Overview

Kristalex™ hydrocarbon resins are made from a mixture of purified styrenic monomers. Varying the proportions of the monomers and the molecular weight of the polymer results in a diverse range of products. A major application of Kristalex™ resins is the modification of the end-blocks of styrenic block copolymers. The grades of Kristalex™ resins with low softening points will tend to soften and contribute to the tack of block copolymer formulations while the higher softening point grades tend to strengthen the end-blocks and increase cohesion and high temperature resistance. Kristalex™ hydrocarbon resins are made from pure monomers so they are water-white in color and extremely stable against thermal and oxidative degradation. In addition, their aromatic nature makes them extremely compatible with polymers that contain styrene. Kristalex™ LV grades have very low organic content. Kristalex™ resins are also used in EVA packaging adhesives to provide specific adhesion properties. Other uses for Kristalex™ resins include coatings, clear sealants, laminating adhesives, textile dry sizes, and plastic modification.