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Eastman Tritan™ Copolyester EX501

Eastman Tritan™ Copolyester EX501 by Eastman Chemical Company is an amorphous copolyester grade. It shows consistent glass-like clarity even after multiple dishwasher cycles. It exhibits low taste, odor retention, excellent drop impact resistance and dishwasher durability. It is recommended for baby bottles, breast pump accessories, infant care, pacifiers and sippy cups. Eastman Tritan™ Copolyester EX501 meets infant care sterilization requirements via boiling water or microwave steam sterilization. It can be converted into parts using injection molding, injection stretch blow molding (ISBM), and extrusion blow molding techniques. It can also be molded into various applications without incorporating high levels of residual stress. It offers outstanding stain resistance, chemical resistance and hydrolytic stability. Eastman Tritan™ Copolyester EX501 follows United States Food and Drug Administration (FDA) regulations.
Product Type
Polyester
Product Status
COMMERCIAL
Applications/ Recommended for
  • Households products/ Consumer Goods > Baby bottles
  • Appliances > Dishwashers
  • Extrusion > Blow molding
  • Injection molding - thermoplastics > Stretch blow molding
Food contact approval
Yes
Key Features
  • Amorphous
  • Chemical resistance, Good
  • Clarity, High
  • Food Contact Acceptable
  • Heat Resistance, High
  • Hydrolytically Stable
  • Impact resistance, High
  • Residual Stress, Low to None
  • Stain resistance
  • Sterilizability, Good

Eastman Tritan™ Copolyester EX501 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Linear Mold Shrinkage
0.005 - 0.007 mm/mm
( )
ASTM D955
Specific Gravity
1.18
( )
ASTM D792

Eastman Tritan™ Copolyester EX501 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Drying Temperature
88 °C
Drying Time
4 - 6 hr
Dew Point
< -35 °C

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