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公开(公告)号：US10058617B2
公开(公告)日：2018-08-28
申请号：US15376921
申请日：2016-12-13
IPC分类号： A61K47/38
CPC分类号： A61K47/38 , A61K9/4816 , C08B11/193 , C08L1/28 , C08L1/284 , C08L5/00
摘要： Provided is a composition for forming a film, the composition not having completely dissolved hydroxypropyl methyl cellulose (HPMC), and enabling formation of the film having a uniform thickness by suppressing the viscosity increase of the composition around an immersion temperature of 50° C. More specifically provided is a composition for forming a film, the composition comprising hypromellose having methoxy group content of 28.0 to 30.0% by weight and hydroxypropoxy group content of 7.6 to 8.5% by weight, wherein a 2% by weight aqueous solution of the hypromellose provides a viscosity at 20° C. of 4.0 to 6.5 mPa·s, a 20% by weight dispersion of the hypromellose provides a viscosity at 50° C. of 2,000 to 11,000 mPa·s, and a 20% by weight aqueous solution of the hypromellose provides a gelation temperature of 54 to 57° C.; and a solvent.
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12.发明授权Method for preparing cellulose ether having low degree of polymerization and cellulose ether prepared thereby 有权制备低聚合度的纤维素醚的方法和由此制备的纤维素醚公开(公告)号：US09382336B2
公开(公告)日：2016-07-05
申请号：US14150793
申请日：2014-01-09
发明人： Mitsuo Narita , Yuichi Nishiyama
摘要： Provided is a method for preparing a cellulose ether having a low degree of polymerization and undergoing less yellowing and a cellulose ether prepared thereby. Specifically, provided is a method for preparing a cellulose ether having a low degree of polymerization, the method including a step of bringing pulp and an alkali metal hydroxide solution into contact with each other or mixing them to obtain a corresponding alkali cellulose, a first depolymerization step of reacting the alkali cellulose with oxygen to adjust a viscosity reduction percentage of the alkali cellulose to from 10 to 95%, a step of reacting the depolymerized alkali cellulose with an etherifying agent, a step of washing and drying the reaction product to obtain a cellulose ether, and a second depolymerization step of bringing the cellulose ether into contact with hydrochloric acid to adjust a viscosity reduction percentage of the cellulose ether from 40 to 99.9%.
摘要翻译： 本发明提供一种制备聚合度低，发黄不足的纤维素醚的方法以及由此制备的纤维素醚。 具体地说，提供一种低聚合度的纤维素醚的制造方法，其特征在于，包括使纸浆和碱金属氢氧化物溶液相互接触或混合以获得相应的碱纤维素的步骤，首先解聚 将碱纤维素与氧反应以将碱纤维素的粘度降低百分比调节为10〜95％的步骤，使解聚的碱纤维素与醚化剂反应的步骤，将反应产物洗涤和干燥的步骤， 纤维素醚和使纤维素醚与盐酸接触的第二解聚步骤，将纤维素醚的粘度降低百分比调节至40〜99.9％。
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13.发明授权Hydroxypropylmethylcellulose having high thermal gel strength, method for producing the same and food comprising the hydroxypropylmethylcellulose 有权具有高热凝胶强度的羟丙基甲基纤维素，其制备方法和包含羟丙基甲基纤维素的食品公开(公告)号：US09266970B2
公开(公告)日：2016-02-23
申请号：US13875819
申请日：2013-05-02
发明人： Rumiko Itoh , Mitsuo Narita , Miyuki Fukasawa
IPC分类号： C08B11/193 , A21D2/18 , A21D13/00 , A21D13/04 , A21D13/06 , A23C20/02 , A23L1/0534 , A23L1/187 , A23L1/216 , A23L1/217 , C08B1/08 , C08L1/28
CPC分类号： C08B11/193 , A21D2/188 , A21D13/04 , A21D13/047 , A21D13/066 , A21D13/38 , A21D13/40 , A23C20/025 , A23L9/12 , A23L19/13 , A23L19/18 , A23L29/262 , C08B1/08 , C08L1/284
摘要： Provided is hydroxypropylmethylcellulose having a high thermal gelation temperature and a high thermal gel strength and a method for producing the same and a food comprising the hydroxypropylmethylcellulose. More specifically, provided is hydroxypropylmethylcellulose having an average substitution degree of a methoxy group of 1.0 to 2.0 per glucose unit, an average substitution degree of a hydroxypropoxy group of 0.05 to 0.4 per glucose unit, and a A/B value of 0.305 or greater wherein A represents a substitution degree of a methoxy group directly substituted for a hydroxy group on carbon at position 6 in a glucose unit free from a hydroxypropoxy group-substituted hydroxy group, B represents a substitution degree of a methoxy group per glucose unit, and the A/B represents a value of A divided by B.
