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Technical Data Sheet
Drystar™ 0827 Copolyester


Applications
  • Jars-skin care pkg

Product Description

Eastman is pleased to announce the launch of DRYSTAR* copolyesters. This new product-line is designed to meet the needs of converters seeking value-added solutions to their drying requirements of copolyesters. Eastman’s copolyesters are highly valued for their excellent balance of properties such as superior aesthetics, impact strength, and chemical resistance. These properties can be optimally realized when the resins are properly dehydrated in accordance to recommended drying conditions and equipment.

Recognizing this value, Eastman conceived Drystar™ copolyesters to allow converters with limited access to desiccant dryers to achieve these optimizations. In addition, some converters with desiccant dryers may still find Drystar™ copolyesters value-adding to attain production flexibility and cost saving by removing the drying process prior to injection molding, profile extruding, or extrusion blow molding copolyesters. The initial launch comprises of the commercialization of four grades of Drystar™ copolyesters and Eastman has on-going program to extend this strategic product-line in the future.

*DRYSTAR is only available in the Asia Pacific Region.



Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Specific GravityD 7921.27
Mold ShrinkageD 9550.002-0.005 mm/mm
Mechanical Properties
Tensile Stress @ YieldD 63850 MPa (7200 psi)
Tensile Stress @ BreakD 63825 MPa (3600 psi)
Elongation @ YieldD 6384 %
Elongation @ BreakD 63836 %
Flexural ModulusD 7902200 MPa (3.2 x 105 psi)
Flexural StrengthD 79073 MPa (10500 psi)
Rockwell Hardness, R ScaleD 785104
Izod Impact Strength, Notched 
     @ 23°C (73°F)D 25685 J/m (1.5 ft·lbf/in.)
     @ -40°C (-40°F)D 25639 J/m (0.7 ft·lbf/in.)
Impact Strength, Unnotched 
     @ 23°C (73°F)D 4812NB
     @ -40°C (-40°F)D 4812NB
Impact Resistance (Puncture), Energy @ Max. Load 
     @ 23°C (73°F)D 376331 J (23 ft·lbf)
     @ -40°C (-40°F)D 376347 J (35 ft·lbf)
Optical Properties
HazeD 10030.4 %
Total TransmittanceD 100390 %
Thermal Properties
Deflection Temperature 
     @ 0.455 MPa (66 psi)D 64865 °C (149 °F)
     @ 1.82 MPa (264 psi)D 64860 °C (140 °F)
Typical Processing Conditions
Drying Temperatured 70 °C (160 °F)
Drying Timed 6 hrs
Processing Melt Temperature 249-271 °C (480-520 °F)
Mold Temperature 16-38 °C (60-100 °F)

aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
bUnless noted otherwise, the test method is ASTM.
cUnits are in SI or US customary units.
dDrying is only recommended for products previously opened and exposed to humid conditions.



Comments
Properties reported here are based on limited testing. Eastman makes no representation that the material in any particular shipment will conform to the values given.


Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.


2/28/2018 11:35:39 AM