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21. 发明授权

US09322133B2 Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom 有权
公开(公告)号：US09322133B2
公开(公告)日：2016-04-26
申请号：US14092910
申请日：2013-11-27
申请人： API Intellectual Property Holdings, LLC
发明人： Kimberly Nelson , Theodora Retsina , Vesa Pylkkanen , Ryan O'Connor
IPC分类号： D21C5/00 , D21H11/18 , C08B15/08 , C08L1/02 , C08B37/00 , C08H8/00 , D21C3/04 , D21C9/00 , D21C11/00 , C07G1/00 , C08B15/00 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C13K1/02 , D21C3/06
CPC分类号： C08B15/08 , C07G1/00 , C08B15/00 , C08B15/02 , C08B37/0057 , C08H8/00 , C08L1/02 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C12P2201/00 , C12P2203/00 , C13K1/02 , D21C3/04 , D21C3/06 , D21C3/20 , D21C5/00 , D21C5/005 , D21C9/002 , D21C9/007 , D21C9/10 , D21C11/0007 , D21H11/18 , Y02E50/16 , Y02P40/44
摘要： Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

22. 发明授权

US09297111B1 Methods for the manufacture of cellulose nanocrystals 有权
标题翻译：纤维素纳米晶体的制造方法
公开(公告)号：US09297111B1
公开(公告)日：2016-03-29
申请号：US14208759
申请日：2014-03-13
申请人： Domtar Corporation
发明人： Bruno Marcoccia , Michael Edwards , Marvin Duncan Cooper
IPC分类号： D21C9/00 , C01B17/82 , C08B15/08 , D21C5/00 , C13K1/04 , C01B17/90
CPC分类号： D21C9/004 , C01B17/903 , C08B15/08 , C13K1/04 , D21C5/00 , D21C9/04 , D21H11/18
摘要： Embodiments of the present invention relates generally to methods and systems for the manufacture of cellulose nanocrystals. In one embodiment, a method for manufacturing cellulose nanocrystals comprises reacting lignocellulosic fibers with sulfuric acid in water, introducing a water-insoluble solvent to substantially terminate the reaction, separating a first stream comprising at least 70% of the unreacted sulfuric acid in the water-insoluble solvent from a second stream comprising a plurality of cellulose nanocrystals and the remainder of the unreacted sulfuric acid in water, and separating the cellulose nanocrystals from the second stream.
摘要翻译：本发明的实施方案一般涉及用于制造纤维素纳米晶体的方法和系统。在一个实施方案中，制备纤维素纳米晶体的方法包括使木质纤维素纤维与硫酸在水中反应，引入水不溶性溶剂以基本上终止反应，将含有至少70％的未反应的硫酸的第一物流在水 - 来自包含多个纤维素纳米晶体的第二流的不溶性溶剂和在水中的其余未反应的硫酸，并将纤维素纳米晶体与第二流分离。

23. 发明授权

US09187571B2 Nano-deaggregated cellulose 有权
标题翻译：纳米解聚纤维素
公开(公告)号：US09187571B2
公开(公告)日：2015-11-17
申请号：US13822190
申请日：2011-09-14
申请人： Rajai H. Atalla
发明人： Rajai H. Atalla
IPC分类号： D21H11/18 , D21H11/20 , D21C5/00 , C08B15/08 , C08L1/02 , C08B1/00 , D21H17/00 , C12P19/14
CPC分类号： C08B1/00 , C08B15/08 , C08L1/02 , C12P19/14 , D21C5/005 , D21H17/005
摘要： Disclosed are methods and systems for treating cellulose to make it more accessible for enzymatic or chemical modification. The invention includes treating cellulose with an alkali in an alcohol/water co-solvent system. The treatment decrystallizes or deaggregates the cellulosic material. The methods and systems increase the efficiency of enzymatic or chemical modifications of cellulose for use as biofuels or cellulose derivatives.
摘要翻译：公开了用于处理纤维素以使其更易于酶或化学修饰的方法和系统。本发明包括在醇/水共溶剂体系中用碱处理纤维素。处理使纤维素材料脱结晶或解聚。所述方法和系统增加用作生物燃料或纤维素衍生物的纤维素的酶促或化学修饰的效率。

