Unitarity Bounds in the Vector Condensate Model of Electroweak Interactions

We replace the standard model scalar doublet by a doublet of vector fields and generate masses by dynamical symmetry breaking. Oblique radiative corrections are small if the new vector bosons ($B^+$, $B^0$) are heavy. In this note it is shown that the model has a low momentum scale and above $\Lambda \simeq 2$ TeV it does not respect the perturbative unitarity. From tree-graph unitarity the allowed region of $B ^+ (B^0)$ mass is estimated as $m_{B^+} \geq 369 \hbox{GeV} \quad (m_{B^0} \geq 410$ GeV) at $\Lambda= 1$ TeV.