'Sustainable,Renewable' Materials Get Plenty of Attention At NPE2015

By: Lilli Manolis Sherman 2. April 2015


Suppliers of biopolymers, such as MHG, and others who have bio-based raw material content and recycling content in their product offerings, such as DAK Americas, Charlotte, N.C., were among the several material suppliers at NPE2015 who saw plenty of action.


            MHG (Meridian Holdings Group) reported an “astounding level of positive response” at the big show, where it showcased its new generation of patented biopolymers based on PHA, as well as services such as R&D and toll manufacturing for bio-based materials the company now offers to business partners. This included the launch of a new website—, which provides all this information.


“These are exciting times for us, and I’m overwhelmed by the enthusiastic responses by so many people who are excited about the potential of MHG’s groundbreaking technology,” says, Dr. Isao Noda, CSO of MHG and the “father” of Nodax PHA. The company showed two new videos: “Canola Dreams”, which showed MHG’s canola fields, now in full bloom and soon to be harvested. The locally grown plants serve as the feedstock for Nodax PHA at the company’s Bainbridge, Ga., facility; and, one that revealed MHG’s latest developments, including the fact that it is one of the few biotech companies in the world to achieve almost 100% eco-compatibility for biopolymers that can be made at a global-scale capacity, yet leave a significantly lower carbon footprint.


Meanwhile, a discussion with John Cullen, director of sales & marketing at PET supplier DAK revealed that the company forsees the production of 100% bio-based PET within the next five years on a smaller scale and totally within the next 10-15 years. The company currently offers grades with 30% biobased ethylene glycol content as well as grades with 20% post-consumer recycle content.


“Four years ago, we started our work on producing paraxylene from by-products of plant-based materials and have shown that its performance is equal to that of petrochemical-based paraxylene. We have had inquiries here at the show, for 100% bio-based PET from food packaging thermoformers primarily. We are preparing to make 100% bio-based PET, which will be 100% recyclable as is the case with current virgin PET.”  In terms of PCR recycle content, Cullen notes that 25-30% is the highest resin suppliers can go without adversely affecting processability.  


Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.

High-Flow, Low-Density TPEs For Automotive Debut

By: Lilli Manolis Sherman 27. March 2015

Aiming at a variety of automotive applications such as cup holders, air-guide systems, window seals is Kraiburg TPE, Duluth, Ga., which launched at NPE2015 new custom high-flow TPEs. They are said to allow for filling the mold cavity with even pressure, resulting in consistent gloss on the show surface of the part. Compared to other TPEs, TPVs and PVC, the Kraiburg TPE’s are said to typically increase the molder’s profitability because they yield reduced cycle time, reduced scrap, and are easier to process.


In addition, the high-flow TPEs are formulated to have less off gassing than competitive grades, which enables the process to run longer without having to have the mold cavity surface cleaned—a major cost advantage. In addition, these grades have very low specific gravity—generally 0.93 g/cc, while commonly used PVC has a typical density of 1.40 g/cc. Using these densities, in a typical design for rear quarter light window, these TPEs have been shown to offer a vehicle weight savings of 0.63 lbs.


Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.


"Revolutionary" Device Makes Purging Safer, Simpler

By: Lilli Manolis Sherman 26. March 2015

What is said to be a “revolutionary” device designed to capture molten plastic purges and create a safer environment for personnel and equipment in plastic processing operations is being introduced at NPE2015 by the Dyna-Purge div. of Shuman Plastics.


            Lava-Shield is the result of a two-year development project and hundreds of rigorous field trials. This protective purge guard is said to be easy to use with a variety of processing equipment including injection molding, extrusion, compounding, blow molding and film of virgin and recycled materials. Field studies found that most purges were shot onto cardboard, or even worse, grabbed by hand with a hot glove or rag. Such operations always result in waste because the purge gets contaminated and has to be disposed of—aside from the injury potential to personnel.


