news
PTI says study proves performance of PET
Processing Technologies International (PTI) has released the findings of a study that it says proves the effectiveness of virgin PET as a barrier cap layer. It says that the study “reaffirms FDA guidelines for the use of virgin PET cap layers as functional barriers over PCR PET flake materials for direct food packaging use at room temperature”. The study, carried out in conjunction
with Plastic Technologies Inc and Container Science, found that a 1-mil- thick virgin PET cap layer meets the functional barrier requirements, eliminating surface contaminates within multilayer food packages made of PCR PET materials for room temperature (70F/21°C) applications. The study was prompted by a recent
report by Frank Welle of the Fraunhofer Institute for Process Engineering and Packaging (IVV), which questioned the efficacy of an ABA structure with PET recyclates behind a functional barrier – and suggested that the virgin cap layer may become contaminated during extrusion, rendering the functional
barrier inadequate. The Fraunhofer report findings were based on testing recycled PET packaging at temperatures as high as 212F/100°C, which is not within the guidance stipu- lated by FDA recommendations, accord- ing to PTI. “Our study set out to examine the
elevated application temperature relevance used as part of the Fraunhofer assessment and reaffirm virgin PET for suitability as a functional barrier and its corresponding FDA guidelines,” said Sushant Jain, senior scientist for applications and technology at PTI. PTI performed four different simula- tions that modelled the production of a 40-mil-thick PET sheet with a 10/80/10% virgin/regrind/virgin layer structure at a combined rate of 2000pph. In each case, the results showed that virgin cap layers maintained its suitability as a functional barrier, said PTI. ❙
www.ptiextruders.com ❙
www.containerscience.com ❙
www.plastictechnologies.com ❙
www.ivv.fraunhofer.de/en
Hostalen ACP for China plant
Shandong Yuhuang Shengshi Chemical is to use LyondellBasell’s Hostalen ACP polyethylene process technology to build a new 200,000 tonnes/year high density polyethylene (HDPE) plant. The plant will be built in its petrochemi-
cal complex at Heze in Shandong province, and is scheduled for start-up in 2018. Song Juhe, vice general manager of Shandong Yuhuang Shengshi Chemical, said: “We selected this process technol- ogy for its exceptional ability to produce high-performance HDPE products, and LyondellBasell’s long term commitment to its clients.” Hostalen ACP process technology
www.filmandsheet.com
manufactures multi-modal HDPE resins with a range of mechanical and process- ing advantages, for applications including film and pipe. “The market demands high-perfor-
mance HDPE, and our multi-modal technology effectively meets these needs,” said Dan Coombs, EVP for global manufacturing, refining, projects and technology at LyondellBasell. LyondellBasell’s other polyolefin
technologies include Spheripol, Spheri- zone, Metocene PP, Lupotech and Spherilene, which together have more than 250 licensees. ❙
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STRETCHING THE LIMITS
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Düsseldorf May 04-10
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March 2017 | FILM & SHEET EXTRUSION 11
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