Description
SK PRIMACOR 3003 is an EAA resin, also known as Ethylene Acrylic Acid Copolymer. It is designed for use as an adhesive or sealant layer in extrusion coating and extrusion lamination applications. This grade provides good adhesion to paper, paperboard, metals and polyethylene substrates, making it suitable for flexible packaging laminates and liquid packaging board laminates.
PRIMACOR 3003 offers excellent draw-down and edge stability, excellent organoleptic properties, toughness, strength, environmental stress crack resistance and product resistance. It also provides excellent hot-tack and sealability, helping improve bonding and sealing performance in multilayer packaging structures.
Key Features
– Excellent draw-down and edge stability
– Excellent organoleptic properties
– Excellent toughness and strength
– Outstanding environmental stress crack resistance
– Good product resistance
– Excellent hot-tack and sealability
– Good adhesion to paper, paperboard, metals and polyethylene
– Low sensitivity to moisture
– Suitable for extrusion coating and extrusion lamination
– No antiblock and no slip additives
Applications
– Extrusion coating
– Extrusion lamination
– Flexible packaging laminates
– Liquid packaging board laminates
– Paper and paperboard coating
– Aluminum foil lamination
– Polyethylene bonding layer
– Sealant layer for multilayer packaging structures
– Food packaging composite structures
– Beverage packaging laminates
– Oil and grease resistant packaging
– Industrial flexible packaging
Properties
| Category | Property | Nominal Value (English) | Nominal Value (SI) | Test Method |
|---|---|---|---|---|
| Resin Properties | Density | 0.935 g/cm³ | 0.935 g/cm³ | ASTM D792 / ISO 1183 |
| Resin Properties | Melt Index (2.16 kg @190°C) | 7.8 g/10min | 7.8 g/10min | ASTM D1238 / ISO 1133 |
| Resin Properties | Comonomer Content | 6.5% | 6.5% | SK Method |
| Resin Properties | Vicat Softening Temperature | 194°F | 90.0°C | ASTM D1525 / ISO 306/A |
| Resin Properties | Melting Temperature (DSC) | 212°F | 100°C | SK Method |
| Film Properties | Seal Initiation Temperature | 194°F | 90.0°C | SK Method |
| Mechanical Properties | Tensile Modulus – 2% Secant, Compression Molded | 18900 psi | 130 MPa | ASTM D638 / ISO 527-2 |
| Mechanical Properties | Tensile Strength at Yield, Compression Molded | 1090 psi | 7.50 MPa | ASTM D638 / ISO 527-2 |
| Mechanical Properties | Tensile Strength at Break, Compression Molded | 2610 psi | 18.0 MPa | ASTM D638 / ISO 527-2 |
| Mechanical Properties | Tensile Elongation at Break, Compression Molded | 590% | 590% | ASTM D638 / ISO 527-2 |
| Extrusion | Melt Temperature | 500–554°F | 260–290°C | — |
| Extrusion | Minimum Coating Weight, 554°F / 290°C | 4.9 lb/ream | 8.0 g/m² | SK Method |
| Extrusion | Neck-in, 554°F / 290°C | 1.8 in | 45.7 mm | SK Method |
Typical Extrusion Conditions
PRIMACOR 3003 can be processed under typical extrusion coating and extrusion lamination conditions. The recommended melt temperature range is 500–554°F, equivalent to 260–290°C. The resin provides good draw-down and edge stability, which helps maintain stable coating performance during extrusion coating processes.
The minimum coating weight is 4.9 lb/ream, equivalent to 8.0 g/m², under the listed test condition. Neck-in is 1.8 inches at 554°F / 290°C. Final processing conditions should be adjusted according to the equipment, substrate, line speed, coating weight and packaging structure.
Compliance and Additives
PRIMACOR 3003 complies with US FDA 21 CFR 177.1310(a)(1) and EU No 10/2011. Final suitability for food contact or packaging applications should be confirmed according to the customer’s final product structure, processing conditions and local regulatory requirements.
Additives information:
– Antiblock: No
– Slip: No
Product Summary
SK PRIMACOR 3003 is an EAA resin with 6.5% comonomer content and a melt index of 7.8 g/10min. It is designed for extrusion coating and extrusion lamination applications where adhesion, sealability, draw-down performance and edge stability are important.
This grade is especially suitable for flexible packaging laminates and liquid packaging board laminates. Compared with standard polyethylene, PRIMACOR 3003 can improve adhesion to paper, paperboard, metals and polyethylene substrates, while also providing good toughness, strength and environmental stress crack resistance.
FAQ
1. What is SK PRIMACOR 3003?
SK PRIMACOR 3003 is an EAA resin, also known as Ethylene Acrylic Acid Copolymer. It is designed as an adhesive or sealant layer for extrusion coating and extrusion lamination applications.
2. What is the acrylic acid content of PRIMACOR 3003?
The comonomer content of PRIMACOR 3003 is 6.5%, based on SK test method.
3. What is the melt index of PRIMACOR 3003?
The melt index is 7.8 g/10min under 190°C / 2.16 kg test conditions.
4. What is the density of PRIMACOR 3003?
The density of PRIMACOR 3003 is 0.935 g/cm³.
5. What is the melting temperature of PRIMACOR 3003?
The melting temperature is 100°C by DSC method.
6. What applications is PRIMACOR 3003 suitable for?
It is suitable for extrusion coating, extrusion lamination, flexible packaging laminates, liquid packaging board laminates, paper coating, aluminum foil lamination and multilayer packaging structures.
7. What substrates can PRIMACOR 3003 bond to?
PRIMACOR 3003 provides adhesion to paper, paperboard, metals and polyethylene substrates.
8. What are the key advantages of PRIMACOR 3003?
Its key advantages include excellent draw-down, edge stability, organoleptic properties, toughness, strength, hot-tack, sealability and environmental stress crack resistance.
9. Does PRIMACOR 3003 contain slip or antiblock additives?
No. According to the technical data, PRIMACOR 3003 does not contain slip or antiblock additives.
10. Can Shenzhen Ruiqing International Trade Co., Ltd. supply PRIMACOR 3003?
Shenzhen Ruiqing International Trade Co., Ltd. can provide PRIMACOR 3003 and other SK EAA series grades, including quotation, lead time, TDS, SDS, COA and bulk supply support.
