DOW LDPE 722
Dow Plastics - Polyethylene, Low Density

General Information
Product Description

- Typical applications include caps/closures
- Good impact, ESCR with excellent flexibility
- Complies with U.S. FDA 21 CFR 177.1520 (c) 2.1.
Consult the regulations for complete details.

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

General  
Material Status
  • Commercial: Active
    • Availability
  • Asia
  • Europe
  • Latin America
  • North America
    • Test Standards Available
  • ASTM
    • Agency Ratings
  • FDA 21 CFR 177.1520(c) 2.1   1
    • Forms
  • Pellets
    • Processing Method
  • Injection Molding
    •  
    ASTM and ISO Properties 2
    Physical
    Nominal Value
    Unit
    Test Method
    Density -Specific Gravity
    0.918
    sp gr 23/23°C
    ASTM D792
    Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)
    8.00
    g/10 min
    ASTM D1238
    Enviro. Stress Crack Res
    1.00
    hr
    ASTM D1693
    Mechanical
    Nominal Value
    Unit
    Test Method
    Tensile Strength @ Yield
    1200
    psi
    ASTM D638
    Tensile Strength @ Break
    1400
    psi
    ASTM D638
    Tensile Elongation @ Yld
    4.0
    %
    ASTM D638
    Tensile Elongation @ Brk
    500
    %
    ASTM D638
    Flexural Modulus
    2% Secant: 34000
    psi
    ASTM D790
    Coef. of Friction (vs. Itself - Static, Extrusion Coating)
    0.60
     
    ASTM D1894
    Films
    Nominal Value
    Unit
    Test Method
    Seal Initiation Temp (Extrusion Coating) 3
    221
    °F
     
    Water Vapor Trans Rate (1.00 mil, Extrusion Coating)
    1.7
    g-mil/100in²at-d
    ASTM F1249
    Impact
    Nominal Value
    Unit
    Test Method
    Tensile Impact Strength
    130
    ft-lb/in²
    ASTM D1822
    Hardness
    Nominal Value
    Unit
    Test Method
    Durometer Hardness
    43
     
    ASTM D2240
    Thermal
    Nominal Value
    Unit
    Test Method
    DTUL @66psi - Unannealed
    99.0
    °F
    ASTM D648
    Brittle Temperature
    -76.0
    °F
    ASTM D746
    Vicat Softening Point
    190
    °F
    ASTM D1525
    Melting Point
    224
    °F
    DSC
    Peak Crystallization Temperature (DSC)
    204
    °F
    ASTM D3418
     
    Processing Information
    Extrusion
    Nominal Value
    Unit
    Melt Temperature
    600 to 630
    °F
     
    Notes
    1 When used unmodified for the manufacture of food contact articles, DOW LDPE 722 will comply with Food Additive Regulations FDA 21 CFR 177.1520(c) 2.1 under the U.S. Food, Drug and Cosmetic Act. Such uses are subject to good manufacturing practices and any other limitations which are part of the statute or regulations. These should be consulted for complete details.
    2 Typical properties: these are not to be construed as specifications.
    3 1.00 mil
       
     

    Makes no representation or warranty of any kind, express or implied, with respect to this product, as to merchantability, Fitness for particular purpose or otherwise. The data listed represents average values and are believed to be reliable, They are given for information; no guarantee of their accuracy is made, however, and the product is sold upon condition that purchasers shall make their own test to determinate the characteristics of the product and the suitability of the product for their particular process.