24. 发明授权

US6083582A Cellulose fiber based compositions and film and the process for their manufacture 失效
标题翻译：基于纤维素纤维的组合物和薄膜及其制造方法
公开(公告)号：US6083582A
公开(公告)日：2000-07-04
申请号：US122250
申请日：1998-07-24
申请人： Paul Ling Chen , Rongsheng Roger Ruan , Paul Bradley Addis , Li Xu , Lun Yi
发明人： Paul Ling Chen , Rongsheng Roger Ruan , Paul Bradley Addis , Li Xu , Lun Yi
IPC分类号： C08B15/08 , C09D101/02 , D21C5/00 , B29D23/00
CPC分类号： C09D101/02 , C08B15/08 , D21C5/00 , Y10T428/1324
摘要： A process and materials are described in which highly refined cellulose fibers are broken down into microfibers and further processed into compositions, films, coatings and solid materials which are biodegradable and even edible. The process for the formation of hardenable compositions may comprise providing a composition comprising highly refined non-wood cellulose fiber, mechanically reducing the size of the non-wood cellulose fiber to less than 2 mm, reducing the amount of binding of microfibers by lignin within said non-wood cellulose fibers present in said composition comprising cellulose fiber to form a first fiber product, providing pressure of at least 300 psi to said first fiber product while it is in the presence of a liquid, and removing said pressure within a time interval which will cause said cellulose fiber to break down into a second fiber product comprising microfibers in said liquid.
摘要翻译：描述了一种方法和材料，其中将高度精制的纤维素纤维分解成微纤维并进一步加工成可生物降解甚至可食用的组合物，薄膜，涂料和固体材料。用于形成可硬化组合物的方法可以包括提供包含高度精制的非木质纤维素纤维的组合物，将非木质纤维素纤维的尺寸机械地减小到小于2mm，从而减少所述木质素中所含的微纤维的结合量存在于所述组合物中的非木质纤维素纤维包含纤维素纤维以形成第一纤维产品，在液体存在下向所述第一纤维产品提供至少300psi的压力，并在时间间隔内去除所述压力将导致所述纤维素纤维分解成包含所述液体中的微纤维的第二纤维产品。

25. 发明授权

US4645541A Method of producing level off DP microcrystallinecellulose and glucose from lignocellulosic material 失效
标题翻译：从木质纤维素材料生产DP微晶纤维素和葡萄糖的方法
公开(公告)号：US4645541A
公开(公告)日：1987-02-24
申请号：US804547
申请日：1985-12-04
申请人： Edward A. DeLong
发明人： Edward A. DeLong
IPC分类号： C08B15/02 , C08B15/08 , C13K1/02 , C13K1/00
CPC分类号： C08B15/02 , C13K1/02
摘要： Microcrystalline cellulose has many applications in the pharmaceutical, food, paper and structural composite industries. Level off DP (Degree of Polymerization) microcrystalline cellulose is made up of a chain of about 250 glucose molecules in the form of microcrystal. In nature, several microcrystals are hinged together and surrounded by amorphous cellulose to form a cellulose microfibril. If the amorphous cellulose is removed, the resultant product is called level off DP (Degree of Polymerization) microcrystalline cellulose. When lignocellulosic material is processed according to applicant's earlier processes (Canadian Pat. Nos. 1,096,374 and 1,141,376), the dissociated material is partitioned by removing the lignin and the xylan leaving a low DP (320) cellulose fraction. This material can be converted to level off DP microcrystalline cellulose and glucose by soaking the cellulose in an acid solution, dewatering it, returning the acid-impregnated cellulose to the reactor, introducing high pressure steam (300-700 psi) and when substantially all of the material reaches a temperature of the order of 215.degree. C., releasing it instantly to atmosphere. This procedure will produce a mixture of level off DP microcrystalline cellulose and glucose. If the acid solution employed is sulfuric acid and the temperature of the cellulose is allowed to reach a uniform temperature of 234.degree. C. before instant release to atmosphere, the procedure will produce substantially all glucose.
摘要翻译：微晶纤维素在制药，食品，造纸和结构复合工业中有许多应用。脱水DP（聚合度）微晶纤维素由微晶形式的约250个葡萄糖分子链组成。在本质上，几个微晶被铰接在一起，被无定形纤维素包围以形成纤维素微原纤维。如果去除无定形纤维素，则所得产物称为DP（微聚合度）微晶纤维素。当木质纤维素材料根据申请人的早期方法（加拿大专利号1,096,374和1,141,376）进行加工时，通过除去木质素和木聚糖来分离离解的材料，留下低DP（320）纤维素级分。通过将纤维素浸泡在酸溶液中，使其脱水，将酸浸渍的纤维素返回到反应器中，引入高压蒸汽（300-700psi），并且当基本上全部材料达到215℃的温度，立即释放到大气中。该方法将产生平衡的DP微晶纤维素和葡萄糖的混合物。如果使用的酸溶液是硫酸，并且在快速释放到大气中之前允许纤维素的温度达到234℃的均匀温度，则该程序将产生基本上所有的葡萄糖。

