Form-factor dependence of B$_c$ absorption cross sections by nucleons

The cross sections for B$_c$ absorption by nucleons are examined using a gauged SU5 hadronic Lagrangianin a meson-baryonic exchange model. Only the charm exchange processes are examined with the assumption that lighter exchange processes dominate. Results are obtained without and with monopole form-factors to account for the hadron structure. Results with form-factors tend towards a range of about 1 to 7 mb near threshold energies.