Polymeric additives may be used to raise the melting point, increase the mechanical strength, and lower the water vapor transmission of petroluem wax formulations.
Of the polymeric additives that were tested, the best material is the polyethylene wax. With the polyethylene wax, the concentration curves for the variation in melting point and penetration of the wax formulations are steeper, and the viscosity curves flatter, than those for the formulations containing the other polymeric additives.
These polymeric additives give significant reductions in water vapor transmission of the blends at relatively low polymer contents (1–2%).
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M. Erchak, in: Polyethylene and Other Polyolefins [Russian translation], Mir, Moscow (1964).
W. Schoch, Beschichtete Papier und Pappen; Herstellung, Eigenschaften, und Verarbetung [Application of Coatings to Paper and Paperboard], Sändiz, Wiesbaden (1957).
Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 7–10, January, 1976.
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Bogdanov, N.F., Parfenova, L.A. Influence of polymeric additives on petroleum wax properties. Chem Technol Fuels Oils 12, 10–13 (1976). https://doi.org/10.1007/BF00719037
- Melting Point