Dow 722 Low Density Polyethylene (LDPE)

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Dow 722 Low Density Polyethylene (LDPE)
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Low Density (LDPE)
Material Notes:	Polyethylene 722 is used in flexible packaging and paperboard coating applications such as liquid/juice, laminate tube, condiment pouches, dry foods packaging, snack foods packaging, moist foods packaging, sugar pouches, lidding stock and medical packaging. Information provided by Dow
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Physical Properties	Original Value	Comments

Density	0.918 g/cc	ASTM D792
Water Vapor Transmission	26.4 g/m²/day	at 1 atm; 1.0 mil coating onto 50 lb Kraft paper; ASTM F1249
Thickness	>= 0.300 mil	Coating Thickness; Extrusion Coating Processability; Dow Method
Melt Index of Compound	8.0 g/10 min	ASTM D1238
Neck In	5.10 cm	610°F and 1.0 mil; Extrusion Coating Processability; Dow Method
Coating Weight	>= 4.40 lb/ream	Extrusion Coating Processability; Dow Method

Mechanical Properties	Original Value	Comments
Coefficient of Friction, Dynamic	0.60	(film/film); 1.0 mil coating onto 50 lb Kraft paper; ASTM D1894
Heat Seal Strength Initiation Temperature	105 °C	1 lb/in heat seal strength; 1.0 mil coating onto 50 lb Kraft paper; Dow Method

Thermal Properties	Original Value	Comments
Melting Point	105 °C	Dow Method (DSC)
Vicat Softening Point	90.0 °C	ASTM D1525

Processing Properties	Original Value	Comments
Melt Temperature	315 - 332 °C	Extrusion Coating Processability

Descriptive Properties
Line Speed fpm, max	1500	Dow Method

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PDOW1222 / 30440

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