JSR SIS5405 Styrene isoprene block copolymer JSR Styrene block copolymer (SBC) >> Styrene isoprene rubber, SIS ADHESIVE >> Hot-melt ADHESIVE >> Solvent based JSR TR/SIS are styrenic thermoplastic elastomers that resulted from both synthetic rubber and synthetic resin technologies which JSR Corporation developed over many years. JSR TR/SIS are block copolymers having polystyrene phases at both ends of the molecular chain and having polybutadiene or polyisoprene phase as intermediate portion. They exhibit excellent elasticity similar to cured rubber at room temperature, and can be easily processed by plastic molding machines at high temperature. JSR TR/SIS can be broadly utilized as a material to fill the niche market lying between synthetic rubber and synthetic resin such as resin modifier, adhesive, asphalt modifier, footwears, and various molded goods. TR : Styrene Butadiene Block Copolymer SIS : Styrene Isoprene Block Copolymer JSR TR/ SIS have excellent characteristics as base polymer for adhesives. (1) Since hot melt processing is possible, it excels from the standpoint of energy saving and high productivity. (2) Adhesives using JSR TR/SIS as the base polymer have excellent holding power at high temperature, and sealability with carton boxes. (3) Adhesives using JSR TR/SIS as the base polymer have excellent low temperature characteristics, and they excel in flexibility. (4) Solvent type adhesives using JSR TR/SIS as the base polymer, do not require large amount of solvent, and it is possible to decrease environmental problems. (5) The solution viscosity is low in comparison with natural rubber, and it dissolves easily in solvents of aromatic hydrocarbons and halogenated hydrocarbons. Styrenic thermoplastic elastomer that resulted from both synthetic rubber and synthetic resin technologies. Used as a base polymer for hot melt and solvent-based adhesives. Offers very good elasticity at room temperature. Provides very good holding power at high temperature, sealability with carton boxes, very good low temperature characteristics, very good flexibility and low viscosity.