Across the show, sustainability ruled in new materials technology, from polyolefins and engineering resins to biobased materials.

In this article we explore the use of amorphous polyhydroxyalkanoate (aPHA), which is commercially produced by CJ Biomaterials (a division of CJ CheilJedang), to improve the mechanical properties of brittle polymers such as PLA in injection molding applications. While modification of PLA is the focus here, a similar approach may be employed for a variety of other polymers used in molding applications.

In a time where sustainability is no longer just a buzzword, the food and beverage packaging industry is required to be at the forefront of this innovation. By adopting circular packaging processes and solutions, producers can meet regulatory requirements while also satisfying consumer demand and enhancing brand reputation. Join Husky to learn more about the broader implications of the circular economy — as well as how leading brands are leveraging this opportunity to reduce costs, increase design flexibility and boost product differentiation. Agenda: The cost and operational benefits of embracing circularity Key materials in circular packaging — including rPET and emerging bioplastics How to design a circular food and beverage package Strategies for selecting sustainable closures to future-proof packaging solutions Optimization and streamlining of production processes for enhanced efficiency How Husky Technologies can enable your sustainable success

The optimal hold time is the time that it takes the gate to seal off, at which point the weight of the part does not increase with further holding. For PLA/aPHA blends, hold times of 3–10 sec are common; longer hold times can be used for more complex parts. Sink marks and voids in the part indicate insufficient hold time.

aPHA is a type of biopolymer that belongs to the family of PHAs, which are biodegradable aliphatic polyesters produced by various microorganisms as a means of energy storage. Unlike other types of PHAs, aPHA is a non-crystalline or amorphous polymer, meaning that it lacks the highly ordered structure found in semi-crystalline polymers. In 2022, CJ Biomaterials commercialized Phact 1000P aPHA, which has several unique properties that make it a promising material for various applications.

After successfully introducing a combined conference for moldmakers and injection molders in 2022, Plastics Technology and MoldMaking Technology are once again joining forces for a tooling/molding two-for-one.

Join KraussMaffei for an insightful webinar designed for industry professionals, engineers and anyone interested in the manufacturing processes of PVC pipes. This session will provide a comprehensive understanding of the technology behind the production of high-quality PVC pipes: from raw material preparation to final product testing. Agenda: Introduction to PVC extrusion: overview of the basic principles of PVC pipe extrusion — including the process of melting and shaping PVC resin into pipe forms Equipment and machinery: detailed explanation of the key equipment involved — such as extruders, dies and cooling systems — and their roles in the extrusion process Process parameters: insight into the critical process parameters like temperature, pressure and cooling rates that influence the quality and consistency of the final PVC pipes Energy efficiency: examination of ways to save material and energy use when extruding PVC pipe products

The deal expands the company’s footprint in the life sciences sector and its geographical reach in the eastern and western parts of North America.

▪  Mold temperature: This directly affects the cycle times. At a mold temperature of 30℃, the cycle time for CA1180P PLA/aPHA blend is 20–35 sec. On the other hand, more than 100 sec of cycle time is required for high-temperature molding (110℃) typically used for crystallizing the PLA in-mold.

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"Pyramid is a terrific company and represents a significant step in SyBridge's journey to build a leading franchise in life sciences manufacturing solutions," said Tony Nardone, CEO of SyBridge. "With this acquisition, SyBridge’s Life Sciences Business Unit now has a strong presence on both the eastern and western parts of North America to better serve our customers. Going forward, our strategy will be to continue to grow our life sciences customer base through organic growth and selective acquisitions to expand SyBridge’s capabilities and geographies."

Ultradent's entry of its Umbrella cheek retractor took home the awards for Technical Sophistication and Achievement in Economics and Efficiency at PTXPO.

The acquisition expands SyBridge's capabilities to offer complex precision tooling products for the life sciences and other target industries. As a part of a larger organization, Pyramid will leverage SyBridge’s design, engineering, supply chain, and production capabilities to better serve and grow with its customers.

