SIS is used in hot-melt pressure-sensitive adhesives. Considering the stability and service life of pressure-sensitive adhesive paper, the use of star-shaped elastomers can be considered, and a composite tackifier compatible with the two phases of the SIS molecular structure can be selected. , The resulting pressure-sensitive adhesive has the best aging resistance. Softeners are often used in hot-melt pressure-sensitive adhesives. When softeners with lower molecular weight are used, due to the presence of easy extraction in high temperature environments, the rapid viscosity of the product will decrease, and the higher molecular weight should be used. Materials, such as liquid NBR, polyester plasticizer, etc.