            Designed with a unique combination of specialty papers, Lava-Shield absorbs and then dissipates heat quickly and will not hold or transfer heat. When the purge cools, the special non-stick surface releases the purge, free from contamination, The purges can then be recycled or sold for values. This protective purge guard is reusable up to five times, made in the U.S. with up to 30% recycled content and, can be recycled along with other plant and office waste paper.


            Says company president Ken Shuman, “Plastics purges are extremely hot and our clients challenged us to create a device that could take the heat in capturing the purges while also protecting employees and equipment. They wanted something that is safe to use, easy to customize, with quick release properties to keep purges clean…and it should be reusable and recyclable. We responded and are proud to introduce Lava-Shield, designed with plastics processors in mind to help them purge smart.”


            Lava-Shield is available in 150 count “full-brick” quantities, or 75 count “half-brick” quantities. A free sample is available for qualified applications.


Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.

Specialty Olefinic TPE For High-End Cast Power Pre-Stretch Films

By: Lilli Manolis Sherman 25. March 2015

The newest grade in the Vistamaxx metallocene-catalyzed specialty olefinic TPEs from ExxonMobil Chemical is designed for high-performance cast power pre-stretch (PPS) films and makes its debut here at NPE.


            When used in the functional layer of cast PPS films, Vistamaxx 6000 is said to provide outstanding ultimate stretch, excellent holding force and tear propagation resistance even at thin gauge. This reportedly contributes to the secure transportation of goods, while helping to reduce waste and cost from damaged products.


            “Although the functional layer of stretch film comprises only about 10-15 percent of the total film composition, the intrinsic properties of the material used in that layer are key to performance. Vistamaxx 6000 has been designed to improve stretch film performance in response to market trends,” says global development manager Bill Ramsey. One such trend is the emergence of more mechanized and automated logistics chains, and the growing use of pallets to transport goods. Cost-efficient logistics operation can be made possible by combining the advantage of high-performance films and high-speed wrapping equipment,


            End-users are also moving to higher stretch or thinner gauge high-performance films, which can ultimately result in less film weight for the same pallet stability. “In the functional layer of cast PPS films, Vistamaxx combines high stretch with high holding force, exceptional toughness and easy processability for high output. It creates a very versatile film that adds value for both the extrusion and wrapping operation,” says Ramsey.


            European stretch film producer Ergis S.A., with a market presence in the PPS segment, has been running Vistamaxx 6000 in the functional layer of a high-performance PPS film. “We are impressed by the film’s excellent processability. Vistamaxx 6000 demonstrates flow right to the edges of the die resulting in excellent web stability and film roll appearance. Also, the film’s properties—ultimate stretch, stretch force and puncture—measured at 300% pre-stretch, were outstanding. The excellent tear propagation resistance provided by Vistamaxx 6000 clearly enables smooth, high-speed wrapping operations,” says Ergis’ managing director Grzegorz Kedzierski.


Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.



Transparent Nylons That Can Also Be Used As Additives

By: Lilli Manolis Sherman 25. March 2015

A line of highly versatile semi-aromatic nylons with a unique combination of performance, cost-effectiveness and recycled content were launched by Invista, Wilmington, Del. Moreover, these Novadyn DI/DI transparent polymers can also be used as differentiated blend additives to improve traditional nylon performance. They targeted to bring value to users who require parts that are both transparent and chemically resistant.


            “We developed Novadyn DI/DI nylon for transparent applications where polycarbonate struggles with chemical resistance or where more costly transparent polymers may be over-specified. The nylon world in not ‘dry as molded’. In humid environments, Novadyn nylons can boost traditional nylon properties, enable thinner parts, and enhance light-weighting initiatives,” says Allen Reihman, director of new business development for Invista.


            As a blend additive for traditional nylons, Novadyn DI/DI nylon significantly improves conditioned mechanical properties for nylons 6/6 and 6, including up to 43% improvement reported in conditioned flexural strength and stiffness.


Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.


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