PRIMACOR 3460
PRIMACOR™ 3460 Copolymer is an ethylene acrylic acid copolymer suitable for extrusion coating and extrusion lamination applications. PRIMACOR™ 3460 Copolymer has been specifically designed for use as a sealant and adhesive layer in flexible packaging laminates and thin paper coating.
Introduction
PRIMACOR™ 3460 Copolymer is an ethylene acrylic acid copolymer suitable for extrusion coating and extrusion lamination applications. RIMACOR™ 3460 Copolymer has been specifically designed for use as a sealant and adhesive layer in flexible packaging laminates and thin paper coating.
PRIMACOR™ 3460 Copolymer exhibits:
· Excellent heat sealability and hot tack
· Excellent adhesion to metallic, paper and polyethylene substrates
· Good stress crack resistance
· Designed specifically for high line speeds and low processing temperature
· Insensitive to moisture
Parameters
| Nominal Value (English) | Nominal Value (SI) | Test Method | ||
| Resin Properties |
Density | 0.938 g/cm3 | 0.938 g/cm3 | ASTM D792
ISO 1183 |
| Melt Index (2.16 kg @125℃) | 20 g/10min | 20 g/10min | ASTM D1238 ISO 1133 |
|
| Comonomer Content | 9.7 % | 9.7 % | SK Method | |
| Vicat Softening Temperature | 162 ℉ | 72.2 ℃ | ASTM D1525
ISO 306 |
|
| Melting Temperature (DSC) | 203 ℉ | 95.0 ℃ | SK Method | |
| Film
Properties |
Seal Initiation Temperature 2 | 185 ℉ | 85.0 ℃ | SK Method |
| Water Vapor Transmission Rate 100 ℉ (38 ℃), 90% RH | 1.1
g·mil/100in2/atm/24hr |
0.44
g·mm/m2/atm/24hr |
DIN 53122/2 | |
| Mechanical Properties |
Tensile Strength at Yield (Compression Molded) |
1050 psi | 7.24 MPa | ASTM D638 ISO 527-2 |
| Tensile Strength at Break (Compression Molded) |
2350 psi | 16.2 MPa | ASTM D638
ISO 527-2 |
|
| Tensile Elongation at Break (Compression Molded) | 580 % | 580 % | ASTM D638
ISO 527-2 |
|
| Extrusion | Melt Temperature | 428 – 500 ℉ | 220 -260 ℃ | |
| Minimum Coating Thickness | 0.40 mil | 10 μm | SK Method | |
| Minimum Coating Weight | 6.0 lb/ream | 9.8 g/m2 | SK Method | |
| Neck-in3 | 2.8 in. | 71.1 mm | SK Method | |
| Extrusion
Condition 4 |
· Screw Size: 3.5 in. (89 mm); 30:1 L/D · Die Gap: 20 mil (0.508 mm)
· Die: 30 in. (762 mm) die deckled to 24 in. (609.6 mm) · Melt Temperature: 425 ℉(218 ℃) · Output: 250 lb/hr (113.4 kg/hr) · Air Gap: 6 in. (152 mm) |
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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.
3 550 ℉(288 ℃), 1.0 mil (25.4 µm)
4 Equipment used to process this resin should be constructed of corrosion resistant materials. Dies and adapters are recommended to be stainless steels and/or duplex chrome or nickel plated.
Application
Ethylene and acrylic acid (EAA) copolymer resins offer excellent adhesion to polar substrates without the need for primers. Applications include liquid aseptic, dry-food and laminated tube container packaging, and cable shielding.
· Flexible packaging
· Thin paper coating
· Metallic substrate lamination
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.