We have previously presented an associated lattice fluid equation of state (ALF EOS) and shown that the equation is able to predict the solubility of CO2 in polymers and, simultaneously, the extent of swelling of the polymer due to CO2 using a single parameter obtained from one solubility isotherm. In the present study, we show that cloud point curves in CO2 + polymer systems (at higher pressures) may also be predicted using the same value of the parameter. In addition, we show that the single parameter does not depend on temperature, pressure, or polymer molecular weight.