  The large parton flux at high energy gives rise to events where different
pairs of partons interact contemporarily with large momentum exchange. A main
effect of multiple parton interactions is to generate events with many jets at
relatively large transverse momenta. The large value of the heavy quarks
production cross section may however give also rise a sizable rate of events
with several $b$-quarks produced. We summarize the main features of multiparton
interactions and make some estimate of the inclusive cross section to produce
two $b{\bar b}$ pairs within the acceptance of the ALICE detector.
