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1. 发明授权

US12000066B2 Cross-linked cellulosic fibers 有权
公开(公告)号：US12000066B2
公开(公告)日：2024-06-04
申请号：US16982824
申请日：2018-03-29
申请人： Kimberly-Clark Worldwide, Inc.
发明人： Michael Andrew Zawadzki , Stephen Michael Lindsay
IPC分类号： D01D5/38 , C08B15/10 , D01D5/22 , D06L4/13 , D21H11/18 , D21H11/20
CPC分类号： D01D5/38 , C08B15/10 , D01D5/22 , D06L4/13 , D21H11/18 , D21H11/20
摘要： Disclosed are processes for manufacturing cross-linked cellulosic fibers and tissue products comprising cross-linked cellulosic fibers, manufactured by reacting an oxidized polyol, in particular, an oxidized sugar having at least two aldehyde groups with a plurality of cellulosic fibers to yield treated fibers and heating the treated fibers at a temperature greater than about 140° C. to cure the treated fibers. In particular, said sugar is sucrose and the oxidising agent comprises hydrogen peroxide. The instant cross-linked fibers are manufactured without well-known cross-linking agents such as formaldehyde or polycarboxylic acids, and have good brightness and color and resist yellowing. Furthermore, the cross-linked cellulosic fibers are generally free from off odors and the instant cross-linked cellulosic fibers have enhanced properties, such as improved wet bulk, compared to uncross-linked fibers.

2. 发明公开

US20230383467A1 CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD 审中-公开
公开(公告)号：US20230383467A1
公开(公告)日：2023-11-30
申请号：US18054962
申请日：2022-11-14
申请人： INTERNATIONAL PAPER COMPANY
发明人： Mengkui Luo
IPC分类号： D21H11/04 , C08B15/10 , C08H8/00 , D21H13/04 , D21C9/00 , D21C9/10 , D21C9/147 , D21C9/18 , C08L97/02 , D21H11/14
CPC分类号： D21H11/04 , C08B15/10 , C08H8/00 , D21H13/04 , D21C9/005 , D21C9/1063 , D21C9/147 , D21C9/18 , C08L97/02 , D21H11/14 , C08L2312/00
摘要： Pulps in accordance with certain embodiments include crosslinked cellulose fibers and have high brightness, reactivity, and intrinsic viscosity, and therefore can be well suited for use as a precursor in the production of low-color, high-viscosity cellulose derivatives. A method in accordance with the present technology includes forming a pulp from a cellulosic feedstock, bleaching the pulp, crosslinking cellulose fibers within the pulp while the pulp has a high consistency, and drying the pulp. Crosslinking the cellulose fibers can include exposing the fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175. Another method in accordance with the present technology includes providing an aqueous suspension of pulp that includes chemical wood pulp fibers that were previously bleached and dried, crosslinking the fibers with such a glycidal ether crosslinker, and drying the pulp.

3. 发明申请

US20190218412A1 MODIFIED NANOCRYSTALINE CELLULOSE MATERIALS AND FORMULATIONS AND PRODUCTS MADE THEREFROM 审中-公开
公开(公告)号：US20190218412A1
公开(公告)日：2019-07-18
申请号：US16301542
申请日：2017-05-16
申请人： Yissum Research Development Company of the Hebrew , MELODEA LTD.
发明人： Tal BEN SHALOM , Oded SHOSEYOV , Shaul LAPIDOT , Clarite AZERRAF , Yuval NEVO
IPC分类号： C09D101/02 , C09D7/63 , C09D7/65
CPC分类号： C09D101/02 , B82Y30/00 , C08B15/10 , C08K5/07 , C08K5/092 , C08K5/20 , C08L5/14 , C08L29/04 , C09D7/63 , C09D7/65 , D21H11/18 , D21H11/20 , D21H19/34 , D21H19/52 , D21H21/18
摘要： Provided is a method for modifying at least one property of a solid film or coat including or consisting nanocrystalline cellulose (NCC).

