公开(公告)号：US20170226399A1

公开(公告)日：2017-08-10

申请号：US15322382

申请日：2015-06-29

Applicant: Oji Holdings Corporation

Inventor： Takayuki SHIMAOKA ,  Yuichi NOGUCHI ,  Ikue HOMMA ,  Mitsuru TSUNODA

IPC: C09K8/10 ,  C09K8/68 ,  C09K8/90 ,  E21B43/26 ,  C09K8/575 ,  C09K8/42 ,  E21B21/00 ,  C09K8/40 ,  C09K8/72

CPC classification number: C09K8/10 ,  C04B18/24 ,  C08B5/00 ,  C08B11/12 ,  C08L1/16 ,  C08L1/286 ,  C09K8/035 ,  C09K8/40 ,  C09K8/42 ,  C09K8/424 ,  C09K8/467 ,  C09K8/514 ,  C09K8/516 ,  C09K8/528 ,  C09K8/536 ,  C09K8/5758 ,  C09K8/68 ,  C09K8/70 ,  C09K8/725 ,  C09K8/74 ,  C09K8/90 ,  C09K8/92 ,  C09K2208/08 ,  C09K2208/10 ,  C09K2208/12 ,  C09K2208/28 ,  C09K2208/32 ,  E21B21/00 ,  E21B33/14 ,  E21B43/26 ,  Y02W30/97

Abstract: An object is to provide a dispersion of ultrafine cellulose fibers having a high thickening effect and a gelling function. There is provided a subterranean formation processing composition comprising ultrafine cellulose fibers, which has a haze value of 1.0% to 50%, when the composition is suspended in water such that the solid concentration of cellulose fibers is 0.2% by mass. The composition of the present invention can be used as an additive to the fluid at the time of the processing of subterranean formation, especially the processing of the well. The present invention provides also various fluids which are used in well processing. The present invention provides a method for processing a subterranean formation, for example, drilling of an exploratory well or a wildcat, an appraisal well, an exploratory well or an exploration well, a delineation well, a development well, a production well, an injection well, an observation well, and a service well; cementing; fracturing; and a method for producing petroleum resources.

公开(公告)号：US20170183820A1

公开(公告)日：2017-06-29

申请号：US15313804

申请日：2015-05-19

Applicant: OJI HOLDINGS CORPORATION

Inventor： Go BANZASHI ,  Shino IWAI ,  Yuichi NOGUCHI ,  Hayato FUSHIMI

IPC: D21H11/20 ,  D21H11/04 ,  D21H13/30 ,  B32B37/14 ,  B32B5/02

CPC classification number: D21H11/20 ,  B32B5/02 ,  B32B5/28 ,  B32B37/14 ,  B32B2309/105 ,  B32B2457/20 ,  D21C9/002 ,  D21C9/007 ,  D21H11/04 ,  D21H11/18 ,  D21H13/30 ,  G02F1/1333 ,  G09F9/00 ,  G09F9/30 ,  H01L51/50 ,  H05B33/02

Abstract: An object of the present invention is to provide a method for producing an ultrafine fiber-containing sheet with suppressed yellowing. Another object of the present invention is to provide an efficient method for eliminating an introduced substituent, and a composite sheet comprising an organic layer and/or an inorganic layer laminated on the obtained sheet. The present invention provides a method for producing an ultrafine fiber-containing sheet, comprising (a) introducing a substituent having electrostatic and/or steric functionality to a fiber raw material to obtain substituent-introduced fiber; (b) machine-processing the substituent-introduced fiber obtained in the step (a) to obtain substituent-introduced ultrafine fiber; (c) preparing a sheet from the substituent-introduced ultrafine fiber obtained in the step (b); and (d) eliminating at least a portion of introduced substituents from the sheet obtained in the step (c). In a preferred aspect, the substituent having electrostatic and/or steric functionality is a phosphoric acid-derived group, and the method may further comprise, after the step (a) and before the step (c), the step of (e) changing the degree of neutralization of the substituent-introduced fiber or the substituent-introduced ultrafine fiber.

公开(公告)号：US20160032086A1

公开(公告)日：2016-02-04

申请号：US14773773

申请日：2014-03-14

Applicant: BRIDGESTONE CORPORATION ,  MITSUBISHI CHEMICAL CORPORATION ,  OJI HOLDINGS CORPORATION

Inventor： Saaya TAKAOKA ,  Hideko AKAI ,  Rie SHIRAHAMA ,  Yasutomo NOISHIKI ,  Yuichi NOGUCHI

IPC: C08L7/00

CPC classification number: C08L7/00 ,  B60C1/00 ,  B60C2011/145 ,  C08J3/2053 ,  C08J2300/26 ,  C08K9/04 ,  C08L1/26 ,  C08L7/02 ,  C08L21/00 ,  C08L2205/16

Abstract: Provided are a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a method for manufacturing the same, a vulcanized rubber, and a tire. A rubber composition comprising a rubber component and short fibers, wherein the short fibers are cationized. A method for manufacturing the rubber composition, comprising a mixing step for mixing cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition.

