Sub-Product

Polyolefin Elastomers have a density of 0.85 to 0.88-0.886 g/cm³ (depending on the source) and a melting temperature from 35 to approximately 80°C. They are mostly copolymers of Ethylene and 1-Butene since higher Linear Alpha-Olefins are required in too high molar concentration in the copolymer to lower the density below 0.88 g/cm³. According to the scientific literature, a POE with a density of 0.87 g/cm³ requires about 50 wt-% each of Ethylene and 1-Butene.

Figure 1 - Ethylene Copolymer Density in g/l vs. Comonomer Content in Weight-%

Source: Multiple scientific literature references.