Product Data Sheet

Eastar Copolyester BR003, Natural

Application/Uses
  • Oral hygiene
  • Plastics for hygiene feminine products
  • Toothbrushes
Product Description
Eastar BR003 Copolyester contains a mold release additive. It has excellent appearance and is nearly water-clear. Its most outstanding features are its chemical resistance and processing capabilities. Exposure to aromatic oils often causes crazing or actual fracture of many polymer resins, but BR003 maintains its physical properties when exposed to these oils, and its appearance is virtually unchanged. BR003 is specifically formulated to provide the optimal combination of chemical resistance, bristle retention, strength, stiffness, processability, clarity, colorability, and feel for toothbrushes. Under existing United States Food and Drug Administration(FDA) regulations, Eastar BR003 copolyester may lawfully be used to make food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240. Migration tests on BR003 samples meet the compliance requirements of 21 CFR 177.1240(e)(1),(2) and (3).

This product has been GREENGUARD INDOOR AIR QUALITY CERTIFIED®.
The GREENGUARD INDOOR AIR QUALITY CERTIFIED® Mark is a registered certification mark used under license through the GREENGUARD Environmental Institute (GEI). GEI is an industry-independent, non-profit organization that oversees the GREENGUARD Certification Program. The GREENGUARD Certification Program is an industry independent, third-party testing program for low-emitting products and materials for indoor environments. For more information about GEI and to obtain printable certificates for Eastman Copolyesters, visit www.greenguard.org. Choose Eastman Chemical Company under the Manufacturer category and click search to display a list of our products.


Typical Properties
 
 
Specific Gravity     D 792  1.20 
Mold Shrinkage   Parallel to Flow, 3.2-mm (0.125-in.) thickness  D 955  0.002-0.006 mm/mm (0.002-0.006 in./in.)
 
Tensile Stress @ Yield     D 638  47 MPa (6900 psi)
Tensile Stress @ Break     D 638  51 MPa (7400 psi)
Elongation @ Yield     D 638  5%
Elongation @ Break     D 638  320%
Flexural Modulus     D 790  2000 MPa (2.9 )
Flexural Yield Strength     D 790  69 MPa (10000 psi)
Rockwell Hardness, R Scale     D 785  103 
Izod Impact Strength, Notched 
  @ 23°C (73°F)
D 256  80 J/m (1.5 ft·lbf/in.)
  @ -40°C (-40°F)
D 256  40 J/m (0.7 ft·lbf/in.)
Impact Strength, Unnotched 
  @ 23°C (73°F)
D 4812  NB 
  @ -40°C (-40°F)
D 4812  NB 
Impact Resistance (Puncture), Energy @ Max. Load 
  @ 23°C (73°F)
D 3763  42 J (31 ft·lbf)
  @ -40°C (-40°F)
D 3763  48 J (35 ft·lbf)
 
Tensile Strength @ Yield     ISO 527  47 MPa
Tensile Strength @ Break     ISO 527  46 MPa
Elongation @ Yield     ISO 527  4%
Elongation @ Break     ISO 527  200%
Tensile Modulus     ISO 527  1800 MPa
Flexural Modulus     ISO 178  1850 MPa
Flexural Strength     ISO 178  65 MPa
Izod Impact Strength, Notched 
  @ 23°C
ISO 180  7.8 
  @ -40°C
ISO 180  4.8 
 
Deflection Temperature 
  @ 0.455 MPa (66 psi)
D 648  73°C (164°F)
  @ 1.82 MPa (264 psi)
D 648  65°C (149°F)
 
Haze     D 1003  0.3%
Regular Transmittance     D 1003  89%
Total Transmittance     D 1003  91%
 
Drying Temperature       70°C (160°F)
Drying Time       3 hrs
Processing Melt Temperature       230-280°C (450-530°F)
Mold Temperature       15-30°C (60-80°F)
General
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

22-Jan-2002 11:40:28 AM