The boss should extend into the nominal wall of the part, to avoid a thick region and possible sink Figure 4 - Drafting Guidelines for Nominal Wall Thickness Cross section showing draft Figure 5 - Rib design guidelines 1/4˚—–1˚ 2.5W 3W Min. .01" R Min. or .25W .75W for a low shrink material .50W for a high shrink material Figure 6 - Wall thickness changes due to rib placement 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Rib-height (mm) M ax D is p la ce m en t M ag n it d e (m m ) FIGURE 4 - Drafing guidelines for nominal wall thickness FIGURE 5 - Rib design guidelines FIGURE 7 - Wall thickness changes due to rib placement FIGURE 6 - Rib height vs. stiffness 10 Gravi-Tech FIGURE 8 - Side Wall Boss Design Guidelines Sink Not Recommended Preferred Design A = Diameter = A = Primary Wall = A = 2A FIGURE 9 - Guidelines Design Guidelines 4W 2W .75W For a Low Shrink Material .50W For a High Shrink Material FIGURE 9 - Side wall boss design guidelines FIGURE 10 - Gusset design guidelines FIGURE 11 - Structural hole area. SERIES PARALLEL Pressure Drop High Low Flow Rates Consistent Variable Temperature Rise Potential Large Small Horsepower Requirements Higher Lower Reynolds Numbers Higher Lower FIGURE 37 - Parallel vs series cooling line layout FIGURE 36 - Parallel cooling line layout Plastic Molding Draft Angle Mold Core Ffriction Fnormal Feject FIGURE 38 - Friction force Can use larger pin at intersections FIGURE 39 - Ejection pin layout Design Guide 19 FIGURE 39 - Sripper Plate Core Block Core Insert Stipper Plate Ejector Pin Bolts Ejector Pin FIGURE 40 - Ejector sleeve Land = 3*D 0.001 in 0.02 mm 0.020 in 0.5 mm D FIGURE 42 - Ejector pin FIGURE 41 - Stripper plate Stripper Plate This type of ejector is often used with round parts to provide a constant ejection force on the entire part. Design Guide 33 Mold damages Loss of clamp force Barrel malfunction Melt temperature too Transfer position too low Excessive pack pressure Excessive back pressure Repair mold damage Clean parting line Reduce pinch-off land Increase clamp force Dry material Reduce melt temperature Reduce mold Reduce hold pressure Increase transfer Flash • Excess material commonly found at parting lines or mold features Root cause: Too much plastic or mold damage. 34 Gravi-Tech Design of gate too small or in wrong location Machine not providing Heater overriding Viscosity too low Injection velocity too high Melt temperature Remove sharp corners Change gate type Move gate to a position where the melt stream will impinge upon a mold feature Dry material Reduce injection velocity Increase melt Jetting Root cause: Injection speed is too high for the viscosity of the material Design Guide 35 Finish too rough Screw configuration Overworking material Non-compatible additive Melt temperature too Remove sharp corners Use smaller screw/barrel Check melt uniformity Check L/D ratio Check additive compatibility Reduce screw speed Reduce residence time Plate-Out • Build-up or deposit on mold surface Root cause: One component of the material is not totally compatible. 36 Gravi-Tech Shut-off partially turned Screw problems Barrel heater problems Material too dry Under-packing Not enough pack pressure Transfer position too high Make sure gate is not blocked Insure runner shut-off is not turned Check venting Change gating location Add flow leader Insure cushion position Make sure screw is trans- ferring at a correct Change screw/barrel Make sure material was dried at proper settings Increase melt Increase mold Decrease transfer Short Shot • Not enough material is being injected into the mold to fill out all of the cavities Root cause: Not enough plastic is getting into the cavity.

Stephen D. S/ STEPHEN D. s/ Stephen D.

D&I at Avient is a shared value and position, but it’s crucial for me to lead by example.”   We have enabled our innovation strategy through continued investment in R&D, Sales and Marketing. R&D Spend U .S .

NEWLIN Stephen D. Goff /S/ GORDON D. HARNETT Gordon D.

SOURCE: https://www.wri.org/insights/5-ways-unlock-value-circular-economy https://www.wri.org/insights/5-ways-unlock-value-circular-economy Taking the Next Steps Take the Circular Economy to the Next Level Because sustainable material solutions and technology are evolving at the speed of life, it takes fresh thinking, agile R & D, and imaginative use of next-generation materials to bring life-changing products to market safely and quickly.

STAGE SOLUTION CAPABILITIES Polymer Recycling ColorMatrix™ rePrize™ - Increases intrinsic viscosity to enhance use of recycled PET - Reduces yellowing and decontamination Materials Selection ColorMatrix™ Joule™ RHB - Reduces the energy required and costs - Ensures minimal yellowing and light-weighting Preform Molding ColorMatrix™ AAzure™ - Reduces yellowing and acetaldehyde levels for improved bottled strength Preform Molding ColorWorks™ - Provides a range of possible colors for end products based on the color of the rPET available for use Preform Molding Rejoin™ PCR Masterbatch - Combines pigments and functional additives with a 100% PCR carrier for polyolefins - Enables packaging that is 100% PCR Bottle Blowing & Filling ColorMatrix™ Optica™ - Excellent acid & thermal stability to reduce yellowing and create a haze-free container Bottle Blowing & Filling ColorMatrix™ Smartheat RHC™ Process Aid - Optimizes weight distribution to increase bottle strength and quality - Reduces energy required and costs Sales, Distribution, ColorMatrix™ Amosorb™ - Scavenges oxygen to extend the shelf life and preserve the freshness of food or beverages within container Sales, Distribution, ColorMatrix™ Ultimate™ UV - Blocks ultraviolet light transmission to protect the container and its contents - Enables light-weighting Sales, Distribution, ColorMatrix™ Lactra™ - High-performance light blocking that extends the shelf life of light-sensitive dairy products Taking the Next Steps Move Your Sustainability to the Next Level Because sustainable material solutions and technology are evolving at the speed of life, it takes fresh thinking, agile R & D, and imaginative use of next-generation materials to bring life-changing products to market safely and quickly.

Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Committees: 2*, 4 Patricia D.

All other colors like deep saturated tones, dull shades and mid-tone saturated colors will be printed directly on the “gray plate”.

Typical Spiral Flow Lengths for GLS TPEs* Flow length, in Series 3 in/sec 5 in/sec Dynaflex D 13–15 18–20 Dynaflex G 12–22 18–30 Versaflex™ 9–16 13–26 *Spiral flow tests performed using 0.0625 in thickness and 0.375 in width channel at 400°F. D-2 Very hard, high wear characteristics, high vanadium content, somewhat brittle. The gate depth (D) should be 15%–30% of the wall thickness at the gate entrance.

Autoinjector Pen - Avient Application Study.mm (1) AUTO-INJECTOR APPLICATION STUDY M A T E R I A L T E C H N O L O G I E S + S E R V I C E S F O R N E X T G E N E R A T I O N D E S I G N S Avient Corporation 1 Avient Corporation 2 Innovating Design Medical innovations and plastics have gone hand-in-hand to make healthcare safer, cleaner, and more accessible for all.