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VECTOR® 4211

Category:	SIS , Styrene Isoprene Styrene Block Copolymer
Manufacturer:	Dexco Polymers LP
Trademark:	VECTOR®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	odGunr_VECTOR-4211.pdf
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VECTOR 4211
Styrene-Isoprene-Styrene (SIS) Block Copolymer

SIS(1) triblock copolymer.

Contains < 1% diblock copolymer.

Medium styrene, high modulus copolymer.

Outstanding thermal stability and melt processability.

Supplied as a dense 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 4211 is a styrene-isoprene-styrene triblock copolymer and 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 useful in applications requiring a combination of high modulus and high elasticity. It is also particularly suited for formulating adhesives for disposables that require high cohesive strength, low creep compliance, and low viscosity at low application temperatures.

General Information
Additive	Antioxidant
Features	Antioxidant Copolymer Food Contact Acceptable Good Creep Resistance Good Processability Good Thermal Stability High Elasticity High Strength Low (to None) Cadmium Content Low Temperature Strength Low Viscosity
Uses	Adhesives
Forms	Pellets

Physical	Nominal Value	Unit	Test Method
Specific Gravity	0.938	g/cm³	ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)	1.3	g/10 min	ASTM D1238
Solution Viscosity	300	mPa·s	ASTM D2196
Ash Content	0.2	wt%	ASTM D1416
Styrene Content	30.0	wt%	Internal Method

Additional Information	Nominal Value	Unit	Test Method
Diblock Content	< 1.0	wt%	Internal Method
Volatiles	0.2	wt%	Internal Method

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A, 1 sec)	62		ASTM D2240

Elastomers	Nominal Value	Unit	Test Method
Tensile Stress ¹(300% Strain, 25°C)	4.21	MPa	ASTM D412
Tensile Strength ²(Yield, 25°C)	26.2	MPa	ASTM D412
Tensile Elongation ³(Break, 25°C)	900	%	ASTM D412

Note Message
1 .	25 Wt. % in toluene
2 .	25 Wt. % in toluene
3 .	25 Wt. % in toluene

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