Plastics Technology covers technical and business Information for Plastics Processors in Injection Molding, Extrusion, Blow Molding, Plastic Additives, Compounding, Plastic Materials, and Resin Pricing. About Us

For example, its low glass-transition temperature (Tg) around -17℃ leads to high stability and elasticity at low temperatures, compared with semi-crystalline PHAs in the market. The high biodegradability of aPHA is also one of its most remarkable characteristics. It is certified to be biodegradable in various environments, including soil and marine, by microorganisms that can use it as a carbon source.

While prices moved up for three of the five commodity resins, there was potential for a flat trajectory for the rest of the third quarter.

Biopolymers such as polyhydroxyalkanoate (PHA) and polylactic acid (PLA) are versatile, compostable and biocompatible materials derived from natural resources such as corn, sugar beets and potato starch, and are excellent candidates for producing commercially compostable packaging materials. PLA adoption has grown significantly in recent years, but some drawbacks — including low elongation at break and brittleness in comparison with traditional petroleum-based polymers — have limited the range of applications in which it is employed.

•  Improved flexibility and potential for living hinges in molded parts. Figure 3 shows the influence of aPHA addition on the modulus of PLA.

Sustainability continues to dominate new additives technology, but upping performance is also evident. Most of the new additives have been targeted to commodity resins and particularly polyolefins.

Join Engel in exploring the future of battery molding technology. Discover advancements in thermoplastic composites for battery housings, innovative automation solutions and the latest in large-tonnage equipment designed for e-mobility — all with a focus on cost-efficient solutions. Agenda: Learn about cutting-edge thermoplastic composites for durable, sustainable and cost-efficient battery housings Explore advanced automation concepts for efficient and scalable production See the latest large-tonnage equipment and technology innovations for e-mobility solutions

As a result, it can be regarded as an attractive alternative to petroleum-based plastics. (It should be noted that the value of aPHA is to work with PLA or other biopolymers that are brittle and rigid, where it can help improve their performance and quicken their rate of composting compared with PLA alone.)

This Knowledge Center provides an overview of the considerations needed to understand the purchase, operation, and maintenance of a process cooling system.

▪  Holding pressures and time:  The second-stage injection pressure (i.e., holding pressure) should be just enough to fill the last 1% to 5% of the part and maintain a full part as it cools and shrinks in the cavity. For PLA/aPHA blends, holding pressure is typically 15% to 30% of the first-stage peak injection pressure and should start low and increase gradually until the part fills but does not flash.

Successfully starting or restarting an injection molding machine is less about ticking boxes on a rote checklist and more about individually assessing each processing scenario and its unique variables.

To date, CJ Biomaterials has introduced two compounds for injection molding, CA1180P and CA1170P, which are based on PLA and aPHA along with a small amount of mineral filler. Their cost and performance are differentiated by the content of aPHA and mineral filler. The spider chart  (Fig. 4) demonstrates the performance of CA1180P relative to a standard PLA injection molding grade. It is evident that CA1180P, which is 100% biobased and compostable, has significantly higher impact strength and elongation relative to PLA alone, while only a modest decrease in strength is evident.

Join this webinar to explore the transformative benefits of retrofitting your existing injection molding machines (IMMs). Engel will guide you through upgrading your equipment to enhance monitoring, control and adaptability — all while integrating digital technologies. You'll learn about the latest trends in IMM retrofitting (including Euromap interfaces and plasticizing retrofits) and discover how to future-proof your machines for a competitive edge. With insights from industry experts, it'll walk you through the decision-making process, ensuring you make informed choices that drive your business forward. Agenda: Maximize the value of your current IMMs through strategic retrofitting Learn how to integrate digital technologies to enhance monitoring and control Explore the benefits of Euromap interfaces and plasticizing retrofits Understand how retrofitting can help meet new product demands and improve adaptability Discover how Engel can support your retrofitting needs, from free consultations to execution

Take a deep dive into all of the various aspects of part quoting to ensure you’ve got all the bases—as in costs—covered before preparing your customer’s quote for services.

