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公开(公告)号：US20180265597A1
公开(公告)日：2018-09-20
申请号：US15760920
申请日：2016-09-16
发明人： Ikue HOMMA , Takayuki SHIMAOKA
CPC分类号： C08B5/00 , C08B15/04 , C08J3/02 , C08J3/095 , C08J2301/16 , C08K5/05 , C08L1/02 , C08L1/16 , C08L2201/56 , C08L2205/16 , D21H11/18 , D21H11/20 , D21H15/02
摘要： An object of the invention is to provide a material comprising ultrafine cellulose fibers, having good dispersibility of fine particles in an aqueous medium containing ultrafine cellulose fibers. According to the invention, there is provided a material comprising ultrafine cellulose fibers, wherein the content of the ultrafine cellulose fibers is 80% by mass or more, and the haze value of a sample, which has been prepared by adding the material comprising ultrafine cellulose fibers to pure water to a solid concentration of 0.4% by mass, and stirring the mixture with a disperser under conditions of 1500 rpm and 5 minutes, is 20% or less.
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公开(公告)号：US20180258589A1
公开(公告)日：2018-09-13
申请号：US15976654
申请日：2018-05-10
发明人： Charles E. Miller
CPC分类号： D21H11/20 , B01J19/2405 , B01J2219/24 , C08J3/24 , C08J3/246 , C08J2301/02 , C08J2333/02 , C08J2433/02 , D21C9/00 , D21C9/001 , D21C9/002 , D21C9/005
摘要： Methods of forming crosslinked cellulose include mixing a crosslinking agent with an aqueous mixture of cellulose fibers containing little to no excess water (e.g., solids content of 25-55%), drying the resulting mixture to 85-100% solids, then curing the dried mixture to crosslink the cellulose fibers. Systems include a mixing unit to form, from an aqueous mixture of unbonded cellulose fibers having a solids content of about 25-55% and a crosslinking agent, a substantially homogenous mixture of non-crosslinked, unbonded cellulose fibers and crosslinking agent; a drying unit to dry the substantially homogenous mixture to a consistency of 85-100%; and a curing unit and to cure the crosslinking agent to form dried and cured crosslinked cellulose fibers. Intrafiber crosslinked cellulose pulp fibers produced by such methods and/or systems have a chemical on pulp level of about 2-14% and an AFAQ capacity of at least 12.0 g/g.
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公开(公告)号：US09989446B2
公开(公告)日：2018-06-05
申请号：US13985360
申请日：2012-02-27
申请人： Philip Robert Mallender , Douglas Mark Green , Sarah Janet Clegg , Barry Edmund Johnson , Jimmy Hedin Dahlstrom , Mattias Algotsson , Ronnie Palmgren
发明人： Philip Robert Mallender , Douglas Mark Green , Sarah Janet Clegg , Barry Edmund Johnson , Jimmy Hedin Dahlstrom , Mattias Algotsson , Ronnie Palmgren
摘要： The invention discloses a sample preservation method which comprises the following steps: a) providing a paper substrate comprising ligands, where the ligands comprise charged groups, b) applying a sample comprising at least one analyte and at least one contaminant on the paper substrate, c) drying the sample on the paper substrate and, d) extracting at least part of the paper substrate to provide a solution of the analyte.
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公开(公告)号：US20180142084A1
公开(公告)日：2018-05-24
申请号：US15577964
申请日：2016-06-01
发明人： Bernard CATHALA , Ana VILLARES , Jean-Guy BERRIN , Celine MOREAU
CPC分类号： C08L1/02 , B82Y40/00 , C08L1/04 , C12P19/04 , D21C5/005 , D21C9/007 , D21H11/04 , D21H11/06 , D21H11/18 , D21H11/20 , D21H17/05 , D21H25/005
摘要： Disclosed is a method for producing nanocelluloses from a cellulose substrate including cellulose fibers, the method including the following sequence of steps: a step of enzymatic treatment of the cellulose substrate, by bringing same into contact with at least one cleaving enzyme, then a step of mechanical treatment of the cellulose substrate subjected to the step of enzymatic treatment, in order to delaminate the cellulose fibres and obtain the nanocelluloses. The at least one cleaving enzyme is chosen from the enzymes belonging to the family of lytic polysaccharide monooxygenases (LPMOs) capable of achieving cleavage in the presence of an electron donor. Also disclosed are the nanocelluloses obtained according to the method.