Abstract translation: 提供了当将纤维添加到橡胶中时，通过提高纤维在橡胶组分中的分散性，其制备方法，硫化橡胶和轮胎，提供了优异的增强性能的橡胶组合物。 一种橡胶组合物，其包含橡胶组分和短纤维，其中所述短纤维是阳离子化的。 一种制造橡胶组合物的方法，包括将阳离子化短纤维和橡胶胶乳混合以制备橡胶短纤维混合溶液的混合步骤以及用于干燥橡胶短纤维混合溶液以产生橡胶组合物的干燥步骤。

公开(公告)号：US20220074143A1

公开(公告)日：2022-03-10

申请号：US17418561

申请日：2019-12-25

Applicant: OJI HOLDINGS CORPORATION

Inventor： Yuichi NOGUCHI ,  Mengchen ZHAO ,  Yusuke TODOROKI

IPC: D21H11/04 ,  C08B5/00 ,  D21H11/18 ,  C08L1/16 ,  D01F2/28

Abstract: The present invention is intended to provide ultrafine cellulose fibers capable of enhancing the transparency of an ultrafine cellulose fiber-dispersed solution having phosphorous acid groups. The present invention relates to a method for producing cellulose fibers, comprising: mixing a compound having a phosphorous acid group and/or a salt thereof and urea and/or a urea derivative into a cellulose raw material to obtain a phosphorous acid esterified cellulose raw material, and performing a fibrillation treatment on the phosphorous acid esterified cellulose raw material to obtain cellulose fibers having a fiber width of 1000 nm or less and having a phosphorous acid group, wherein, in obtaining the phosphorous acid esterified cellulose raw material, the decomposition percentage of the urea and/or the urea derivative is set to be 90% or less.

公开(公告)号：US20210284755A1

公开(公告)日：2021-09-16

申请号：US17333791

申请日：2021-05-28

Applicant: OJI HOLDINGS CORPORATION

Inventor： Yuichi NOGUCHI ,  Yasutomo NOISHIKI ,  Ikue HOMMA

IPC: C08B5/00 ,  D21H13/06 ,  D01F2/24 ,  D21H17/10

Abstract: Objects of the present invention are to provide a phosphoric acid-esterified fine cellulose fiber of which slurry shows superior transparency, and to provide a method for producing a phosphorylated fine cellulose fiber showing superior transparency with good efficiency and high yield. According to the present invention, there is provided a phosphoric acid-esterified fine cellulose fiber, of which 0.2 mass % aqueous dispersion shows a solution haze of 15% or lower.

公开(公告)号：US20210253744A1

公开(公告)日：2021-08-19

申请号：US17274004

申请日：2019-09-05

Applicant: OJI HOLDINGS CORPORATION

Inventor： Yuichi NOGUCHI ,  Mengchen ZHAO ,  Yusuke TODOROKI

IPC: C08B15/06 ,  D21H11/20 ,  D21H17/35 ,  C08B5/00 ,  B01J20/24 ,  B01J20/26 ,  B01J20/28

Abstract: It is an object of the present invention to provide a fluffed cellulose having totally new properties that have not conventionally existed, and a cellulose fiber-containing material capable of realizing the same. The present invention relates to a cellulose fiber-containing material comprising cellulose fibers having anionic groups, wherein the yield of the cellulose fiber-containing material measured by the following measurement method is 50% by mass or more, the cellulose fiber-containing material has organic onium ions as counterions of the anionic groups, and the organic onium ions satisfy a predetermined condition.

公开(公告)号：US20200002883A1

公开(公告)日：2020-01-02

申请号：US16489917

申请日：2018-03-01

Applicant: OJI HOLDINGS CORPORATION

Inventor： Mengchen ZHAO ,  Yusuke TODOROKI ,  Yuichi NOGUCHI ,  Ikue SUGIYAMA

IPC: D06M11/71 ,  D21H11/20 ,  C08L1/08

Abstract: It is an object of the present invention to provide ultrafine cellulose fibers capable of exhibiting favorable dispersibility even in an organic solvent. The present invention relates to cellulose fibers having a fiber width of 1000 nm or less and having phosphoric acid groups or phosphoric acid group-derived substituents, wherein the content of the phosphoric acid groups or phosphoric acid group-derived substituents is 0.5 mmol/g or more, and the supernatant yield measured by an measurement method (a) is 70% or less.

公开(公告)号：US20190127915A1

公开(公告)日：2019-05-02

申请号：US16089792

申请日：2017-03-30

Applicant: OJI HOLDINGS CORPORATION

Inventor： Yuichi NOGUCHI ,  Ikue HOMMA ,  Yusuke MATSUBARA

IPC: D21H11/18 ,  C08B5/00 ,  D21H11/04

Abstract: It is an object of the present invention to provide a method for producing ultrafine fibrous cellulose, which is capable of efficiently obtaining ultrafine fibrous cellulose having phosphoric acid groups with a high yield. The present invention relates to a method for producing fibrous cellulose having a fiber width of 1000 nm or less, comprising: a (A) of introducing phosphoric acid groups into cellulose fibers to form crosslinked structures via the phosphoric acid groups, thereby obtaining crosslinked phosphorylated cellulose fibers, a (B) of breaking some or all of the crosslinked structures to obtain crosslink-broken phosphorylated cellulose fibers, and a (C) of performing a mechanical treatment on the crosslink-broken phosphorylated cellulose fibers to obtain fibrous cellulose having a fiber width of 1000 nm or less, wherein, in the (A), crosslinked structures in an amount of 0.05 mmol/g or more and 2.0 mmol/g or less are formed, and the (B) is a step of performing the hydrolysis of the crosslinked structures in an aqueous solvent with pH 3 or more.