Addition of aPHA to PLA improves impact strength and ductility at room temperature. (The two different curves represent two different lots of aPHA.)

The two companies have agreed to collaborate on creating advanced products based on industry-leading Ingeo PLA and Phact PHA technologies to meet growing demand for sustainable materials across a broad  array of markets

Multiple speakers at Molding 2023 will address the ways simulation can impact material substitution decisions, process profitability and simplification of mold design.

Based on those performance features highlighted, it’s clear that blends of PLA and aPHA are useful biobased (100% bio-carbon) and compostable alternates to plastics such as ABS, PP, PS, HIPS and PET in many molding applications. These blends are also certified for food contact by the U.S. FDA.

To develop the ultimate physical and appearance properties of PLA/aPHA blends, the material should be processed at the maximum allowable melt temperature without excessive thermal degradation. It should be injected at slow speed, packed at the minimum pressure required to fill out the mold details, and packed long enough until the gate freezes.

Exhibitors and presenters at the plastics show emphasized 3D printing as a complement and aid to more traditional production processes.

Mixed in among thought leaders from leading suppliers to injection molders and mold makers at the 2023 Molding and MoldMaking conferences will be molders and toolmakers themselves.

In this collection, which is part one of a series representing some of John’s finest work, we present you with five articles that we think you will refer to time and again as you look to solve problems, cut cycle times and improve the quality of the parts you mold.

In this collection of content, we provide expert advice on welding from some of the leading authorities in the field, with tips on such matters as controls, as well as insights on how to solve common problems in welding.

Global industrial technology company SyBridge Technologies announced today that it has completed the acquisition of Pyramid Mold and Tool, further expanding its footprint in the life sciences end markets. New York–based private equity firm Crestview Partners said in the news release that it established SyBridge in 2019 and committed $200 million of equity to create a market leading value-added manufacturing solutions provider spanning across end-markets, geographies, and advanced technologies. Pyramid is SyBridge’s fifth acquisition in the last 10 months.

Gifted with extraordinary technical know how and an authoritative yet plain English writing style, in this collection of articles Fattori offers his insights on a variety of molding-related topics that are bound to make your days on the production floor go a little bit better.

ABOUT THE AUTHORS: Max Senechal is the chief commercial officer at CJ Biomaterials. He has more than 25 years’ experience in the chemical and material industries, with the last 13 years spent on the development of biomaterials at Metabolix, Ginkgo Bioworks, and CJ Biomaterials. Contact: (339) 999-2693; max.senechal@cj.net; cjbio.net.

•  Considerable impact toughening of PLA.  As shown in Fig. 2,  aPHA can enable PLA to transition from a brittle polymer to a ductile polymer.

▪  Cooling time:  This should be long enough that the part ejectors do not penetrate the part. The part should not stick in the cavity and eject freely. The cooling requirements of a part are strongly dependent on its wall thickness. It is recommended to start long — e.g., 15–30 sec — to  ensure the part can be ejected, and then gradually reduce the cooling time when the cycle is running. At a minimum, the cooling time will be equal to the screw recovery time.

Despite price increase nominations going into second quarter, it appeared there was potential for generally flat pricing with the exception of a major downward correction for PP.

While the major correction in PP prices was finally underway, generally stable pricing was anticipated for the other four commodity resins.

technotrans says climate protection, energy efficiency and customization will be key discussion topics at PTXPO as it displays its protemp flow 6 ultrasonic eco and the teco cs 90t 9.1 TCUs.

Additive technology creates air pockets in film during orientation, cutting down on the amount of resin needed while boosting opacity, mechanical properties and recyclability.

