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.

Physical Properties Comparison:

Chemical Type:

Aromatic pure monomer hydrocarbon resins

Applications:

Hot melt adhesives, sealants, coatings, rubber and plastic modification

Benefits:

Water-white initial color, excellent color stability, wide product range, compatibility with a wide range of alkyd resins, plastics, styrene-containing elastomers, waxes and high vinyl acetate content EVA, low volatile content (applies to LV grades only)

Typical Markets:

Nonwoven assembly, hot melt pressure sensitive adhesives, clear sealants, caulks, bookbinding, plastic film modification, tire additives