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DOW™ LDPE 722

Low Density Polyethylene Resin

Supplied by The Dow Chemical Company

The technical datasheet with complete property values for DOW™ LDPE 722 is available to members of the Prospector Plastics Database.
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Product Description
Dow™ LDPE 722 is used in flexible packaging and paperboard coating applications such as liquid/juice, laminate tube, condiment pouches, dry foods packaging, snack foods packaging, moist foods packaging, sugar pouches, lidding stock and medical packaging. DOW LDPE extrusion coating resins provide optimal neck-in and draw-down performance with minimal taste/odor contribution.

DOW Polyethylene 722 is a broad molecular weight distribution homopolymer designed to offer good impact strength and crack resistance, with excellent flexibility. The resin has good processability over a wide range of molding conditions.

  • Typical applications include caps/closures
  • Good impact, ESCR with excellent flexibility

Complies with:
  • CANADIAN HPFB NO OBJECTION (WITH LIMITATIONS)
  • EU, No 10/2011
  • U.S. FDA 21 CFR 177.1520 (c) 2.2
  • U.S. FDA DMF
Consult the regulations for complete details.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Latin America
  • North America
Agency Ratings 
  •  1
 
Forms 
  • Pellets
Processing Method 
  • Extrusion Coating
  • Injection Molding
 
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
ASTM D792
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)
g/10 min
ASTM D1238
Environmental Stress-Cracking Resistance 3 (122°F, 100% Igepal, F50)
hr
ASTM D1693
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength 3
    ASTM D638
Yield
psi
 
Break
psi
 
Tensile Elongation 3
    ASTM D638
Yield
%
 
Break
%
 
Flexural Modulus - 2% Secant 3
psi
ASTM D790B
Coefficient of Friction
 
ASTM D1894
Films
Nominal Value
Unit
Test Method
Seal Initiation Temperature 4
°F
Internal Method
Water Vapor Transmission Rate
g·mil/100in²/atm/24 hr
ASTM F1249
Impact
Nominal Value
Unit
Test Method
Tensile Impact Strength 5, 3
ft·lb/in²
ASTM D1822
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness 3 (Shore D)
 
ASTM D2240
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load 3 (66 psi, Unannealed)
°F
ASTM D648
Brittleness Temperature 3
°F
ASTM D746
Vicat Softening Temperature
°F
ASTM D1525
Melting Temperature (DSC)
°F
Internal Method
Peak Crystallization Temperature (DSC)
°F
Internal Method
Additional Information
Nominal Value
Unit
Test Method
Melt Temperature - Recommended
°F
Internal Method
Fabrication Conditions For Extrusion Coating Film:
  • Screw Size: 3.5 in. (89 mm); 30:1 L/D
  • Screw Type: Single Flight with Maddock Mixer
  • Die Gap: 20 mil (0.508 mm)
  • Melt Temperature: 625°F (329°C)
  • Output: 250 lb/hr
  • Screw Speed: 90 rpm
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: DOW™ LDPE 722, DOW LDPE 722, DOW™ LDPE , DOW LDPE, DOWLDPE722, DOWLDPE, LDPE 722, LDPE722, LDPE, 722, Polyethylene, Low Density, Polyethylene Low Density, Polyethylene, PE, Dow, PolyethyleneLowDensity, 722LDPE
Agency Ratings
This plastic material has 4 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): DMF (1), EU (1), HPFB (Canada) (1), FDA (1).
Extrusion
Nominal Value
Unit
Test Method
Maximum Line Speed
ft/sec
Internal Method
Minimum Coating Thickness
mil
Internal Method
Minimum Coating Weight
lb/ream
Internal Method
Neck-in (610°F, 1.0 mil)
in
Internal Method
Notes
1With limitations
2Typical properties: these are not to be construed as specifications.
3Molded and tested in accordance with ASTM D4976.
4Temperature at which 1 lb/in (4.4 N/25.4 mm) heat seal strength is achieved.
Heat Seal Strengths, Topware HT Tester 0.5 S dwell, 40 pis bar pressure, pull speed 250 mm/sec.
5Type S
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.