Packaging Options With COC/PE Blends

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Learn about some of the ways TOPAS COC can improve the performance of ordinary polyolefins and enable you to develop higher value offerings.

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Packaging Options With COC/PE Blends

  1. 1. Cyclic Olefin Copolymer:A High Performance Modifier for Conventional Polyolefins SPE Polyolefins 2007 Conference February 25 – 28, 2007; updated 2013 www.topas.com
  2. 2. TOPAS® Cyclic Olefin Copolymer (COC)A New Addition to the Ethylene Copolymer Family  Polyolefin Resin  Amorphous  Clear and Colorless  High Purity  High Moisture Barrier  Good Chemical Resistance  Easy to Process  Easy to Reprocess www.topas.com
  3. 3. TOPAS® COC - Film & Packaging Examples Pouches Forming Webs Optical Film Blister Packaging COC Soft Shrink Film Shrink Sleeves TOPAS® COC enhances a broad range of film and packaging applications www.topas.com
  4. 4. TOPAS® COC - Enhancement in Value Customized Performance  Barrier  WVTR = extended shelf life  Special barrier (e.g. acetic acid, alcohol, aroma, flavor, acids, bases, peroxide; moderate gas barrier)  Mechanical Properties  Added stiffness = downgauging of softer polymers  Improved thermoforming  Higher temperature resistance  Controlled tear  Superior twist retention  Curl reduction  Seal Properties  Improved seal strength, hot tack and temperature window www.topas.com
  5. 5. TOPAS® COC - Barrier Properties 23C/50% 10 000Oxygen Barrier [cm3·mil/100 in2·atm·d] 1 000 LDPE EVA12 PCL HDPE PC BOPP Cellulose Acetate 100 PP PS PVC TOPAS® COC PVC hard plasticized 10 PET PA 6 PCTFE Starch PEN 1 PAN MXD PVdC Cellulose 0.1 EVOH LCP Sources: Permeability Properties of Plastics and Elastomers, Massey, 2nd Edition; various datasheets; internal data 0.01 0.01 0.1 1 10 100 1 000 10 000 Water Vapor Barrier [g·mil/100 in2·atm·d] 38C/90% TOPAS® COC can extend the shelf life of products due to its very high moisture barrier www.topas.com
  6. 6. Barrier Properties in PE/COC Blends 7 6 Plastomer Water Permeation [g 100µm/m² 24hr] 5 38°C & 90% RH 4 3 LLDPE 2 HDPE 1 0 0 20 40 60 80 100 [Weight %] COC in Blend Materials: LLDPE Dow 2035, Plastomer ExxonMobil 3125, HDPE ExxonMobil HDZ222, TOPAS 8007 www.topas.com
  7. 7. Aroma/Odor Barrier LLDPE 80% TOPAS 8007 / 20% LLDPE 1 0.9 Relative Transmission Rate 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 Oxygen* Water** d-limonene*** Onion*** Sardine*** * 23C & 50% RH ** 38C & 90% RH *** 23C, MOCON technique, saturated vapor of “paste” www.topas.com
  8. 8. TOPAS® COC - Laminates / Pouches for Foodand Non-food Applications Description: Multi-layer pouches with PE/COC sealant layer Value Proposition: Improved stiffness 800 Potential for downgauging LLDPE/COC 60020% COC => 4x modulus LLDPE Excellent clarity & gloss E-Modul (MPa) m-LLDPE Controlled easy tear properties 400 Plastomer 200 Grade: 0 8007F-400 0 5 10 15 20 25 Weight % 78C Tg COC Customer: Not disclosed www.topas.com
  9. 9. Modulus as a Function of Temperature 2.7 mil Three-Layer Blown Film (COC + PE Blend / PE / COC + PE Blend) 250 2% Secant Modulus in MPa 200 150 70C 75C 100 80C 85C 50 0 LLDPE 10% 8007 8% 8007 10% 6013 (Dowlex 2045) (78°C Tg) 3% 6013 (136oC Tg) 136°C Tg grade dramatically increases modulus of PE at hot fill temperature www.topas.com
  10. 10. HDPE/COC Blends: G-Modulus 100% HDPE 10% TOPAS 5013 / 90% HDPE 20% TOPAS 5013 / 80% HDPE 10% TOPAS 6013 / 90% HDPE 20% TOPAS 6013 / 80% HDPE 10% TOPAS 6015 / 90% HDPE 20% TOPAS 6015 / 80% HDPE Addition of high Tg COC (e.g. 5013 & 6013) extends temperature resistance of HDPE/COC blends www.topas.com
  11. 11. HDPE/COC Blends: G-Modulus 10000 1000 Shear Modulus (N)/mm2 6017 6015 100 6013 8007 10 1 -40 0 40 80 120 160 200 240 Temperature ( °C) High modulus for temperature resistant applications www.topas.com
