, they have a short lifespan (polymer often creeps up inside the moveable center probe within a few days and seizes it in one position). Even with this limitation though, it’s an extremely useful tool. If the probe only works even one day you can run a series of experiments and acquire data that’s near priceless, and that you can’t get any other way. One immediate way gradient data can be used is to find out what temperature to set the melt pipe zone set-points. For instance if the melt pipe zones have been set at 180ºC and you find that the center core of the melt flow is at 225ºC, that’s a significant gradient. You’ll gen-
erally attain far more uniform die flow by raising the pipe set-points to 220-225ºC, to reduce the temperature gradient. Even though 225ºC may be higher than desired, the variable probe shows that most of the flow is at that temperature anyway regardless of the pipe wall setpoint. This is just another demonstration of the fact that colder melt pipes can’t be used to cool the melt, because of laminar flow and the fact that most polymers are outstanding insulators.
Additional Platinum SponsorsAdditional Platinum Sponsors
ACS GroupACS Group
Page 14 Extrusion Division—Society of Plastics Engineers
Additional Extrusion Division Sponsors
Additional Gold SponsorsAdditional Gold Sponsors
NDCNDC
Teel PlasticsTeel Plastics
Silver SponsorSilver Sponsor
Polymer Center for ExcellencePolymer Center for Excellence
Would you like to support the Extrusion Division?
Please contact Dan Smith at
Page 15 Extrusion Division—Society of Plastics Engineers
Page 16 Extrusion Division—Society of Plastics Engineers
Page 17 Extrusion Division—Society of Plastics Engineers
Page 18 Extrusion Division—Society of Plastics Engineers
Page 19 Extrusion Division—Society of Plastics Engineers
Newsletter Sponsorships are available
from Bronze through Platinum.
Check out the SPE Website for valuable
information for all members
Highlight your company by becoming a Newsletter Sponsor.
Contact Dan Smith or any Extrusion Division Board member for more information.
Page 20 Extrusion Division—Society of Plastics Engineers
2012 SPE Extrusion Division Board
Andersen, Paul G., Ph.D. Coperion Corporation [email protected]
Anzini, David Zip-Pak [email protected]
Biesenberger, Jeff Advanced Drainage Systems [email protected]
Bigio, David I., Ph.D. University of Maryland [email protected]
Campbell, Gregory A., Ph.D.
(Executive Committee)
Clarkson University [email protected]
Christiano, John Davis-Standard LLC [email protected]
Curenton, Michelle
(President/Chair-Elect)
Solo Cup [email protected]
Cykana, Daniel Extrusion Solutions, LLC [email protected]
Derezinski, Stephen J., Ph.D. Extruder Tech, Inc. [email protected]
Golba, Joseph C., Jr., Ph.D. PolyOne [email protected]
Gomez, Jaime KTron [email protected]
Gould, Russell J. RG Associates [email protected]
Karszes, William Plastics Associates [email protected]
Larson, Keith ACS Colortronics [email protected]
Martin, Charlie Leistritz [email protected]
Mchouell, Tom Polymer Center for Excellence [email protected]
Morris, Barry A., Ph.D.
(President/Chair)
DuPont [email protected]
Mount, Eldridge, III, Ph.D. EMMOUNT Technologies [email protected]
Oliver, Gary Extrusion Dies Industries [email protected]
Perdikoulias, John, Ph.D. Compuplast Canada [email protected]
Puhalla, Mike Milacron Incorporated [email protected]
Sagar, Surendra Macro Engineering & Technology
Inc.
Schick, Steven F. Teel Plastics Inc. [email protected]
Schildknecht, Helmut List Incorporated [email protected]
Smith, Daniel Maag [email protected]
Spalding, Mark, Ph.D. The Dow Chemical Company [email protected]
Wagner, John R., Jr.
(Treasurer)
Crescent Associates [email protected]
Wetzel, Mark
(Past President/Chair,Councilor)
DuPont [email protected]
Womer, Tim TWWomer & Associates, LLC [email protected]
Xiao, Karen, Ph.D. Celgard LLC [email protected]
Extrusion Division
Society of Plastics
Engineers
“The objective of the Extrusion Division shall be to
promote the scientific and engineering education and
knowledge relating to the extrusion of plastics.”
Looking for answers to your technical questions? Ask
Industry Experts at the Extrusion Division Website:
“Ask the Experts”
Newsletter questions or comments
contact:
Karen Xiao
Celgard LLC
13800 South Lakes Drive
Charlotte, NC 28273
Page 21 Extrusion Division—Society of Plastics Engineers