公开(公告)号：US11118103B2

公开(公告)日：2021-09-14

申请号：US15519229

申请日：2015-10-13

申请人： Oji Holdings Corporation

发明人： Ikue Homma ,  Takayuki Shimaoka ,  Moe Mizukami ,  Takuri Ozaki ,  Yuichi Noguchi ,  Mitsuru Tsunoda

IPC分类号： D01F2/24 ,  D01F2/00 ,  E21B43/28 ,  C09K8/60 ,  C09K3/00 ,  D21H11/20 ,  C08L5/00 ,  C09K8/90 ,  C09K8/467 ,  C08L1/02 ,  C09K8/575 ,  C09K8/72 ,  C09K8/516 ,  C09K8/40 ,  C09K8/68 ,  C04B40/00 ,  C09K8/035 ,  C04B28/02 ,  C09K8/508 ,  C09K8/514 ,  C09K8/88 ,  C09K8/10 ,  C08K3/24

摘要： An object of the present invention is to provide a salt water thickener that uniformly (favorably) disperses ultrafine cellulose fibers even in a liquid containing a salt (electrolyte). The salt water thickener comprises ultrafine cellulose fibers and a water-soluble polymer and can thereby uniformly disperse the ultrafine cellulose fibers even in a liquid containing a salt. The salt water thickener of the present invention is uniformly dispersed even in a liquid containing a salt and therefore exerts a high viscosity. The salt water thickener of the present invention can also be used as an additive for a fluid. The salt water thickener of the present invention can be used for purposes, for example, subterranean formation processing.

公开(公告)号：US10676869B2

公开(公告)日：2020-06-09

申请号：US15760853

申请日：2016-09-14

申请人： OJI HOLDINGS CORPORATION

发明人： Takayuki Shimaoka ,  Ikue Homma ,  Moe Mizukami ,  Takuri Ozaki

IPC分类号： D21H11/20 ,  C08J3/20 ,  C08L1/16 ,  C08L1/04 ,  C08B15/04 ,  C08L1/02 ,  C08B5/00 ,  D21H17/67 ,  D21H17/68 ,  C08K3/36

摘要： An object of the invention is to provide a material or composition comprising ultrafine cellulose fibers having excellent fluidity. The invention relates to a composition comprising a particulate material comprising ultrafine cellulose fibers and water, and (B) a non-cellulose particulate material in which the water content of the composition is 2 to 94% by mass with respect to the total mass of the composition, and the content of (B) the non-cellulose particulate material is 0.1 to 12% by mass with respect to the total mass of the composition. The invention also relates to a method for producing the composition and a method for producing a material comprising ultrafine cellulose fibers.