CA1180P can be processed on conventional electric and hydraulic reciprocating-screw injection molding machines. General process conditions are similar to those of PLA. Hydrolysis, thermal stability and warpage/shrinkage are among the factors that must be accounted for in molding both PLA and compounds of PLA with aPHA. Because aliphatic polyesters are susceptible to hydrolysis at typical processing temperature, the products must be dried prior to molding.

Located in Rancho Cucamonga, CA, Pyramid manufactures precision multi-cavity plastic injection molding tools with an emphasis on the life sciences industry. Founded in 1995, Pyramid specializes in tight-tolerance, high-cavitation molds and complex multi-shot, stack, liquid silicone rubber, and proof-of-concept prototype tools.

Learn about sustainable scrap reprocessing—this resource offers a deep dive into everything from granulator types and options, to service tips, videos and technical articles.

While the melting process does not provide perfect mixing, this study shows that mixing is indeed initiated during melting.

Introduced by Zeiger and Spark Industries at the PTXPO, the nozzle is designed for maximum heat transfer and uniformity with a continuous taper for self cleaning.

August 29-30 in Minneapolis all things injection molding and moldmaking will be happening at the Hyatt Regency — check out who’s speaking on what topics today.

Discover how artifical intelligence is revolutionizing plastics processing. Hear from industry experts on the future impact of AI on your operations and envision a fully interconnected plant.

While prices moved up for three of the five commodity resins, there was potential for a flat trajectory for the rest of the third quarter.

A sit-down with bioplastic producer Danimer Scientific showed me there are more possible answers to that question than I had previously thought.

Raj Krishnaswamy is v.p. of polymers R&D at CJ Biomaterials. He had over 20 years of polymers R&D experience at Chevron Phillips Chemical, Metabolix and Braskem prior to his current stint at CJ. Raj is a co-inventor on 50+ patents and a co-author on 40+ publications. He is a Fellow of the Society of Plastics Engineering (SPE), has been recognized with the Research/Technology lifetime achievement award by the SPE, and is an alumnus of the NAE Frontiers of Engineering.  Contact: (339) 999-2693; raj@krish.cj.net; cjbio.net.

Mike Sepe has authored more than 25 ANTEC papers and more than 250 articles illustrating the importance of this interdisciplanary approach. In this collection, we present some of his best work during the years he has been contributing for Plastics Technology Magazine.

Second quarter started with price hikes in PE and the four volume engineering resins, but relatively stable pricing was largely expected by the quarter’s end.

Adding aPHA to PLA can boost a range of mechanical properties and expedite composting. Here are the details as well as processing guidelines for injection molding the blends.

Because aliphatic polyesters are susceptible to hydrolysis at typical processing temperature, the products must be dried prior to molding.

Say “manufacturing automation” and thoughts immediately go to the shop floor and specialized production equipment, robotics and material handling systems. But there is another realm of possible automation — the front office.

The Plastics Industry Association (PLASTICS) has released final figures for NPE2024: The Plastics Show (May 6-10; Orlando) that officially make it the largest ever NPE in several key metrics.

FDA listing clears the way for CJ Biomaterials’ amorphous polyhydroxyalkanoate to be used in the manufacture of food contact materials sold in the U.S.

These polymers are also prone to chain scission at higher than nominal processing temperatures that can arise from excessive shear. These attributes call for processing temperatures below ~200°C. The injection speed and screw rpm must be moderate. High-shear regions such as flow through the gate must be appropriately addressed through gate design.

Core Technology Molding turned to Mold-Masters E-Multi auxiliary injection unit to help it win a job and dramatically change its process.

Plastics Technology’s Tech Days is back! Every Tuesday in October, a series of five online presentations will be given by industry supplier around the following topics:  Injection Molding — New Technologies, Efficiencies Film Extrusion — New Technologies, Efficiencies Upstream/Downstream Operations Injection Molding — Sustainability Extrusion — Compounding Coming out of NPE2024, PT identified a variety of topics, technologies and trends that are driving and shaping the evolution of plastic products manufacturing — from recycling/recyclability and energy optimization to AI-based process control and automation implementation. PT Tech Days is designed to provide a robust, curated, accessible platform through which plastics professionals can explore these trends, have direct access to subject-matter experts and develop strategies for applying solutions in their operations.

