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Eastman Eastar Copolyester BR003, Natural PCTA Copolyester

Category Polymer , Thermoplastic , Polyester, TP , PCTA Polyester Alloy , Polycyclohexylenedimethylene Terephthalate (PCT)
Manufacturer Eastman Chemical
Trade Name Eastar
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Eastman Eastar Copolyester BR003, Natural PCTA Copolyester.pdf
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Material Notes:
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).Applications: ToothbrushesProperties 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.Information provided by Eastman Chemical.
Physical Properties Metric English Comments
Density 1.20 g/cc
0.0434 lb/in³
ASTM D792
Linear Mold Shrinkage, Flow 0.0040 cm/cm

@Thickness 3.20 mm
0.0040 in/in

@Thickness 0.126 in
ASTM D955
Mechanical Properties Metric English Comments
Hardness, Rockwell R 103
103
ASTM D785
Tensile Strength, Ultimate 46.0 MPa
6670 psi
ISO 527
51.0 MPa
7400 psi
ASTM D638
Tensile Strength, Yield 47.0 MPa
6820 psi
ASTM D638 and ISO 527
Elongation at Break 200 %
200 %
ISO 527
Elongation at Yield 4.0 %
4.0 %
ISO 527
Tensile Modulus 1.80 GPa
261 ksi
ISO 527
Flexural Yield Strength 65.0 MPa
9430 psi
ISO 178
69.0 MPa
10000 psi
ASTM D790
Flexural Modulus 1.85 GPa
268 ksi
ISO 178
Izod Impact, Notched 0.800 J/cm
1.50 ft-lb/in
ASTM D256
0.400 J/cm

@Temperature -40.0 °C
0.749 ft-lb/in

@Temperature -40.0 °F
ASTM D256
Thermal Properties Metric English Comments
Deflection Temperature at 0.46 MPa (66 psi) 73.0 °C
163 °F
ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 65.0 °C
149 °F
ASTM D648
Optical Properties Metric English Comments
Haze 0.30 %
0.30 %
ASTM D1003
Transmission, Visible 89 %
89 %
Regular transmittance per ASTM D 1003
91 %
91 %
Total Transmittance; ASTM D 1003
Processing Properties Metric English Comments
Melt Temperature 255 °C
491 °F
Mold Temperature 22.5 °C
72.5 °F
Drying Temperature 70.0 °C
158 °F
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