26. 发明授权

US4172195A Process for the separation and purification of oligo and polyhydroxy compounds and borate esters thereof 失效
标题翻译：用于分离和纯化寡羟基化合物和多羟基化合物及其硼酸酯的方法
公开(公告)号：US4172195A
公开(公告)日：1979-10-23
申请号：US783351
申请日：1977-03-23
申请人： Roland Koster , Wilhelm V. Dahlhoff
发明人： Roland Koster , Wilhelm V. Dahlhoff
IPC分类号： C07C29/88 , C07B31/00 , C07B51/00 , C07C27/00 , C07C31/18 , C07C67/00 , C07F5/02 , C07H1/06 , C07H3/02 , C07H3/06 , C07H5/02 , C07H7/02 , C07H15/04 , C07H23/00 , C08B1/00 , C08B15/08 , C08B30/00 , C08B30/04 , C08B30/20 , C08B33/00 , C08B37/00 , C13K1/00
CPC分类号： C07H23/00 , C07H1/06 , Y02P20/55
摘要： A process for the separation and/or purification of oligo- and polyhydroxy compounds by introducing and subsequently eliminating protective groups, wherein oligo- and polyhydroxy compounds are reacted with bis(ethyl-pivaloyloxy)-diboroxane or ethylboroxine, optionally in inert solvents, the resulting O-ethylboranodiyl derivatives of the hydroxy compounds are separated off and the O-ethylboranodiyl protective groups are eliminated by alcoholic compounds, for example methanol or glycol.
摘要翻译：通过引入和随后消除保护基来分离和/或纯化寡羟基化合物和多羟基化合物的方法，其中寡羟基化合物和多羟基化合物任选地在惰性溶剂中与双（乙基 - 新戊酰氧基） - 二恶烷或乙基环硼氧烷反应，分离出羟基化合物的O-乙基硼烷二基衍生物，并通过醇化合物例如甲醇或二醇除去O-乙基硼烷二基保护基。

27. 发明授权

US3388119A Non-fibrous particulate cellulose and method of making same 失效
标题翻译：非纤维颗粒纤维素及其制备方法
公开(公告)号：US3388119A
公开(公告)日：1968-06-11
申请号：US47318565
申请日：1965-07-19
申请人： FMC CORP
发明人： CRUZ JR MAMERTO M
IPC分类号： A23L27/60 , A23L29/262 , C08B15/00 , C08B15/02 , C08B15/08
CPC分类号： C08B15/08 , A23L27/60 , A23L29/262 , C08B15/00 , C08B15/02