摘要翻译： 本发明提供具有高热凝胶化温度和高热凝胶强度的羟丙基甲基纤维素及其制备方法和包含羟丙基甲基纤维素的食品。 更具体地，提供了平均取代度为每个葡萄糖单元为1.0-2.0的羟丙基甲基纤维素，羟基丙氧基的平均取代度为每个葡萄糖单元为0.05-0.4，A / B为0.305以上，其中 A表示在不含羟基丙氧基取代羟基的葡萄糖单元中6位的碳上直接取代的羟基的取代度，B表示每个葡萄糖单元的甲氧基的取代度，A / B表示A除以B的值。
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14.发明申请公开(公告)号：US20150040798A1
公开(公告)日：2015-02-12
申请号：US14447846
申请日：2014-07-31
IPC分类号： C08B11/20 , C09D101/28
CPC分类号： C08B11/20 , C08B1/06 , C08B1/08 , C08B11/00 , C08B15/00 , C09D101/26 , C09D101/284 , D21C9/004 , D21C9/007 , D21H15/02 , D21H19/34 , D21H19/52
摘要： Provided are a method for producing a water-soluble cellulose ether having a low degree of polymerization and enhanced whiteness, and the like. The method includes the steps of: bringing a pulp powder having a multiplication product of less than 0.004 mm2 which is obtained by multiplying a number-average fiber length by a number-average fiber width, each measured with a Kajaani fiber length analyzer, into contact with an alkali metal hydroxide to obtain an alkali cellulose; reacting the alkali cellulose with an etherifying agent to obtain a crude water-soluble cellulose ether having a high degree of polymerization; purifying the crude water-soluble cellulose ether; drying the purified water-soluble cellulose ether; grinding the dried water-soluble cellulose ether into a water-soluble cellulose ether powder; and depolymerizing the water-soluble cellulose ether powder to obtain the water-soluble cellulose ether having a low degree of polymerization.
摘要翻译： 提供具有低聚合度和白度提高的水溶性纤维素醚的制造方法等。 该方法包括以下步骤：使用Kajaani纤维长度分析仪测定的数均纤维宽度乘以数均纤维长度乘以小于0.004mm 2的纸浆粉末，形成接触 与碱金属氢氧化物反应得到碱纤维素; 使碱纤维素与醚化剂反应，得到聚合度高的粗水溶性纤维素醚; 净化粗水溶性纤维素醚; 干燥纯化的水溶性纤维素醚; 将干燥的水溶性纤维素醚研磨成水溶性纤维素醚粉末; 并使水溶性纤维素醚粉末解聚，得到低聚合度的水溶性纤维素醚。
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公开(公告)号：US20230312761A1
公开(公告)日：2023-10-05
申请号：US18190171
申请日：2023-03-27
发明人： Akira Kitamura , Mitsuo Narita
摘要： There is provided a method for producing a hydroxyalkyl alkyl cellulose having a high storage modulus (thermal gel strength) and a small number of undissolved fibers. More specifically, there is provided a method for producing a hydroxyalkyl alkyl cellulose including steps of: bringing sheet-shaped pulp having a pore volume of 0.55 ml/g or more and less than 1.00 ml/g or chip-shaped pulp obtained by cutting the sheet-shaped pulp into contact with a first alkali metal hydroxide solution to obtain an alkali cellulose mixture, removing a liquid from the alkali cellulose mixture to obtain alkali cellulose, reacting the alkali cellulose with an alkylating agent and a hydroxyalkylating agent to obtain a first reaction mixture, mixing the first reaction mixture with a second alkali metal hydroxide solution to obtain a second reaction mixture, and purifying the second reaction mixture to obtain a hydroxyalkyl alkyl cellulose.
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公开(公告)号：US11767371B2
公开(公告)日：2023-09-26
申请号：US17484405
申请日：2021-09-24
发明人： Akiko Miki , Taishi Kitaguchi , Akira Kitamura , Mitsuo Narita
CPC分类号： C08B3/16 , B29C48/022 , B29C48/36 , C08B13/00 , C08L1/32 , A61K45/06 , A61K47/38 , B29K2001/08
摘要： There is provided a method for efficiently produce hydroxypropyl methyl cellulose acetate succinate (HPMCAS) having excellent flowability, where acetic acid in a reaction product mixture subjected to a wash and recovery step can be reduced. More specifically, there is provided a method for producing HPMCAS including an esterification step of esterifying hydroxypropyl methyl cellulose (HPMC) with acetic anhydride and succinic anhydride in acetic acid as a solvent to obtain a reaction product solution containing HPMCAS; a water addition step of adding water to the reaction product solution to obtain a water-added reaction product solution; an acetic acid removal step of removing at least a portion of both the solvent acetic acid and acetic acid derived from the acetic anhydride from the water-added reaction product solution to obtain a mixture having an acetic acid content reduced; and a wash and recovery step of washing the mixture and recovering the HPMCAS.
