When PolyCase Ammunition was getting ready to produce its new line of high performance ammunition, the project team knew they needed a material that would be easily enable them to produce their patent-pending, injection molded projectile designs that function as well or better than conventional lead-core projectiles.  The designs were unique. The Avient team used their extensive knowledge and experience working with high-density polymers to develop a specialized Gravi-Tech™ high-density polymer composite that met PolyCase’s needs and fit the profile of their proprietary injection molding process.

When PolyCase Ammunition was getting ready to produce its new line of high performance ammunition, the project team knew they needed a material that would be easily enable them to produce their patent-pending, injection molded projectile designs that function as well or better than conventional lead-core projectiles.  The designs were unique. The Avient team used their extensive knowledge and experience working with high-density polymers to develop a specialized Gravi-Tech™ high-density polymer composite that met PolyCase’s needs and fit the profile of their proprietary injection molding process.

HVAC doors are typically produced by injection molding two parts that provide structural strength and air sealing performance. However, in this case, designers wanted to reduce the thickness of the part wall significantly to achieve a relative weight saving of 90 percent. Designers were able to achieve a relative weight saving of 90 percent without compromising performance.

HVAC doors are typically produced by injection molding two parts that provide structural strength and air sealing performance. However, in this case, designers wanted to reduce the thickness of the part wall significantly to achieve a relative weight saving of 90 percent. Designers were able to achieve a relative weight saving of 90 percent without compromising performance.

Processing & Design Guides Processing & Design Guides Injection molding parameters and troubleshooting recommendations for Gravi-Tech™

Dynaflex™ thermoplastic elastomers (TPE) are designed for injection molding and extrusion applications across a wide variety of industries. GLS™ TPEs - Injection Molding Guide Guide to overmolding material selection, part and mold design, material handling and preparation, TPE injection molding, processing, maximizing adhesion and troubleshooting for GLS™ TPEs

Injection Molded Composite Baseball Bat Complēt™ long carbon fiber reinforced composites allows deployment of injection molded material solution for design flexibility and customization Injection molded Complēt™ long carbon fiber reinforced nylon composite delivered high stiffness and low weight while simplifying manufacturing

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Avient Corporation 3 Simplified Drop Test • 65g steel ball • Dropped from 305mm • Onto 3.175mm thickness flat samples Materials Tested • Standard TPE 30 Shore A • TPU alloy 60 Shore A • Damping TPE 32 Shore A VDT reduces bounce Avient Corporation 4 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 Image courtesy of Airobag TV https://www.youtube.com/c/AirobagTV/videos Simulation of Impact A weight dropped onto protective element in contact with rigid substrate https://www.youtube.com/c/AirobagTV/videos Avient Corporation 5 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 REFINING THE DESIGN D E S I G N A N D M A T E R I A L C O M B I N A T I O N Avient Corporation 6 • A number of different shapes and designs are created and simulated to determine which one works best • Refining to meet EN standard • VDT TPEs can help reach compliance with EN1621-1 level 2 and EN1621-2 level 1 • Optimum protection can be achieved by combining industrial design and engineering Avient Corporation 7 VALIDATION P R O T O T Y P I N G W I T H 3 D P R I N T I N G 3D Printing Validation -15% -10% -5% 0% 5% 10% Density Tensile Strength // Tear resistance // Rebound resilience 2mm 3D Printed VDT vs Injection Molded VDT can be 3D printed for concept evaluation early in the design process SUMMARY Avient Corporation 8 • Enabled a new, compact design with a customized VDT TPE formulation • Improved user comfort and functionality • Fulfilled EN standards • Reduced number of prototyping tools required • Reduced time spent in product development by 40 percent, enabling faster commercialization of product

Processing & Design Guides Injection molding parameters and guidelines for Nymax BIO Bio-based Polyamide Solutions. Processing & Design Guides