4. 发明授权

US09926665B2 Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology 有权
公开(公告)号：US09926665B2
公开(公告)日：2018-03-27
申请号：US15067760
申请日：2016-03-11
申请人： INTERNATIONAL PAPER COMPANY
发明人： Mengkui Luo
IPC分类号： D21C9/00 , D21C9/18 , D21C9/147 , D21H13/04 , D21C9/10
CPC分类号： D21C9/005 , C08B15/10 , C08H8/00 , D21C9/1063 , D21C9/147 , D21C9/18 , D21H13/04
摘要： A pulp in accordance with a particular embodiment includes crosslinked cellulose fibers. The pulp can have high brightness, reactivity, and intrinsic viscosity. The pulp, therefore, can be well suited for use as a precursor in the production of low-color, high-viscosity cellulose derivatives. A method in accordance with a particular embodiment of the present technology includes forming a pulp from a cellulosic feedstock, bleaching the pulp, crosslinking cellulose fibers within the pulp while the pulp has a high consistency, and drying the pulp. The bleaching process can reduce a lignin content of the pulp to less than or equal to 0.09% by oven-dried weight of the crosslinked cellulose fibers. Crosslinking the cellulose fibers can include exposing the cellulose fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175.

5. 发明授权

US08945389B2 Method for substance separation using a cellulose hydrate membrane in size exclusion chromatography 有权
标题翻译：在尺寸排阻层析中使用纤维素水合物膜进行物质分离的方法
公开(公告)号：US08945389B2
公开(公告)日：2015-02-03
申请号：US12937899
申请日：2009-02-10
申请人： René Faber , Wolfgang Demmer
发明人： René Faber , Wolfgang Demmer
IPC分类号： B01D15/08 , B01D71/10 , B01D15/34 , B01D67/00 , B01D69/02 , B01J20/28 , C07K1/22 , C07K1/36 , C08B1/08 , C08B15/10 , B01D69/06
CPC分类号： B01D71/10 , B01D15/34 , B01D67/0093 , B01D69/02 , B01D2323/16 , B01D2323/30 , B01D2323/36 , B01D2325/02 , B01D2325/12 , B01D2325/14 , B01D2325/16 , B01J20/28033 , B01J20/28035 , B01J20/28078 , C07K1/22 , C07K1/36 , C08B1/08 , C08B15/10
摘要： There is proposed a separation method for mixtures of materials, using a cellulose hydrate membrane having a porous double structure which consists of micropores having a diameter in the range from >100 nm to 20 μm and ultrapores which have a diameter of
摘要翻译：提出了一种使用具有多孔双重结构的纤维素水合物膜的材料混合物的分离方法，该多孔双层结构由直径在> 100nm至20μm的微孔和直径<100nm的超孔组成，平均分子量Mw为2 000 000的蓝色葡聚糖是不可接近的，其中超孔体积的分数大于水可接触的整个孔体积的15％，其中在优选的实施方案中，磺酸配体结合到膜上。

