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VECTOR® 4111A

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:	ruW3WC_VECTOR-4111A.pdf
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VECTOR 4111A
Styrene-Isoprene-Styrene (SIS) Block Copolymer

SIS(1) triblock copolymer.

Contains < 1% diblock copolymer.

Low styrene, low 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 4111A is a linear, pure styrene-isoprene-styrene triblock copolymer produced via proprietary sequential anionic polymerization technology from Dexco Polymers LP, a Dow/ExxonMobil Venture. It is not formulated with the antioxidant TNPP (tris(nonylphenyl) phosphite).

It is the softest pure SIS triblock and is highly elastic. It is well-suited for use in elastomeric film compounds and in formulating adhesives.

General Information
Features	Block Copolymer Food Contact Acceptable Good Processability Good Thermal Stability High Elasticity Soft
Uses	Adhesives Compounding Film
Forms	Pellets
Processing Method	Compounding

Physical	Nominal Value	Unit	Test Method
Specific Gravity	0.928	g/cm³	ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)	1.2	g/10 min	ASTM D1238
Solution Viscosity	880	mPa·s	ASTM D2196
Ash Content	0.3	wt%	ASTM D1416
Styrene Content	18.0	wt%	Internal Method

Elastomers	Nominal Value	Unit	Test Method
Stress Relaxation ¹
Peak Force @ 200% strain (A) : 23°C, 889.0 µm	1.10	MPa
Peak Force @ 500% strain : 23°C, 889.0 µm	2.28	MPa
Ratio (A:B) : 23°C, 889.0 µm	2.60
Relaxation @ 200% strain : 23°C, 889.0 µm	6.0	%
Set after 500% strain : 23°C, 889.0 µm	16	%
Unload @ 50% strain (B) : 23°C, 889.0 µm	0.414	MPa

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)	39		ASTM D2240

Elastomers	Nominal Value	Unit	Test Method
Tensile Stress ²(300% Strain, 25°C)	1.65	MPa	ASTM D412
Tensile Strength ³(Yield, 25°C)	32.4	MPa	ASTM D412
Tensile Elongation ⁴(Break, 25°C)	1400	%	ASTM D412

Note Message
1 .	Described in US 7,445,831 patent. Tested on roll milled/compression molded plaques (0.035" thick). Tested in the transverse direction at room temperature.
2 .	25 Wt. % in toluene
3 .	25 Wt. % in toluene
4 .	25 Wt. % in toluene

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