Introduction
PRIMACOR™ 3003 Copolymer is an ethylene acrylic acid copolymer which has been specifically designed by SK for use as an adhesive or sealant layer in extrusion coating and extrusion lamination.
PRIMACOR™ 3003 Copolymer exhibits:
· Excellent draw-down and edge stability
· Excellent organoleptic properties
· Excellent toughness and strength
· Outstanding environmental stress crack and product resistance
· Excellent hot-tack and sealability
· Adhesion to paper, paperboard, metals and polyethylenes
· Insensitivity to moisture
Parameters
| Nominal Value (English) | Nominal Value (SI) | Test Method | ||
Resin | Density | 0.935 g/cm3 | 0.935 g/cm3 | ASTM D792 ISO 1183 |
Melt Index (2.16 kg @190℃) | 7.8 g/10min | 7.8 g/10min | ASTM D1238 | |
| Comonomer Content | 6.5 % | 6.5 % | SK Method | |
| Vicat Softening Temperature | 194 ℉ | 90.0 ℃ | ASTM D1525 ISO 306 | |
| Melting Temperature (DSC) | 212 ℉ | 100 ℃ | SK Method | |
Mechanical | Tensile Modulus - 2% Secant (Compression Molded) | 18900 psi | 130 MPa | ASTM D638 |
Tensile Strength at Yield | 1090 psi | 17.6 Mpa | ASTM D638 ISO 527-2 | |
| Tensile Strength at Break (Compression Molded) | 2610 psi | 18.0 Mpa | ASTM D638 ISO 527-2 | |
Tensile Elongation at Break (Compression Molded) | 590 % | 590 % | ASTM D638 ISO 527-2 | |
| Extrusion | Melt Temperature | 500 - 554 ℉ | 260 -290 ℃ | - |
Minimum Coating Weight (554 ℉ (290℃)) | 4.9 lb/ream | 8.0 g/m2 | SK Method | |
Neck-in 3 (554 ℉ (290℃)) | 1.8 in | 45.7 mm | SK Method |
1 Comonomer content measured by a SK proprietary method that has equivalent accuracy as compared to ASTM D 4094.
2 25 g/m2 coatings at 290℃ set temperature
3 at 100 m/min, 25 g/m2 coatings
Application
· Flexible packaging laminates
· Liquid packaging board laminates
Extrusion Notes
Equipment used to process this resin should be constructed of corrosion resistant materials. Dies and adapters are
recommended to be stainless and/or duplex chrome or nickel plated.
Notes
These are typical values and are not be construed as specifications. The physical properties are highly dependent on the
manufacturing conditions. So customers should confirm performances by their own tests.
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