6. 发明申请

US20140256831A1 HYDROGEL AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：水凝胶及其制造方法
公开(公告)号：US20140256831A1
公开(公告)日：2014-09-11
申请号：US14122305
申请日：2012-05-30
申请人： Taichi Ito , Yukimitsu Suzuki , Akira Takahashi , Atsushi Shimizu
发明人： Taichi Ito , Yukimitsu Suzuki , Akira Takahashi , Atsushi Shimizu
IPC分类号： A61K47/36
CPC分类号： A61K47/36 , A61L27/20 , A61L27/52 , A61L31/042 , A61L31/145 , C08B15/00 , C08B15/005 , C08B15/10 , C08B37/0021 , C08B37/003 , C08B37/0072 , C08J3/075 , C08J3/246 , C08J2305/02 , C08J2305/08 , C08L1/08 , C08L1/286 , C08L5/02 , C08L5/08 , C08L2205/02
摘要： A hydrogel is provided which is obtained by reacting an azide group and a cyclooctyne group in the absence of a catalyst, especially in the absence of a copper catalyst. The hydrogel has: (a) a first polymer moiety composed of hyaluronic acid, carboxymethyl dextran or the like; (b) a second polymer moiety composed of hyaluronic acid, carboxymethyl dextran or the like, said second polymer moiety being of a kind that is same as or different from the kind of the moiety (a) and is composed of a molecule different from the moiety (a); and (c) a triazole ring group or a derivative group thereof.
摘要翻译：提供了一种水凝胶，其通过在不存在催化剂的情况下使叠氮基和环辛炔基反应而获得，特别是在不存在铜催化剂的情况下。水凝胶具有：（a）由透明质酸，羧甲基葡聚糖等组成的第一聚合物部分; （b）由透明质酸，羧甲基葡聚糖等组成的第二聚合物部分，所述第二聚合物部分是与（a）部分的种类相同或不同的种类，并且由不同于部分（a）; 和（c）三唑环基或其衍生基。

7. 发明授权

US08816003B2 High plasticization-resistant cross-linked polymeric membranes for separations 有权
标题翻译：用于分离的高增塑抗性交联聚合物膜
公开(公告)号：US08816003B2
公开(公告)日：2014-08-26
申请号：US12145153
申请日：2008-06-24
申请人： Chunqing Liu , Stephen T. Wilson , David A. Lesch
发明人： Chunqing Liu , Stephen T. Wilson , David A. Lesch
IPC分类号： C08F12/22
CPC分类号： C08B15/10 , B01D53/228 , B01D67/0093 , B01D71/16 , B01D2323/30 , B01D2325/30 , C08G18/6484 , C08L71/02 , C08L81/06 , Y02P20/152
摘要： This invention involves a composition, a method of making, and an application of high plasticization-resistant chemically cross-linked polymeric membranes such as cross-linked cellulose acetate (CA) membrane. These cross-linked polymeric membranes with covalently interpolymer-chain-connected rigid networks showed no decrease in CO2/CH4 ideal selectivity under 690 kPa (100 psig) pure CO2 pressure and also no CO2 plasticization up to 3447 kPa (500 psig) pure CO2 pressure. By using the method of chemical cross-linking as described in this invention, the separation characteristics of the polymeric membranes can be decisively improved. These new cross-linked polymeric membranes can be used not only for gas separations such as CO2/CH4 and CO2/N2 separations, O2/N2 separation, olefin/paraffin separations (e.g. propylene/propane separation), iso/normal paraffins separations, but also for liquid separations such as pervaporation and desalination.
摘要翻译：本发明涉及一种组合物，制备方法，以及应用高耐增塑作用的化学交联聚合物膜，例如交联乙酸纤维素（CA）膜。这些具有共价互聚链连接的刚性网络的交联聚合物膜在690kPa（100psig）纯二氧化碳压力下没有显示CO 2 / CH 4理想选择性的降低，并且也没有CO2增塑达3447kPa（500psig）纯二氧化碳压力。通过使用如本发明所述的化学交联方法，可以确定地提高聚合物膜的分离特性。这些新的交联聚合物膜不仅可用于气体分离，如CO2 / CH4和CO2 / N2分离，O2 / N2分离，烯烃/石蜡分离（如丙烯/丙烷分离），异/正链烷烃分离，但还用于液体分离，例如渗透蒸发和脱盐。

