公开(公告)号：US20200263358A1

公开(公告)日：2020-08-20

申请号：US16605355

申请日：2018-04-20

申请人： FIBERLEAN TECHNOLOGIES LIMITED

发明人： Mark WINDEBANK ,  David SKUSE ,  Tafadzwa MOTSI ,  Guillaume TELLIER

IPC分类号： D21H11/18 ,  D21H19/52 ,  D21H19/40 ,  D21H19/38 ,  D21C9/00 ,  D21H17/69

摘要： Methods of re-dispersing and de-agglomerating dewatered, partially dried and dried compositions of microfibrillated cellulose and compositions of microfibrillated cellulose and inorganic particulate material, into liquid compositions comprising same, by applying ultrasonic energy to such liquid compositions of dewatered, partially dried and dried compositions of microfibrillated cellulose, or compositions of microfibrillated cellulose and inorganic particulate material. Methods for preparing an aqueous suspension comprising microfibrillated cellulose and, optionally, inorganic particulate material, with enhanced viscosity and tensile strength properties, suitable for use in methods of making paper or coating paper, and to filled and coated papers made from such aqueous suspensions.