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EMAC® SP2260 is a soft and elastic copolymer containing 24% ethylene methyl acrylate for low-temperature heat and radio frequency (RF) sealing in heat seal layers, tie layers, flexible packaging, and more. It also offers excellent impact modification and resistance to operational stress for PET compounds.
EMAC® SP2260 from Westlake is an ethylene methyl acrylate copolymer recommended for various applications, including heat seal layers, tie layers, flexible packaging, and blown and cast films. It easily adheres to various substrates and exhibits wide polymer compatibility with polyolefins, oriented polyolefins, ionomers, polyesters, PVC, and other polar polymers. It is noncorrosive, has high filler acceptance, and facilitates improved processability. Thus, it is typically processed via extrusion, molding, or blown or cast film equipment. With 24% ethylene methyl acrylate content, it has excellent flexibility and softness without containing plasticizers.
Methyl acrylate content, wt%: 24
Melt index, g/10 min: 2.1
Density, kg/m³ (g/cm³): 944 (0.944)
Vicat softening temperature, °C (°F): 43 (109)
Melting point, °C (°F): 76 (169)
Brittleness temperature, °C (°F): Less than −73 (Less than −99)
Durometer hardness Shore D scale: 37
Tensile stress at break, MPa (psi): 11 (1,615)
Elongation at break, %: 835
Primary Chemistry: Ethylene methyl acrylate block copolymer
24% ethylene methyl acrylate
Contains no plasticizer
Good polymer compatibility and adhesion
Fillable with high solids
Good softness
Low-temperature flexibility
Improves processing
Low-temperature heat and RF sealing
Noncorrosive
PET impact modifier
Incompatibility or adhesion to other polymers
Poor low-temperature resistance or flexibility of polymers
Low flexibility at low temperatures
Inadequate impact resistance of PET
Heat seal layers
Tie layers
PET compounding
Flexible packaging
Blown and cast films
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