haht.product_family: LDLPE; Enhanced, haht.material_numbers: , haht.trade_name: TR-257, haht.conversion_process: Blown Film; ; , haht.product_name: Polyethylene, haht.content_type: TDS, cpchem.advancedSearch.section:
TDS - TR-257
For more information and technical
assistance contact:
Chevron Phillips Chemical Company LP
P.O. Box 4910
The Woodlands, TX 77387-4910
800.231.1212
SUPERIOR FLEXIBLE PACKAGING RESINS
MarFlex® TR-257
LOW DENSITY LINEAR POLYETHYLENE

This LDLPE is tailored for applications that require:
  • Good processibility
  • Good melt strentgh
  • Good drawdown
  • Good strength
  • Satin finish
  • Good MD & TD shrinkage
    Typical blown film applications include:
  • Pallet shrink
  • Heavy duty bags
  • Consumer & institutional shrink film
  • General purpose packaging

    • Nominal Resin Properties English SI Method
      Density --- 0.923 g/cm3 ASTM D1505
      Melt Index, 190C/2.16Kg --- 0.2 g/10min ASTM D1238
      Process Aid None None ---
      Antiblock None None ---
      Slip None None ---

    Nominal Blown Film Proprties at 1 mil1 English SI Method
      Haze 40 % 40 % ASTM D1003
      Gloss, 60° 30 30 ASTM D2457
      COF 0.35 0.35 ASTM D1894
      Dart --- 350 g/mil ASTM D1709
      Elmendorf Tear MD --- 95 g/mil ASTM D1922
      Elmendorf Tear TD --- 450 g/mil ASTM D1922
      Tensile Strength at Yield MD 2100 psi 15 MPa ASTM D882
      Tensile Strength at Yield TD 1800 psi 13 MPa ASTM D882
      Tensile Strength at Break MD 6550 psi 45 MPa ASTM D882
      Tensile Strength at Break TD 6300 psi 43 MPa ASTM D882
      Tensile Strength Elongation at Break MD 500 % 500 % ASTM D882
      Tensile Strength Elongation at Break TD 600 % 600 % ASTM D882
      1% Secant Modulus MD 26000 psi 179 MPa ASTM D882
      1% Secant Modulus TD 30000 psi 207 MPa ASTM D882
    1. Produced on HDPE line 4:1 BUR 35 mil Die Gap 8 in Die 56 in FLH 240 lbs/hr 420 F Melt Temperature
    MSDS #240370 Revision Date January, 2005
    Before using this product, the user is advised and cautioned to make its own determination and assessment of the safety and suitability of the product for the specific use in question and is further advised against relying on the information contained herein as it may relate to any specific use or application. It is the ultimate responsibility of the user to ensure that the product is suited and the information is applicable to the user's specific application. Chevron Phillips Chemical Company LP does not make, and expressly disclaims, all warranties, including warranties of merchantability or fitness for a particular purpose, regardless of whether oral or written, express or implied, or allegedly arising from any usage of any trade or from any course of dealing in connection with the use of the information contained herein or the product itself. The user expressly assumes all risk and liability, whether based in contract, tort or otherwise, in connection with the use of the information contained herein or the product itself. Further, information contained herein is given without reference to any intellectual property issues, as well as federal, state or local laws which may be encountered in the use thereof. Such questions should be investigated by the user.
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