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Eastman Tritan™ EX501 Copolyester
Categories: Polymer; Thermoplastic; Polyester, TP

Material Notes: Product Description: Tritan™ EX501 is an amorphous copolyester specifically developed for the Infant Care market. Its most outstanding features are consistent glass-like clarity even after multiple dishwasher cycles. Additionally, Tritan™ EX501 exhibits low taste and odor retention versus cPP, excellent drop impact resistance, and dishwasher durability. Tritan™ EX501 contains a mold release derived from vegetable based sources. Tritan™ EX501 meets infant care sterilization requirements via boiling water or microwave steam sterilization. This new-generation copolyester can also be molded into various applications without incorporating high levels of residual stress. Combined with Tritan™ copolyester's outstanding chemical resistance and hydrolytic stability, these features give molded products enhanced durability in the dishwasher environment, which can expose products to high heat, humidity, and aggressive cleaning agents. Tritan™ EX501 can be converted into parts using injection molding, injection stretch blow molding (ISBM), and extrusion blow molding techniques. Tritan™ EX501 copolyester may be used in repeated-use food contact articles under United States Food and Drug Administration (FDA) regulations. Contact an Eastman representative for details on global food contact regulatory clearances. Eastman Tritan™ EX501 copolyester is included in Eastman Chemical Company’s Customer Notification Procedure which details our policy for customer notification when significant changes are made in Tritan™ EX501 sold into the infant care market. This procedure provides the infant care industry an added layer of confidence in the consistent quality and performance of Tritan.

Application/Uses:

  • Baby bottles
  • Breast pump accessories
  • Infant care
  • Pacifiers
  • Sippy cups
Key Attributes:
  • Dishwasher durability: Chemical resistance; Heat resistance; Hydrolytic stability
  • Drop impact resistance
  • Glass-like clarity
  • Global food contact regulatory clearances
  • Low taste and odor retention
  • Stain resistance
  • Sterilization capable via microwave steaming and boiling water immersion

Information provided by Eastman

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Physical PropertiesMetricEnglishComments
Density 1.18 g/cc0.0426 lb/in³ASTM D792
Linear Mold Shrinkage 0.0050 - 0.0070 cm/cm0.0050 - 0.0070 in/inASTM D955
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 109109ASTM D785
Tensile Strength at Break 55.0 MPa7980 psiISO 527
 56.0 MPa8120 psiASTM D638
Tensile Strength, Yield 44.0 MPa6380 psiISO 527
 45.0 MPa6530 psiASTM D638
Elongation at Break 151 %151 %ISO 527
 176 %176 %ASTM D638
Elongation at Yield 6.0 %6.0 %ASTM D638
 6.0 %6.0 %ISO 527
Tensile Modulus 1.516 GPa219.9 ksiASTM D638
 1.538 GPa223.1 ksiISO 527
Flexural Yield Strength 72.0 MPa10400 psiASTM D790
Izod Impact, Notched  1.36 J/cm
@Temperature -40.0 °C
2.55 ft-lb/in
@Temperature -40.0 °F
ASTM D256
 10.24 J/cm
@Temperature 23.0 °C
19.18 ft-lb/in
@Temperature 73.4 °F
ASTM D256
Izod Impact, Unnotched  NB
@Temperature -40.0 °C
NB
@Temperature -40.0 °F
ASTM D4812
 NB
@Temperature 23.0 °C
NB
@Temperature 73.4 °F
ASTM D4812
Izod Impact, Notched (ISO)  14.0 kJ/m²
@Temperature -40.0 °C
6.66 ft-lb/in²
@Temperature -40.0 °F
ISO 180
 114 kJ/m²
@Temperature 23.0 °C
54.2 ft-lb/in²
@Temperature 73.4 °F
ISO 180
Puncture Energy  57.0 J
@Temperature 23.0 °C
42.0 ft-lb
@Temperature 73.4 °F
Energy @ Max. Load; ASTM D3763
 66.0 J
@Temperature -40.0 °C
48.7 ft-lb
@Temperature -40.0 °F
Energy @ Max. Load; ASTM D3763
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 101 °C214 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 88.0 °C190 °FASTM D648
 
Optical PropertiesMetricEnglishComments
Haze <= 1.0 %<= 1.0 %ASTM D1003
Transmission, Visible 6.0 %6.0 %after re-equilibration (8-hr boiling)
 91 %91 %Total; ASTM D1003
 
Processing PropertiesMetricEnglishComments
Melt Temperature 260 - 282 °C500 - 540 °F
Mold Temperature 38.0 - 66.0 °C100 - 151 °F
Drying Temperature 88.0 °C190 °F
Dry Time 4.00 - 6.00 hour4.00 - 6.00 hour

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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