METHOD OF SEPARATING SUPERABSORBENT POLYMER PARTICLES FROM A SOLIDIFIED THERMOPLASTIC COMPOSITION COMPRISING POLYMERS
摘要
The present invention relates to a method for re-mobilizing superabsorbent polymer particles which have previously been immobilized by a solidified thermoplastic composition comprising at least 30 weight-% of a thermoplastic polymer. The superabsorbent polymer particles are separated from the solidified thermoplastic composition by using a supercritical fluid comprising carbon dioxide, propane or mixtures thereof. Separation may be further improved by the use of one or more co-solvents.
申请公布号
WO2011106392(A1)
申请公布日期
2011.09.01
申请号
WO2011US25882
申请日期
2011.02.23
申请人
THE PROCTER & GAMBLE COMPANY;LUCKERT, CARSTEN;MICHNACS, MARION;ZETZL, CARSTEN