LyondellBasell Petrothene® LR732031 High Density Polyethylene

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LyondellBasell Petrothene® LR732031 High Density Polyethylene
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Extruded
Material Notes:	Applications PETROTHENE LR 7320-31 is a high density polyethylene resin that exhibits an excellent balance of stiffness and environmental stress crack resistance. This resin has outstanding extrusion characteristics and excellent melt strength. Regulatory Status LR 7320-31 meets the requirements of the Food and Drug Administration, regulation 21 CFR 177.1520. This regulation allows the use of olefin polymer in “...articles or components of articles intended for use in contact with food.” Specific limitations or conditions of use may apply. Processing Techniques Specific recommendations for processing LR 7320-31 can only be made when the processing conditions, equipment and end use are known. This product is from the former Equistar product line.
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Physical Properties	Original Value	Comments

Density	0.953 g/cc	ASTM D1505
Environmental Stress Crack Resistance	30 hour	F₅₀; ASTM D1693
	>= 500 hour	F₅₀; ASTM D2561
Melt Flow	0.30 g/10 min	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore D	67	ASTM D2240
Tensile Strength, Yield	4000 psi	ASTM D638
Elongation at Break	>= 500 %	ASTM D638
Flexural Modulus	181000 psi	ASTM D790
Tensile Impact	128 ft-lb/in	ASTM D1822

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	75.0 °C	ASTM D648
Vicat Softening Point	126 °C	ASTM D1525
Brittleness Temperature	<= -76.0 °C	F₅₀; ASTM D746

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

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PEQU0735 / 37204

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