| VECTOR® 4293A VECTOR 4293A Styrene-Isoprene (SI)n Block Copolymer Radial (SI)n (1) block copolymer. Contains ~25% 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 4293A 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 a high styrene, low viscosity product that can be formulated into hot melt adhesive systems having low viscosity, good heat resistance, and excellent specific adhesion to low energy surfaces such as polyolefins. Consequently, adhesive formulations based on VECTOR 4293A (SI)n are ideally suited for disposables applications as well as for specialty packaging and bookbinding end uses.&&VECTOR® 4293A Radial (SI)n block copolymer. Contains ~25% SI diblock copolymer. Medium styrene. VECTOR 4293A styrenic block copolymer is a radial block copolymer with a narrow molecular weight distribution. The radial structure provides adhesives with lower viscosity as well as higher modulus, cohesive strength, and heat resistance than comparable linear SIS/SI. It can be used as a base for hot melt adhesives with low viscosity, good heat resistance, and excellent adhesion to low energy surfaces. It is also well-suited for use in hygiene, specialty packaging and bookbinding applications. VECTOR 4293A (SI) n is offered as a dense pellet supplied from the United States.&& |
