Compounding technology for Polyisobutylene (PIB) as gumbase for chewing gum

Polyisobutylene (PIB) belongs to the olefin polymer family. It has been produced industrially since the 1930’s and is available in wide-ranging viscosities from oily to rubbery. The properties depend strongly on the mean molar mass. In addition to the technical applications described on the respective page, PIB is often used as an elastomeric formulation in the basic mass of chewing gum, the so-called gumbase. In contrast to the natural rubbers originally used, the individual requirement profiles of the variety, brand and manufacturer-specific characteristics can be very well met with the wide range of different PIB variants together with other recipe ingredients.

The potential of continuous processing of gumbase production was first recognized in the early 1980s, and has been increasingly used ever since. Among the main reasons are consistent, reproducible and uniform product quality, short residence times, careful handling of sensitive recipe components, precise and fully automated process control, reduced labour costs, low specific energies with resultant energy savings, and last but not least, the ability to reliably and mathematically model scale-up processes. BUSS compounding technology in the gumebase area is designed to meet these requirements.