Marcus 200 Polyethylene 9002-88-4 Marcus Oil and Chemical Waxes & Paraffin >> Polyolefins Ethylene co-terpolymers - solid (EVA, EMA...) ADHESIVE >> Hot-melt ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) The MARCUS range of low molecular weight polyethylenes are all derived from high density polyethylene(HDPE) under specific and stringently controlled conditions. This enables a series of very linear and therefore very crystalline polymers to be tailored. Because the products are very crystalline, they are hard and also have high melting points ranging from 90°C (194°F) to 116°C(241°F). Hot Melt Adhesives These are predominantly blends of an EVA copolymer together with a tackifying resin and a hydrocarbon wax. The Marcus low molecular weight polyethelene homopolymers 200,300,500, and 4040 are ideally tailored in structure for use for hot melts due to their: Low molecular weight (Mn = 1100). High crystallinity (Approximately 70 - 75%). Narrow distribution (Mw / Mn = 1.2 - 1.5). Exceptionally low melt viscosity (10-60 mPas at 149°C). These features are essential for the high performance additive function they possess and are crucial in maintaining good compatibility in a diverse range of formulations. Their attributes may be summarized as: Reduction of blend viscosity. Shortening of setting time. Improved wettability. Greatly improved heat resistance. Diminished blocking tendency. It is suitable, in some instances, to incorporate a high performance MARCUS polyethylene as the sole wax component, or to completely supplant Fischer-Tropsch wax. However, a combination of paraffinic and microcrystalline waxes is the norm in order to meet specific application requirements. In this respect it is to be noted that the highly crystalline and high melting MARCUS polyethylenes have a far greater, more dramatic and positive influence than any of the other waxes upon: Reduction of setting time. Improvement of heat resistance. Low molecular weight, high cristallinity, very linear polyethylene homopolymer wax. Used in hot melt adhesives. Offers hardness, high melting point, narrow distribution, very good low melt viscosity and compatibility with EVA. Provides reduction of blend viscosity, shortening of setting time, improved wettability, greatly improved heat resistance and diminished blocking tendency.