More Than Meets the Eye: The World of Packaging Science

1. More Than Meets the Eye: The World of Packaging Science Maura Fierro October 23, 2012

2. Overview • Personal Background • MeadWestvaco and Center for Packaging Innovation (CPI) • Case Study - Skin Care Formulations Dispenser • Q&A

3. Background A little bit about me…

4. MWV is a global leader in packaging and packaging solutions $6 billion in revenue 20,000 employees worldwide Presence in 30 countries Growth in emerging markets +40% sales outside North America 75% of revenue from packaging businesses

5. We are the look and feel of some of the world’s most-admired products

6. We serve the world’s largest consumer brands across key industries Healthcare Consumer Electronics Food Beauty &Personal Care Home & Garden Tobacco Beverage Food Service

7. Beverage Beverage Multipack cartons and containers for beverage and food items 7

8. Food High strength paperboard High quality graphic paperboard 8

9. Food Service Food Service Sustainable and convenient solutions 9

10. Healthcare Healthcare Adherence-enhancing Solutions Primary dispensing solutions 10

11. Beauty & Personal Care Beauty and Personal Care Pump and trigger sprayers with customized aesthetics 11

12. Home & Garden Home & Garden Pump and trigger sprayers Hose end sprayers Aerosol Actuators 12

13. Tobacco Tobacco Paperboard packs and cartons Specialty Products 13

14. Global Locations Europe Asia Pacific Americas

15. Need higher quality version of this graphic Center for Packaging Innovation • Centralized hub for collaborative innovation with customers and MWV teams • Vision • Make innovation a differentiator for customers • Be acatalyst for transformative growth 15

16. MWV Innovation Capability Research & Development Packaging Materials • Paper Science • Coatings • Polymer Science • Analytical Science Packaging Development • Packaging Processes • Package Development • Pilot Plant / Diagnostics Open Innovation Innovation Process Management

17. Case Study: Chemical Compatibility of Skin Care Formation Dispenser

18. One component replaces five in conventional pump technology Pearl – Features • Non Locking • Bellow technology suitable for high viscosity fluids • Reduction of part count • Metal free fluid pathway • Maximum bottle evacuation • Total Effects, Olay’s top-selling line of anti-aging moisturizers, is expected to save 800,000 pounds of plastic a year – equivalent to the weight of a Boeing 747.

19. Pearl – Anatomy Overcap (PP) Nozzle (PP) Base (PP) Bellow Base (PP) Piston (HDPE) Container (PP)

21. Chemical Compatibility of Elastomer Valve • Background • Elastomer valve in all plastic dispenser is in contact with skin care products and undergoes stress in use. • Over time some ingredients migrate into the plastic. • This can cause cracking, swelling, flaking, dissolution of the elastomer… a phenomenon known as: • Environmental Stress Cracking • Ultimately this can cause pump failure! • Objective • Resolve issues with elastomer valve failure due to compatibility with formulation to allow MWV to expand current Pearl opportunities to non-compatible products

22. Chemical Compatibility of Elastomer Valve • Approaches • Theoretical • Solubility modeling to predict “bad actors” and develop hypotheses on chemically resistant materials • Experimental • Experimental results are used to inform solubility model  improved (or validated) predictions • Materials selection and chemistry for product development • Mechanical properties before and after exposure to formulations • Immersion testing to quantify swelling and mass uptake • Prototype molding with candidate materials • Cycle testing – measure force to actuate, dispensed volumes, etc.

23. Skin Care Formulations • Skin care formulations are composed of a chemically diverse range of ingredients: • Hydrophilic components • Hydrophobic components • Surfactants • UV absorbers • Fragrances • Preservatives • …Etc.

24. Solubility Modeling • Predict product formulation-polymer solubility with theory. • Polymers resistant to swelling considered good candidates for elastomer valve. • Solubility relevant across number of packaging platforms (chemical migration, environmental stress cracking, etc.) • How the Model Works • Favorability of mixing predicted by thermodynamic fundamentals (polarity, Van der Waals, hydrogen bonding) • “Like dissolves like”. • If a material is within the Hansen solubility sphere of a given polymer, swelling / environmental stress cracking to be expected

25. Experimental Approach • Use chemistry fundamentals to guide in selection of polymers that: • Provide required mechanical properties • Process on polymer processing equipment (injection molding) • Resist Environmental Stress Cracking (ESC) • Meet cost constraint criteria • Material properties • Mass uptake, swelling and solubility provide empirical connections to theory predictions • Stress-strain relationships measured through Dynamic Mechanical Analysis • Material properties connected to pump performance through engineering testing

26. Conclusions • Science and engineering are applied in the development of packaging materials to provide desired performance. • Examples include • Barrier (O2, H2O, aroma, light, liquid, etc.) • Chemical resistance • Sustainability (biopolymers, recyclable polymers, renewable resources, etc.) • Both package contents and packaging materials must be considered. • Theory and experiment can be applied together in Research and Development to solve problems. • Fundamentals are a must! • Working across teams is critical to success in business setting. • Communication skills and adaptability, in addition to sound technical foundation, are important!

27. Thank you! Questions?

28. Pearl – Operation Bellow Filling Top fill Suction/Charging Each up stroke decompresses the bellow creating a depression that pulls product into dispenser from the container [Priming/]Dispensing Each down stroke compresses fluid (air/liquid during priming) in the bellow that becomes displaced out by the head spout Shipping Hood protects head from being actuated. No liquid/air path open