Formnext Chicago is an industrial additive manufacturing expo taking place April 8-10, 2025 at McCormick Place in Chicago, Illinois. Formnext Chicago is the second in a series of Formnext events in the U.S. being produced by Mesago Messe Frankfurt, AMT – The Association For Manufacturing Technology, and Gardner Business Media (our publisher).

In this three-part collection, veteran molder and moldmaker Jim Fattori brings to bear his 40+ years of on-the-job experience and provides molders his “from the trenches” perspective on on the why, where and how of venting injection molds. Take the trial-and-error out of the molding venting process.

In this collection of articles, two of the industry’s foremost authorities on screw design — Jim Frankand and Mark Spalding — offer their sage advice on screw design...what works, what doesn’t, and what to look for when things start going wrong.

Join Wittmann for an engaging webinar on the transformative impact of manufacturing execution systems (MES) in the plastic injection molding industry. Discover how MES enhances production efficiency, quality control and real-time monitoring while also reducing downtime. It will explore the integration of MES with existing systems, emphasizing compliance and traceability for automotive and medical sectors. Learn about the latest advancements in IoT and AI technologies and how they drive innovation and continuous improvement in MES. Agenda: Overview of MES benefits What is MES? Definition, role and brief history Historical perspective and evolution Longevity and analytics Connectivity: importance, standards and integration Advantages of MES: efficiency, real-time data, traceability and cost savings Emerging technologies: IoT and AI in MES

Processors with sustainability goals or mandates have a number of ways to reach their goals. Biopolymers are among them.

When, how, what and why to automate — leading robotics suppliers and forward-thinking moldmakers will share their insights on automating manufacturing at collocated event.

Adding aPHA to PLA improves flexibility and potential for living hinges. (The two different curves represent two different lots of aPHA.) CA1180P,

Said to be the first of its kind, this AI assistant will enhance access to ICIS’ intelligence and insights for the energy and chemical markets.

This month’s resin pricing report includes PT’s quarterly check-in on select engineering resins, including nylon 6 and 66.

Resin drying is a crucial, but often-misunderstood area. This collection includes details on why and what you need to dry, how to specify a dryer, and best practices.

▪  Warping and shrinkage: PLA/aPHA blends have a relatively high coefficient of thermal expansion, which can cause warping and shrinkage of the parts during the cooling phase of injection molding. To minimize this, it is critical to use proper cooling methods, such as uniform cooling across the mold surface and adequate cooling time. And a slower than normal injection speed and additional holding pressure can help fill the part without much shrinkage and flash.

Across all process types, sustainability was a big theme at NPE2024. But there was plenty to see in automation and artificial intelligence as well.

The aim of this presentation is to guide you through the factors and the numbers that will help you determine if a robot is a smart investment for your application. Agenda:  Why are you considering automation? What problems are you trying to solve? How and why automation can help Crunch the numbers and determine the ROI

Eunhye (Grace) Lee is the group manager of polymer application R&D at CJ Biomaterials. She has a Ph.D in polymer engineering from Osaka University and over 10 years’ experience in research on biopolymers. In particular, she has led application studies on biopolymers such as PLA, PHA, and PGA. She recently published several papers on the behavior of polymer properties and the use of biopolymers. Eunhye is currently conducting research on improving the physical properties of PHA biopolymers and compounds including tuning rates of biodegradability. Contact: (339) 999-2693; grace.lee@cj.net; cjbio.net.

•  Faster PLA industrial composting. As shown in Fig. 1, blending 10% aPHA with PLA permits composting times about 30 days faster.

Mold maintenance is critical, and with this collection of content we’ve bundled some of the very best advice we’ve published on repairing, maintaining, evaluating and even hanging molds on injection molding machines.