VECTOR® styrenic block copolymers (SBC's) are a growing family of thermoplastic elastomers and flexible thermoplastic resins manufactured by Dexco Polymers LP. Dexco has developed proprietary polymer synthesis technology that provides unprecedented control of block copolymer composition and properties. Dexco Polymers LP offers very stable, narrow molecular weight styrenic block copolymers produced sequentially in an anionic polymerization process. These pure (virtually 100%) triblock copolymers contain no residual diblock and have excellent elastic properties. Dexco Polymers LP VECTOR SBC’s are ideally suited for use in extrusion compounding. The thermal and mechanical properties of pure SBC triblocks confirm that they have the highest level of elasticity relative to SBC’s diluted with diblock components. The higher level of elasticity gives lower set and relaxation properties and also gives higher recovered energy in hysteresis tests. In addition, Dexco Polymers LP linear styrenic block copolymers are of the highest quality and consistency, and thus exhibit outstanding thermal stability in heat aging tests. Dexco Polymers' high styrene SBS and SIS block copolymers, such as VECTOR 4411 and VECTOR 6241, can be extruded directly out of the bag. All other VECTOR styrenic block copolymer products are typically blended with thermoplastics and other ingredients for use in blown and cast extrusion processes. They blend readily with polyolefins such as low density polyethylene, ethylene vinyl acetates resins, and styrenic polymers such as crystal and high impact polystyrene. They can accept common oils, fillers, process aids, antiblock agents and colorants. For specific recommendations, consult a Dexco Polymers LP technical representative. Dexco Polymers' offers pure linear SIS (styrene-isoprene-styrene) triblocks, pure linear SIS/SI triblock/diblock blends, pure linear SBS (styrene-butadiene-styrene) triblocks, oil extended linear SBS triblocks and radial styrene-butadiene (SB)n and (SI)n products. For more information about this application, contact: Bill Grigar |