Its introduction extends the use of PLA, a bio-based alternative to petrochemical-derived products, to applications beyond chilled-storage packaging.
Photo (a): DuPont
New DuPont™ Biomax® Thermal increases the temperature threshold of PLA, extending its use to non-chilled food packaging applications. Photo (a) shows a PLA tray with 2 percent Biomax® Thermal 300, exposed to 70ºC for 1 hour.
Photo (b): DuPont
Photo (b) shows a PLA tray without modifier, also exposed to 70ºC for 1 hour.
New Biomax® Thermal 300 is a U.S. Food and Drug Administration-compliant polymer modifier that increases the dimensional stability of PLA packaging materials to temperatures of up to 95°C when used at recommended levels (between 2 percent and 4 percent by weight) and in two-stage forming processes, far above temperatures that packages could be exposed to during storage and shipping. The addition of Biomax® Thermal 300 to PLA at low levels has also been demonstrated to have a minimal impact on the material’s clarity, as well as to accelerate cycle times during two-stage thermoforming. Biomax® Thermal 300 contains 50 percent renewably-sourced content by weight.
“Because it is bio-based, PLA has strong appeal in food packaging such as produce clamshells and deli trays, as well as selected industrial applications,” said Susan Homan, North American global marketing manager for sustainable materials at DuPont Packaging. “However, due to its tendency to deform at temperatures of 55°C and above, its adoption to date has been largely restricted to the packaging of chilled food and beverages. By offering a modifier that raises the working temperature of PLA, DuPont hopes to enable a broader range of applications for the material.”
Biomax® Thermal is the second modifier for PLA to be introduced by DuPont. Biomax® Strong, toughening modifier launched in 2007, improves PLA by enhancing its processibility, durability, impact strength and flexibility in rigid structures, and acts as a process aid to improve extrusion productivity. Both of these modifiers hold the added benefit of being able to be added directly to the extrusion process (versus requiring masterbatching). The market introduction of Biomax® Thermal begins in the U.S., with rollout to Europe and Asia early in 2009.
“We are firmly committed to developing sustainable solutions, including solutions that improve the performance of other sustainable offerings in the market,” Homan said. “By improving the performance of bio-based and biodegradable products, Biomax® modifiers can help the packaging industry in achieving this mutually desirable goal.”
Now more than ever, consumers expect freshness, taste and convenience in packaged foods and beverages – and industry leaders such as DuPont continue to respond with innovations in materials and technology, including science-based solutions for improved sustainability. From renewably sourced materials such as Biomax® PTT resins and Biomax® TPS resins and sheets, to weight reducing DuPont™ Surlyn® resins, DuPont offers a wide line of high-performance polymers and additives to meet global packaging needs.
DuPont – one of the first companies to publicly establish environmental goals 18 years ago – has broadened its sustainability commitments beyond internal footprint reduction to include market-driven targets for both revenue and research and development investment. The goals are tied directly to business growth, specifically to the development of safer and environmentally improved new products for key global market.
DuPont Packaging & Industrial Polymers is a world-class manufacturer of high-performance resins and films for a variety of packaging and industrial applications. Its best known ethylene copolymer products include Surlyn® resins for packaging and industrial applications, Bynel® coextrudable adhesives, Selar® PA amorphous polyamide barrier resins, Nucrel® acid copolymers, Elvax® EVA copolymers, Elvaloy®, Elvaloy® AC, Entira™ and Fusabond® modifiers.
DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.
The DuPont Oval Logo, DuPont™, The miracles of science™ and Biomax® are registered trademarks or trademarks of E.I. du Pont de Nemours and Company or its affiliates.
Horst Ulrich Reimer | Du Pont
Hidden talents: Converting heat into electricity with pencil and paper
20.02.2018 | Helmholtz-Zentrum Berlin für Materialien und Energie
Contacting the molecular world through graphene nanoribbons
19.02.2018 | Elhuyar Fundazioa
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
20.02.2018 | Life Sciences
20.02.2018 | Medical Engineering
20.02.2018 | Physics and Astronomy