28. 发明授权

US12115221B2 Pickering emulsion stabilized by cellulose nanocrystals from ginkgo seed shells and preparation method thereof 有权
公开(公告)号：US12115221B2
公开(公告)日：2024-10-15
申请号：US17216771
申请日：2021-03-30
申请人： Jiangnan University
发明人： Liuping Fan , Yang Ni , Jinwei Li
IPC分类号： A61K47/38 , A23D7/005 , A23D7/04 , A23G9/32 , A61K9/107 , C08B1/00 , C08B15/08 , C09K23/00 , C09K23/56
CPC分类号： A61K47/38 , A23D7/0053 , A23D7/04 , A23G9/327 , A61K9/1075 , C08B1/003 , C08B15/08 , C09K23/00 , C09K23/56 , A23V2002/00
摘要： The disclosure discloses a Pickering emulsion stabilized by cellulose from ginkgo seed shells and a preparation method thereof, and belongs to the fields of preparation methods of biomass materials and food chemical industry. The disclosure uses ginkgo seed shells as a raw material to obtain high-purity cellulose through hot alkali treatment and sodium chlorite bleaching. After the cellulose is dried, the cellulose is hydrolyzed with sulfuric acid to obtain a cellulose nanocrystal suspension. The suspension is mixed with an oil phase, and the Pickering emulsion is obtained through high-speed shearing and homogeneous emulsification. The disclosure can prepare cellulose nanocrystals with different aspect ratios by adjusting the parameters of high-speed shearing and homogeneous emulsification according to actual production needs. Cellulose nanocrystals with high aspect ratio can be used to prepare stable Pickering emulsions with high oil phase and high viscosity, which can be applied to the fields of food, cosmetics and the like; and cellulose nanocrystals with low aspect ratio can be used to prepare Pickering emulsions with low viscosity and high fluidity, which can to be applied to the fields of food and medicine.

29. 发明公开

US20240110016A1 METHOD FOR PRODUCING POWDERED CELLULOSE 审中-公开
公开(公告)号：US20240110016A1
公开(公告)日：2024-04-04
申请号：US18261708
申请日：2022-01-19
申请人： SÖDRA SKOGSÄGARNA EKONOMISK FÖRENING
发明人： Narcis Mesic , Jim Parkås , Fredrik Solhage
IPC分类号： C08H8/00 , C08B15/08 , C08J3/12
CPC分类号： C08H8/00 , C08B15/08 , C08J3/12 , C08J2301/02
摘要： The present invention relates to a method for producing powdered cellulose. The method comprises the steps of providing dry pulp starting material, heat treating the dry pulp starting material to a temperature of 100-200° C., for less than 1 hour, and refining the heat-treated dry pulp starting material to particles having d97

30. 发明授权

US11905340B2 Nanocellulose and method for producing the same 有权
公开(公告)号：US11905340B2
公开(公告)日：2024-02-20
申请号：US17274239
申请日：2019-09-05
申请人： TOYO SEIKAN GROUP HOLDINGS, LTD.
发明人： Hideaki Nagahama , Yuuki Kinoshita , Toshiki Yamada
IPC分类号： C08B15/08 , C08B15/04 , C08B15/06 , C08L1/04 , C08L79/02 , C08L101/12 , B82Y30/00 , B82Y40/00
CPC分类号： C08B15/08 , C08B15/04 , C08B15/06 , C08L1/04 , C08L79/02 , C08L101/12 , B82Y30/00 , B82Y40/00
摘要： Nanocellulose containing a sulfuric acid group and/or a sulfo group, each of which is derived from a sulfuric acid treatment, and an anionic functional group derived from a hydrophilization treatment. The total amount of the sulfuric acid group and/or the sulfo group and the anionic functional group is more than 0.1 mmol/g and not more than 4.0 mmol/g. Also disclosed is a product including a mixture containing the nanocellulose and a method for producing the nanocellulose.

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