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公开(公告)号：US11365266B2
公开(公告)日：2022-06-21
申请号：US15919909
申请日：2018-03-13
摘要： A method for producing a cellulose ether having a high viscosity while keeping the same degree of polymerization as that in the production of a shaped pulp without changing a raw material or production facility. More specifically, provided is a method for producing a cellulose ether including steps of: cutting or pulverizing pulp to obtain sheet-like, chip-like, or powdery cellulose pulp, wherein the pulp is formed in a form of roll whose surface layer on at least one of the circumferential side and the ends is removed, or in a form of bale whose surface layer on at least one side is removed; bringing the obtained cellulose pulp into contact with an alkali metal hydroxide solution to obtain alkali cellulose; reacting the alkali cellulose with an alkylating agent to obtain a reaction product mixture; and subjecting the reaction product mixture to purification to obtain the cellulose ether.
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公开(公告)号：US11089804B2
公开(公告)日：2021-08-17
申请号：US15534417
申请日：2015-12-10
发明人： Atsushi Yamamoto , Akira Kitamura , Mitsuo Narita , Heiko Nebel , Anita Hirte
摘要： An oil-in-water type composition which can provide a chewy texture both in a non-cooked state and a heated state and does not show water/oil separation, including: an alkyl cellulose, a 1% by mass aqueous solution of which has a viscosity at 20° C. of from 4,000 to 11,000 mPa·s when measured with a Brookfield type viscometer and a 1.5% by mass aqueous solution of which has a storage modulus G′ (65° C.) at 65° C. of from 2,500 to 4,500 Pa; an edible oil or fat; and water. Also provided is a food using the alkyl cellulose.
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19.发明申请公开(公告)号：US20170267786A1
公开(公告)日：2017-09-21
申请号：US15452894
申请日：2017-03-08
IPC分类号： C08B11/193 , A23L29/288 , A23L33/10
摘要： Hydroxypropyl methyl cellulose having a high thermal gel strength even at a low viscosity is provided and utilized. Specifically provided is hydroxypropyl methyl cellulose having such properties that a 2% by weight aqueous solution of the hydroxypropyl methyl cellulose has a viscosity at 20° C. of 300 to 2,000 mPa·s and a storage elastic modulus at 85° C. of 2,000 to 4,500 mPa. Also provided is a food comprising the hydroxypropyl methyl cellulose. Further provided is a method for producing the hydroxypropyl methyl cellulose, the method comprising a step of depolymerizing, with an acid, high-viscosity hydroxypropyl methyl cellulose having such a property that a 2% by weight aqueous solution of the high-viscosity hydroxypropyl methyl cellulose has a viscosity at 20° C. of 70,000 to 100,000 mPa·s to obtain the hydroxypropyl methyl cellulose.
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20.发明申请Method For Producing Water-Soluble Nonionic Cellulose Ether Excellent in Storage Stability 有权生产水溶性非离子纤维素醚的储存稳定性优良的方法公开(公告)号：US20150005486A1
公开(公告)日：2015-01-01
申请号：US14305174
申请日：2014-06-16
发明人： Mitsuo Narita
CPC分类号： C08B11/20 , C08B11/00 , C08B11/08 , C08B11/193
摘要： Provided is a water-soluble nonionic cellulose ether excellent in storage stability. More specifically, provided is a method for producing a water-soluble nonionic cellulose ether including an etherification step of reacting an alkali cellulose with an etherifying agent to obtain a crude cellulose ether, a washing step of washing the crude cellulose ether to obtain a washed cellulose ether, a drying step of drying the washed cellulose ether, and a grinding step of grinding the cellulose ether during or after the drying, wherein during the washing step or in any of the steps after the washing step, a pH regulator is mixed so as to allow an aqueous 2% by weight solution of the cellulose ether as an end product to have a pH value of from 7.0 to 10.5.
摘要翻译： 提供了保存稳定性优异的水溶性非离子性纤维素醚。 更具体地，提供一种水溶性非离子纤维素醚的制造方法，其包括使碱性纤维素与醚化剂反应得到粗纤维素醚的醚化工序，洗涤粗纤维素醚以洗涤纤维素 乙醚，干燥洗涤的纤维素醚的干燥步骤，以及在干燥过程中或之后研磨纤维素醚的研磨步骤，其中在洗涤步骤或洗涤步骤之后的任何步骤中，将pH调节剂混合成 以使2重量％的纤维素醚水溶液作为最终产物的pH值为7.0至10.5。
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