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Kraton® G1657 M (SEBS) Linear Block Copolymer

Category Polymer , Thermoplastic , Elastomer, TPE
Manufacturer Kraton
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Description: Kraton G1657 M is a clear, linear triblock copolymer based on styrene and ethylene/butylene with a polystyrene content of 13% . It is supplied from North America in the physical form identified: Kraton G1657 MS - supplied as a dusted pelletKraton G1657 MO - supplied as a dusted pelletRegion: Asia Pacific, Europe, Japan, North America, and South America Uses: Kraton G1657 M is used as a modifier of bitumen or thermoplastics and in compound formulations. It may also find use as an ingredient in formulating adhesives, sealants and coatings.Applications: Adhesives, Sealant and Coatings; Compounding and Personal Hygiene; Impact Modification; Medical; Packaging and Polymod; and Personal Care
Physical Properties Metric English Comments
Specific Gravity 0.900 g/cc
0.900 g/cc
ASTM D4025
Volatiles <= 1.0 %
<= 1.0 %
KM 04
Brookfield Viscosity 1200 - 1800 cP

@Temperature 25.0 °C
1200 - 1800 cP

@Temperature 77.0 °F
20% Toluene solution; BAM 922
Melt Flow 22 g/10 min

@Load 5.00 kg,
Temperature 230 °C
22 g/10 min

@Load 11.0 lb,
Temperature 446 °F
Ash 0.020 - 0.12 %
0.020 - 0.12 %
For G1657 MS, Silica dusted; BAM 908
Mechanical Properties Metric English Comments
Hardness, Shore A 47
47
10 seconds. Typical values on polymer compression molded at 150°C (300°F).; ASTM D2240
Tensile Strength, Ultimate 23.44 MPa
3400 psi
Typical properties based on film cast from toluene solution.; ASTM D412
Elongation at Break 750 %
750 %
Typical properties based on film cast from toluene solution.; ASTM D412
300% Modulus 0.00241 GPa
0.350 ksi
Typical properties based on film cast from toluene solution.; ASTM D412
Chemical Properties Metric English Comments
Diblock Content 30 %
30 %
Descriptive Properties Value Comments
Content Dust, O
0.45-0.75%, KM 1029
Non-staining phenolic antioxidant
0.03-0.10%, KM 08
Polystyrene
12.3-14.3%, KM 03, Measured on the polymer before hydrogenation
Total Extractables
<1.5%, KM 05
Styrene/Rubber Ratio 13/87
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