The SPE Library contains thousands of papers, presentations, journal briefs and recorded webinars from the best minds in the Plastics Industry. Spanning almost two decades, this collection of published research and development work in polymer science and plastics technology is a wealth of knowledge and information for anyone involved in plastics.
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Masumi Mizu | Taro Mitsudera | Tadashi Sengoku | Kiyotatsu Iwanami | Toshinori Yukino | Hiroshi Nishimura | Robert G. Weiler, September 2010
The purpose of this paper is to describe the development of a new class of Calcium/Zinc heat
stabilizer for clear rigid PVC applications. Typically, until this time, Organo-Tin based heat stabilizers
have been used for this application. Organo-Tin heat stabilizers offer excellent transparency and good
heat stability protection. Recently, Butyl-Tin based heat stabilizers have been designated as an
environmental Substance of Very High Concern (SVHC) in EU. This has led us to research and
develop alternative heat stabilizers for clear rigid PVC applications.
Liquid Barium/Zinc based heat stabilizers offer good transparency but they typically do not have
enough heat stability under rigid PVC processing conditions. They also have the environmental
problem of the heavy metal, Barium. Typical Calcium/Zn stabilizers have good heat stability, and are
environmentally more acceptable, but typically are deficient in transparency.
Our purpose in this paper is to describe a technique for selecting individual components for a high
transparency powder Calcium/Zinc heat stabilizer and to demonstrate that the transparency and heat
stability are suitable for the task of protecting clear rigid PVC applications. Three important technical
points necessary for improving transparency were described. First is refraction (Refractive index).
Second is scattering (particle size). And third is dispersion (compatibility). Ideal state satisfied these
three points.
Ken Walker | Alex Isarov | Tong Chen, September 2010
Viability of continued use of antimony oxide is among the topics of broad interest to PVC compound
suppliers as well as their end users. Existing and emerging regulatory mandates have continued to drive
an industry-wide effort to minimize use of antimony oxide in PVC, while being able to maintain adequate
fire performance when formulating the low-smoke compounds for a variety of applications such as
construction materials and wire and cable products.
Kim McLoughlin Senior Research Engineer, Global Materials Science Braskem
A Resin Supplier’s Perspective on Partnerships for the Circular Economy
About the Speaker
Kim drives technology programs at Braskem to develop advanced polyolefins with improved recyclability and sustainability. As Principal Investigator on a REMADE-funded collaboration, Kim leads a diverse industry-academic team that is developing a process to recycle elastomers as secondary feedstock. Kim has a PhD in Chemical Engineering from Cornell. She is an inventor on more than 25 patents and applications for novel polyolefin technologies. Kim is on the Board of Directors of SPE’s Thermoplastic Materials & Foams Division, where she has served as Education Chair and Councilor.
A Resin Supplier’s Perspective on Partnerships for the Circular Economy
About the Speaker
Gamini has a BS and PhD from Purdue University in Materials Engineering and Sustainability. He joined Penn State as a Post Doctorate Scholar in 2020 prior to his professorship appointment. He works closely with PA plastics manufacturers to implement sustainability programs in their plants.
A Resin Supplier’s Perspective on Partnerships for the Circular Economy
About the Speaker
Tom Giovannetti holds a Degree in Mechanical Engineering from The University of Tulsa and for the last 26 years has worked for Chevron Phillips Chemical Company. Tom started his plastics career by designing various injection molded products for the chemical industry including explosion proof plugs and receptacles, panel boards and detonation arrestors for 24 inch pipelines. Tom also holds a patent for design of a polyphenylene sulfide sleeve in a nylon coolant cross-over of an air intake manifold and is a Certified Plastic Technologist through the Society of Plastic Engineers. Tom serves on the Oklahoma Section Board as Councilor, is also the past president of the local Oklahoma SPE Section, and as well serves on the SPE Injection Molding Division board.
Joseph Lawrence, Ph.D. Senior Director and Research Professor University of Toledo
A Resin Supplier’s Perspective on Partnerships for the Circular Economy
About the Speaker
Dr. Joseph Lawrence is a Research Professor and Senior Director of the Polymer Institute and the Center for Materials and Sensor Characterization at the University of Toledo. He is a Chemical Engineer by training and after working in the process industry, he has been engaged in polymers and composites research for 18+ years. In the Polymer Institute he leads research on renewably sourced polymers, plastics recycling, and additive manufacturing. He is also the lead investigator of the Polyesters and Barrier Materials Research Consortium funded by industry. Dr. Lawrence has advised 20 graduate students, mentored 8 staff scientists and several undergraduate students. He is a peer reviewer in several journals, has authored 30+ peer-reviewed publications and serves on the board of the Injection Molding Division of SPE.
Matt Hammernik Northeast Account Manager Hasco America
A Resin Supplier’s Perspective on Partnerships for the Circular Economy
About the Speaker
Matt Hammernik serves as Hasco America’s Northeast Area Account Manager covering the states Michigan, Ohio, Indiana, and Kentucky. He started with Hasco America at the beginning of March 2022. Matt started in the Injection Mold Industry roughly 10 years ago as an estimator quoting injection mold base steel, components and machining. He advanced into outside sales and has been serving molders, mold builders and mold makers for about 7 years.
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How to reference articles from the SPE Library:
Any article that is cited in another manuscript or other work is required to use the correct reference style. Below is an example of the reference style for SPE articles:
Brown, H. L. and Jones, D. H. 2016, May.
"Insert title of paper here in quotes,"
ANTEC 2016 - Indianapolis, Indiana, USA May 23-25, 2016. [On-line].
Society of Plastics Engineers, ISBN: 123-0-1234567-8-9, pp. 000-000.
Available: www.4spe.org.
Note: if there are more than three authors you may use the first author's name and et al. EG Brown, H. L. et al.