8. 发明申请

US20140219953A1 ADHESIVE CELL TISSUE GELS 审中-公开
标题翻译：粘合细胞组织胶
公开(公告)号：US20140219953A1
公开(公告)日：2014-08-07
申请号：US14146260
申请日：2014-01-02
申请人： National Cheng Kung University
发明人： Lynn L.H. Huang
IPC分类号： A61K47/34 , A61K38/30 , A61K38/19 , A61K38/18
CPC分类号： A61K47/34 , A61K38/18 , A61K38/1808 , A61K38/1816 , A61K38/1825 , A61K38/1833 , A61K38/1841 , A61K38/185 , A61K38/1858 , A61K38/1866 , A61K38/1875 , A61K38/193 , A61K38/30 , A61L27/222 , A61L27/24 , A61L27/3834 , A61L27/44 , A61L27/52 , A61L27/54 , A61L2300/414 , A61L2300/64 , C08B11/02 , C08B11/12 , C08B15/005 , C08B15/10 , C08B37/003 , C08B37/0039 , C08B37/0042 , C08B37/0063 , C08B37/0069 , C08B37/0072 , C08B37/0075 , C08B37/0084 , C08H1/00 , C08H1/06 , C08L77/04 , C12N5/0068 , C12N2537/10 , C08L89/06 , C08L5/08
摘要： Described herein is a cell tissue gel cross-linked with a cross-linking agent, and a quenching agent bound to a reactive group of the cross-linking agent.
摘要翻译：本文描述的是与交联剂交联的细胞组织凝胶和与交联剂的反应性基团结合的猝灭剂。

9. 发明申请

US20140114058A1 CROSS-LINKED POLYSACCHARIDE DERIVATIVES 审中-公开
标题翻译：交联多糖衍生物
公开(公告)号：US20140114058A1
公开(公告)日：2014-04-24
申请号：US14136900
申请日：2013-12-20
申请人： Eric FRANCOTTE , Tong ZHANG
发明人： Eric FRANCOTTE , Tong ZHANG
IPC分类号： C08B15/10
CPC分类号： C08B15/10 , B01J20/29 , B01J20/3204 , B01J20/3214 , B01J20/3274 , B01J20/3282 , C08B3/10 , C08B15/06 , C08B33/00
摘要： The invention relates to substantially photochemically or thermally cross-linked polysaccharide derivatives in which the OH groups as OR groups have been esterified or converted into carbamate (urethane) or mixtures thereof and that do not contain photopolymerisable functional groups prior to the cross-linking. They can be used as carrier materials for the chromatographic separation of enantiomers.
摘要翻译：本发明涉及基本上光化学或热交联的多糖衍生物，其中作为OR基团的OH基已被酯化或转化为氨基甲酸酯（氨基甲酸酯）或其混合物，并且在交联之前不含有可光聚合官能团。它们可用作色谱分离对映异构体的载体材料。

10. 发明授权

US08568564B2 Sheet-formed fibrous material with improved strength property 有权
标题翻译：具有改善的强度性能的片状纤维材料
公开(公告)号：US08568564B2
公开(公告)日：2013-10-29
申请号：US12936032
申请日：2009-04-02
申请人： Armando Córdova , Jonas Fredrik Hafrén , Karl Enquist , Joseph Samec
发明人： Armando Córdova , Jonas Fredrik Hafrén , Karl Enquist , Joseph Samec
IPC分类号： D21H11/00
CPC分类号： C08B15/10 , C08B37/0045 , C08L1/02 , C08L2666/26
摘要： A method of improving a strength property of a sheet-formed fibrous material formed from an aqueous slurry of cellulose fiber, including coating at least one face of the material with a coating formulation including a polysaccharide containing at least two carboxylic groups and low molecular weight organic mono-, di- or poly-carboxylic acid in an aqueous carrier, keeping the coated face at a temperature of 50° C. or more for a time sufficient to obtain the desired improvement including drying of the material.
摘要翻译：一种提高由纤维素纤维的水性浆料形成的片状纤维材料的强度特性的方法，包括用包含至少两个羧基的多糖和低分子量有机物的涂层制剂涂覆该材料的至少一个面在水性载体中的单 - ，二 - 或多 - 羧酸，将涂覆的面保持在50℃或更高的温度足以获得所需改进的时间，包括干燥材料。

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