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5.发明申请公开(公告)号：US20180141319A1
公开(公告)日：2018-05-24
申请号：US15574978
申请日：2016-05-19
申请人： INNVENTIA AB
CPC分类号： B32B29/005 , B32B2250/26 , B32B2262/02 , B32B2262/062 , B32B2262/067 , B32B2264/10 , B32B2272/00 , B32B2307/546 , B32B2307/72 , B32B2553/00 , B65D65/38 , D21H11/20 , D21H17/66 , D21H21/22 , D21H27/10 , D21H27/30
摘要： The present invention relates to a process for the production of a bulky multi-layer paperboard comprising a middle layer produced from a cured pulp product produced by a method comprising the steps of: i) providing a first aqueous pulp slurry comprising cellulosic fibres and having a pulp consistency of from 0.1% to 40% by weight, calculated as dry weight of the cellulosic fibres in the first pulp slurry; ii) adding to the first pulp slurry an aluminium metal salt comprising Al3+-ions to a total molar concentration of aluminium ions of from 0.0001 M to 0.5 M in the first pulp slurry; iii) adjusting the pH of the first pulp slurry to a pH of from pH 3.0 to pH 6.0; iv) dewatering and curing the first pulp slurry at a temperature of at least 60° C. and thus provide a cured pulp product.
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公开(公告)号：US09951470B2
公开(公告)日：2018-04-24
申请号：US14206744
申请日：2014-03-12
申请人： GP Cellulose GmbH
IPC分类号： B01J20/24 , C08B15/00 , C08B15/04 , D21C9/147 , D21C9/00 , D21H11/20 , D21C9/16 , D21C3/02 , D21C9/14
CPC分类号： D21C9/163 , B01J20/24 , C08B15/00 , C08B15/04 , D21C3/02 , D21C9/004 , D21C9/142 , D21C9/147 , D21H11/20 , Y10T428/298
摘要： A pulp fiber with an enhanced carboxyl content resulting in improved antimicrobial, anti-yellowing and absorptive properties is described. Methods for making the kraft pulp fiber and products made from it are also described.
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公开(公告)号：US09932461B2
公开(公告)日：2018-04-03
申请号：US14418853
申请日：2013-08-06
发明人： Go Banzashi , Hiroyuki Nagatani , Shino Iwai
CPC分类号： C08L1/02 , C08J3/02 , C08J2301/02 , D21H11/18 , D21H11/20
摘要： A microfibrous cellulose aggregate including microfibrous cellulose having an average fiber width of 2 nm to 50 nm and a liquid compound including at least one of water or an organic solvent. The content of the microfibrous cellulose is from 6 mass % to 80 mass % per the mass of the entire microfibrous cellulose aggregate, and the content of the liquid compound is at least 15 mass % per the mass of the entire microfibrous cellulose aggregate.
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公开(公告)号：US09926666B2
公开(公告)日：2018-03-27
申请号：US15423177
申请日：2017-02-02
申请人： GP Cellulose GmbH
CPC分类号： D21C9/163 , A61F13/53 , D21C9/002 , D21C9/1036 , D21C9/144 , D21H11/04 , D21H11/16 , D21H11/20 , Y10T428/298
摘要： A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step acidic, iron catalyzed peroxide treatment process that can be incorporated into a single stage of a multi-stage bleaching process. The products can be chemical cellulose feedstocks, microcrystalline cellulose feedstocks, fluff pulps and products made from them.
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公开(公告)号：US20170349671A1
公开(公告)日：2017-12-07
申请号：US15538082
申请日：2015-12-21
发明人： Isko KAJANTO
IPC分类号： C08B15/04 , D21H11/18 , D01F2/24 , A61K8/73 , A61K8/02 , A61K47/38 , A61K9/70 , D21H11/20 , A61Q19/00
CPC分类号： C08B15/04 , A61K8/027 , A61K8/731 , A61K9/70 , A61K47/38 , A61K2800/10 , A61Q19/00 , D01F2/24 , D21H11/18 , D21H11/20
摘要： A process for producing an oxidized nanofibrillar cellulose hydrogel is disclosed, wherein the process comprises oxidizing cellulose pulp fibers in the presence of hypochlorite as an oxidant and a heterocyclic nitroxyl radical as a catalyst; and disintegrating the oxidized cellulose pulp fibers to obtain a nanofibrillar cellulose hydrogel; wherein all steps of the process after oxidizing are performed under aseptic conditions. An oxidized nanofibrillar cellulose hydrogel and a system for producing the same are also disclosed.
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公开(公告)号：US09777432B2
公开(公告)日：2017-10-03
申请号：US14293773
申请日：2014-06-02
申请人： GP Cellulose GmbH
CPC分类号： D21C9/163 , A61F13/53 , D21C9/002 , D21C9/1036 , D21C9/144 , D21H11/04 , D21H11/16 , D21H11/20 , Y10T428/298
摘要： A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step acidic, iron catalyzed peroxide treatment process that can be incorporated into a single stage of a multi-stage bleaching process. The products can be chemical cellulose feedstocks, microcrystalline cellulose feedstocks, fluff pulps and products made from them.
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