text: price of propylene? anyone knows the price of propylene? or not able to be sold- how to make propylene? u.s. value of propylene in use, 2000 (cents per pound)                        derivative price   value of propylene  polypropylene domestic            36.0    28.0  polypropylene export              28.3    20.4  acrylonitrile domestic            36.5    28.8  acrylonitrile export              30.0    22.9  cumene domestic                   23.0    29.7  2-eh export                       25.5    20.2  polymer grade price                       24.2  chemical grade price                      22.7