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VECTOR® 7400

Category:	SBS , Styrene Butadiene Styrene Block Copolymer
Manufacturer:	Dexco Polymers LP
Trademark:	VECTOR®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	fGqFfM_VECTOR-7400.pdf
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VECTOR 7400
Styrene-Butadiene-Styrene (SBS) Block Copolymer

Oil extended SBS(1) block copolymer.

Contains <1% diblock copolymer and ~33% mineral oil.

Medium styrene, low viscosity, low modulus copolymer.

Outstanding thermal stability and melt processability.

Supplied as a porous pellet, dusted with talc.

VECTOR styrenic block copolymers find use under certain regulations as articles or as ingredients in articles intended for food contact or medical applications. Please contact your Dexco Polymers agent for a detailed letter of certification or further information.

VECTOR 7400 styrene-butadiene-styrene block copolymer is produced via proprietary sequential anionic polymerization technology from Dexco Polymers LP, a Dow/ExxonMobil Venture. It is formulated with the antioxidant TNPP (tris(nonylphenyl) phosphite).

It is the softest SBS triblock and is highly elastic. It has moderate physical strength and good melt processability. It is designed for use as an impact modifier in styrenics and in elastomeric film compounds.

General Information
Additive	Antioxidant
Features	Antioxidant Copolymer Food Contact Acceptable Good Processability Good Thermal Stability High Elasticity Low Viscosity Medium Strength Soft
Uses	Compounding Film Plastics Modification
Forms	Pellets
Processing Method	Compounding

Physical	Nominal Value	Unit	Test Method
Specific Gravity	0.900	g/cm³	ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)	1.8	g/10 min	ASTM D1238
Ash Content	0.6	wt%	ASTM D1416
Styrene Content ¹	31.0	wt%	Internal Method

Elastomers	Nominal Value	Unit	Test Method
Stress Relaxation ²
Peak Force @ 200% strain (A) : 889.0 µm	1.21	MPa
Peak Force @ 500% strain : 889.0 µm	4.07	MPa
Ratio (A:B) : 889.0 µm	2.40
Relaxation @ 200% strain : 889.0 µm	13	%
Set after 500% strain : 889.0 µm	13	%
Unload @ 50% strain (B) : 889.0 µm	0.517	MPa

Additional Information	Nominal Value	Unit	Test Method
Diblock Content	< 1.0	wt%	Internal Method
Mineral Oil Content	33.0	wt%	Internal Method
Volatiles	0.3	wt%	Internal Method

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A, 1 sec)	47		ASTM D2240

Elastomers	Nominal Value	Unit	Test Method
Tensile Stress - Across Flow (300% Strain, 0.889 mm)	3.10	MPa	ASTM D412
Tensile Strength - Across Flow (Yield, 0.889 mm)	19.3	MPa	ASTM D412
Tensile Elongation - Across Flow (Break, 0.889 mm)	1300	%	ASTM D412

Note Message
1 .	(polymer basis)
2 .	Described in US 7,445,831 patent. Tested on roll milled/compression molded plaques. Tested in the transverse direction at room temperature.

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