Kristalex hydrocarbon resins

            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 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.