<p>A method of preparing a polystyrene blend that includes combining a first polystyrene composition having a first melt flow index with a second polystyrene composition having a second melt flow index and forming a polystyrene blend, the second melt flow index being at least 2 dg/min higher that the first melt flow index. The polystyrene blend has an observed tensile strength value greater than 3% above the expected tensile strength value. The second polystyrene composition can include a recycled polystyrene material, which can include expanded polystyrene. An alternate method of preparing the polystyrene blend includes combining a polystyrene composition with a styrene monomer to form a reaction mixture, polymerizing the reaction mixture and obtaining a polystyrene blend, where the polystyrene containing composition has a melt flow index at least 2 dg/min higher than the melt flow index of the styrene monomer after it has been polymerized.</p>
申请公布号
EP2553017(A1)
申请公布日期
2013.02.06
申请号
EP20110763411
申请日期
2011.03.31
申请人
FINA TECHNOLOGY, INC.
发明人
GROSSETETE, CAMILLE;KNOEPPEL, DAVID, W.;SOSA, JOSE, M.;STEAGALL, SHANE;CORLETO, CARLOS