  12. 12. Formed 4.7-mil mono COC vs. 6-mil Polyolefin coex PP/LLDPE+LDPE/PP h-LLDPE w/15% 9506 & 6013 COC Cost ($/MSI) 160 Formed Corner Puncture (lb) 140 Gauge (mil) 120 100 Formed Cavity Puncture (lb) 80 Haze (%) 60 40 20Formed Cavity Gauge Variation (%) 0 Gloss (60o) Retained Volume (%) MD Modulus (ksi) TD Tensile Strength (ksi) TD Modulus (ksi) MD Tensile Strength (ksi) Thermoforming: Amorphous is best TOPAS® COC forms much better than other polyolefins www.topas.com
  13. 13. TOPAS® COC - Medical Device Packaging Description: Forming web for medical device packaging with PE/COC blends Value Proposition: Good forming properties Excellent dimensional stability Excellent stiffness Cost-effective solution: downgauging and reclaim PE COC Grades: PE/COC blend PE 68oC Tg and 78oC Tg Customer: Not disclosed www.topas.com
  14. 14. TOPAS® COC - Zipper/Closure System for Bags Description: Zipper (Pactiv Hefty® Slide-Rite®) Value Proposition: Curl and Shrinkage control (no camber) Easy open / close (COF) Mechanical strength and stiffness Moisture barrier COC Grades: 6013F-04, 8007F-04 Customer: Pactiv, US Others www.topas.com
  15. 15. TOPAS® COC Improves Seal Characteristics Seal Strength is typically maintained or improved with low Tg COC addition levels up to 15% in LDPE, LLDPE and plastomers. Hot Tack strength is increased up to 100% with the addition of 15% low Tg COC in LDPE, LLDPE, and plastomers. Seal Initiation Temperature (SIT) can increase by 5 to 10oC with low Tg COC levels of 15% depending on the base polyolefin. Blends using high Tg COC typically reduce sealability and can be utilized to reduce seal bar sticking in non-seal film surfaces. www.topas.com
  16. 16. Typical Film Structures (blends) COC / Polyethylene Blend Films  LDPE, LLDPE, Plastomer, EVA  Semi-compatible blends  Increasing compatibility EVA - HDPE - LDPE - LLDPE - Plastomer  Depending on...  crystallinity (density, refractive index)  side chains, viscosity  Typical blend mixes  5 - 30% PE in COC www.topas.com
  17. 17. TOPAS® COC – Basic Properties Glass transition temperatures, °C(°F)  Glass Clear, Transparent 70 - 180 (154 – 356)  Exceptional Purity Modulus of elasticity, N/mm2 (kpsi) 2600 – 3200 (380 – 460)  Low Water Transmission Rate (WVTR) Tensile strength, N/mm2 (kpsi) 66 (10)  High Stiffness, Deadfold Density, g/cm3  Resistant to Alcohols, Acids, 1.02 Bases, Polar Solvents Water uptake, % < 0.01  Broad Regulatory Clearances WVTR, g × mm/m2 (mil/100 in2) × day  Halogen-free 0.02 - 0.04 (0.05 – 0.10) www.topas.com
  18. 18. TOPAS® COC – Regulatory Status - Food & Medical USA  FDA regulation 21 CFR § 177.1520 “Olefin polymers” (3.9)  FDA Food Contact Notification (FCN #405), effective 2004, expanded prior FCN to cover all applications including bottles (See http://www.accessdata.fda.gov/scripts/fcn/fcnnavigation.cfm?rpt=fcslisting.)  FDA FCN #1104, effective Sep 2011, covers new E-140 grade for many conditions of use  FDA Drug Master File -- DMF #12132  FDA Device Master File -- MAF #1043 Europe  Monomers and additives are listed in the EU Plastics Regulation 10/2011 (PIM - Plastic Implementation Measure)  Norbornene has a Specific Migration Limit (SML) of 0.05 mg/kg TOPAS® COC is the only cyclic olefin resin meeting all major global regulatory requirements for food contact and medical use Contact us for compliance of specific grades! www.topas.com
  19. 19. Summary As a polyolefin, TOPAS® COC has good compatibility with most polyolefins. Addition of relatively low levels of COC can dramatically increase the modulus of polyolefins and the modulus enhancement is maintained up to the HDT of the COC. COC addition can be used to improve the barrier of polyolefins or to “fine tune” a target transmission. COC improves seal characteristics of many polyolefins. COC enhances thermoforming and reduces curl. www.topas.com

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