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VECTOR® 4186A

Category:	SI , Styrene Isoprene Branched Copolymer
Manufacturer:	Dexco Polymers LP
Trademark:	VECTOR®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	OMGQRw_VECTOR-4186A.pdf
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VECTOR 4186A
Styrene-Isoprene (SI)n Block Copolymer

Radial (SI)n(1) block copolymer.

High molecular weight copolymer.

Contains ~73% SI diblock copolymer.

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 4186A styrene-isoprene radial copolymer is produced via proprietary anionic polymerization technology from Dexco Polymers LP, a Dow/ExxonMobil Venture. It is not formulated with the antioxidant TNPP (tris(nonylphenyl) phosphite).

It is made with a patented coupling process that yields a polymer primarily with a 4-arm radial architecture. It is particularly suited for low-viscosity hot melt pressure sensitive adhesive systems having excellent adhesion to low energy surfaces, low migration characteristics, and enhanced die-cutting characteristics within label stock applications.

General Information
Features	Copolymer Food Contact Acceptable Good Adhesion High Molecular Weight Low Viscosity
Uses	Adhesives Labels
Forms	Pellets

Physical	Nominal Value	Unit	Test Method
Specific Gravity	0.928	g/cm³	ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)	2.3	g/10 min	ASTM D1238
Ash Content	0.6	wt%	ASTM D1416
Styrene Content	18.0	wt%	Internal Method

Additional Information	Nominal Value	Unit	Test Method
Diblock Content	73.0	wt%	Internal Method
Volatiles	0.3	wt%	Internal Method

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A, 1 sec)	46		ASTM D2240

Elastomers	Nominal Value	Unit	Test Method
Tensile Stress - Flow ¹(300% Strain)	0.689	MPa	ASTM D412
Tensile Strength - Flow ²(Yield)	2.76	MPa	ASTM D412
Tensile Elongation - Flow ³(Break)	1500	%	ASTM D412

Note Message
1 .	Tested on roll milled/compression molded plaques (0.035" thick). Tested in the machine direction.
2 .	Tested on roll milled/compression molded plaques (0.035" thick). Tested in the machine direction.
3 .	Tested on roll milled/compression molded plaques (0.035" thick). Tested in the machine direction.

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