Eastman Eastar BR001 Copolyester

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Eastman Eastar BR001 Copolyester (discontinued **)
Categories:	Polymer; Thermoplastic; Polyester, TP
Material Notes:	Eastar BR001 Copolyester 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 BR001 maintains its physical properties when exposed to these oils, and its appearance is virtually unchanged. BR001 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 BR001 copolyester may lawfully be used to make food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240(a). Migration tests on BR001 samples meet the compliance requirements of 21 CFR 177.1240(3)(1), (2) and (3). Applications/Uses Oral hygiene Plastics for hygiene feminine products Toothbrushes
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Physical Properties	Original Value	Comments

Specific Gravity	1.20 g/cc	ASTM D792
Linear Mold Shrinkage	0.0020 - 0.0060 cm/cm @Thickness 3.20 mm	ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	103	ASTM D785
Tensile Strength at Break	51.0 MPa	ASTM D638
Tensile Strength, Yield	47.0 MPa	ASTM D638
Elongation at Break	320 %	ASTM D638
Elongation at Yield	5.0 %	ASTM D638
Flexural Yield Strength	69.0 MPa	ASTM D790
Flexural Modulus	2.00 GPa	ASTM D790
Izod Impact, Notched	0.400 J/cm @Temperature -40.0 °C	ASTM D256
	80.0 J/m @Temperature 23.0 °C	ASTM D256
Izod Impact, Unnotched	NB	ASTM D4812
	NB @Temperature -40.0 °C	ASTM D4812
Puncture Energy	42.0 J	Puncture Resistance @Max Load, 23°C; ASTM D3763
	48.0 J @Temperature -40.0 °C	Puncture Resistance at Max Load; ASTM D3763

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	73.0 °C	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	65.0 °C	ASTM D648

Optical Properties	Original Value	Comments
Haze	0.30 %	ASTM D1003
Transmission, Visible	89 %	Regular Transmittance; ASTM D1003
	91 %	Total Transmittance; ASTM D1003

Processing Properties	Original Value	Comments
Melt Temperature	230 - 280 °C
Mold Temperature	15.0 - 30.0 °C
Drying Temperature	70.0 °C
Dry Time	3 hour

Compliance Properties	Original Value	Comments
FDA	Yes	See notes for details.

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PE9026 / 35082

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