  In this work, we present an updated study about the interactions of quarkonia
with surrounding hadronic medium. The meson-meson interactions are described
with a chiral effective Lagrangian within the framework of unitarized coupled
channel amplitudes. In particular, we extend a previous work performed in the
charmonium sector by calculating the cross-sections for $\Upsilon$ scattering
by light pseudoscalar mesons ($\pi, K, \eta$) and vector mesons ($\rho, K^\ast,
\omega$). We evaluate the relevant channels and compare the results with
existing literature. The analysis is completed by including the
finite-temperature effects in the unitarized scattering amplitudes for both
quarkonium and bottomonium sectors.
