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1. 发明授权

US11525014B2 Cellulose acetate, cellulose acetate fiber, cellulose acetate composition, method for producing cellulose acetate, and method for producing cellulose acetate composition 有权
公开(公告)号：US11525014B2
公开(公告)日：2022-12-13
申请号：US17056468
申请日：2019-06-12
申请人： NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY , NIPPON PAPER INDUSTRIES CO., LTD. , DAICEL CORPORATION
发明人： Yasumitsu Uraki , Haruo Konno , Shu Shimamoto
IPC分类号： C08B3/06 , C08B1/00 , C08L1/12 , C08L57/00 , C08L87/00 , D01F2/28
摘要： An object of the present invention is to provide cellulose acetate that has excellent compatibility with a resin, can reinforce a resin, and has excellent thermal stability. An embodiment of the present invention is cellulose acetate having a cellulose triacetate I crystal structure, wherein a temperature at which a weight loss relative to weight at 100° C. reaches 5% is 200° C. or higher when the cellulose acetate is heated at a heating rate of 10° C./min under a nitrogen atmosphere.

2. 发明授权

US11220763B2 Cellulose acetate fibers, cellulose acetate composition, and method for producing same 有权
公开(公告)号：US11220763B2
公开(公告)日：2022-01-11
申请号：US16083699
申请日：2017-03-09
申请人： NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY , NIPPON PAPER INDUSTRIES CO., LTD. , DAICEL CORPORATION
发明人： Yasumitsu Uraki , Haruo Konno , Shu Shimamoto
IPC分类号： D01F2/28 , C08H8/00 , C08L1/12 , C08J5/04 , B82Y30/00 , D06M13/188 , C08B3/06
摘要： Disclosed herein is cellulose acetate fibers that have an excellent affinity for resins and is capable of reinforcing resins. The cellulose acetate fibers have a cellulose triacetate I crystal structure and a number-average fiber diameter of 2 nm or more but 400 nm or less.

3. 发明授权

US10188675B2 Nutrient composition having lipid metabolism-improving action 有权
公开(公告)号：US10188675B2
公开(公告)日：2019-01-29
申请号：US15106095
申请日：2014-03-24
申请人： DAICEL CORPORATION
发明人： Shu Shimamoto , Toshikazu Nakamura , Shizuka Ukita , Tsuyoshi Nakamura , Ryoko Yamauchi , Hiroshi Kobayashi
IPC分类号： A61K31/717 , A23K20/163 , A23K50/40 , A23K50/75 , A23L33/24 , A61K45/06 , A23K50/10 , A23K50/30
摘要： A nutrient composition contains a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may have a compositional distribution index (CDI) of 2.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents the half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and the theoretical value of half height width of chemical composition=2.35482√{square root over (3*DPw*(DS/3)*(1−DS/3))}/DPw [Math. 1] where DS is the total degree of acetyl substitution; and DPw is a weight-average degree of polymerization determined by a GPC-light scattering method using a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample).

4. 发明授权

US09796920B2 Quantum dot composite and wavelength conversion element, photoelectric conversion device, and solar cell having the composite 有权
公开(公告)号：US09796920B2
公开(公告)日：2017-10-24
申请号：US15115043
申请日：2014-01-29
申请人： DAICEL CORPORATION
发明人： Shu Shimamoto , Toshikazu Nakamura
IPC分类号： H01B1/20 , H01B1/22 , H01L31/00 , H01L33/50 , C09K11/02 , H01L31/0352 , H01L31/0384 , C09K11/56 , C09K11/88 , H01L31/0749 , B82Y20/00 , B82Y30/00
CPC分类号： C09K11/025 , B82Y20/00 , B82Y30/00 , C09K11/565 , C09K11/883 , H01B1/22 , H01L31/035218 , H01L31/0384 , H01L31/0749 , H01L33/502 , Y10S977/774 , Y10S977/948 , Y10S977/95
摘要： Disclosed herein is a quantum dot composite that can maintain luminous efficiency per unit quantum dot even when a quantum dot concentration is high, and therefore can achieve a high emission intensity. The quantum dot composite includes: a matrix; and quantum dots dispersed in the matrix, wherein the matrix is composed of cellulose acetate having a compositional distribution index (CDI) of 3.0 or less, and a concentration of the quantum dots is 0.05 wt % or higher.

5. 发明授权

US10703825B2 Cellulose acetate with a low degree of substitution 有权
公开(公告)号：US10703825B2
公开(公告)日：2020-07-07
申请号：US14775369
申请日：2014-03-12
申请人： DAICEL CORPORATION
发明人： Shizuka Ukita , Hiroki Taniguchi , Shu Shimamoto , Toshikazu Nakamura
IPC分类号： C08B3/06 , C08B3/24 , D01F2/28 , C08L1/12 , C08L1/14 , C08J5/18 , C08B3/28
摘要： A cellulose acetate according to the present invention has a total degree of acetyl substitution of 0.4 to 1.1 and has a compositional distribution index (CDI) of 3.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition is a half height width of chemical composition determined by analyzing a cellulose acetate propionate by HPLC, where the cellulose acetate propionate is prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and Theoretical value of half height width of chemical composition=2·35482√{square root over (3*DPw*(DS/3)*(1−DS/3))}/DPw [Math. 1] where DS is the total degree of acetyl substitution; and DPw is a weight-average degree of polymerization determined by a GPC-light scattering method using a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample).

6. 发明授权

US09595366B2 Conductive cellulose-based resin composition 有权
标题翻译：导电性纤维素类树脂组合物
公开(公告)号：US09595366B2
公开(公告)日：2017-03-14
申请号：US14420288
申请日：2013-08-08
申请人： DAICEL CORPORATION
发明人： Toshikazu Nakamura , Shu Shimamoto , Shizuka Okada
IPC分类号： H01B1/04 , H01B1/24 , B82Y30/00 , H01M4/583 , C08L1/10 , C08K3/04 , C08K7/24 , C08J5/18
CPC分类号： H01B1/24 , C08J5/18 , C08J2301/12 , C08K3/04 , C08K3/041 , C08K3/042 , C08K3/045 , C08K7/24 , C08K2201/001 , C08K2201/011 , C08L1/10
摘要： Problem to be SolvedIt is intended to provide a conductive resin composition that exhibits high conductivity even without being supplemented with a special resin or a third component, and a molded article obtained from the resin composition.SolutionThe conductive cellulose-based resin composition of the present invention comprises (A) an aliphatic cellulose ester and (B) at least one carbon material selected from the group consisting of a single-walled carbon nanotube, a multi-walled carbon nanotube, single-layer graphene, multi-layer graphene, fullerene, and carbon black. The volume resistivity of this conductive cellulose-based resin composition is, for example, 10−3 to 20 Ω·cm, preferably 10−3 to 1 Ω·cm. The content of the carbon material (B) is, for example, 0.5 to 80% by weight of the whole conductive cellulose-based resin composition.
摘要翻译：本发明的导电性纤维素类树脂组合物包含（A）脂肪族纤维素酯和（B）至少一种选自单壁碳纳米管，多壁碳纳米管，单壁碳纳米管，层状石墨烯，多层石墨烯，富勒烯和炭黑。该导电性纤维素系树脂组合物的体积电阻率例如为10 -3〜20Ω·cm，优选为10 -3〜1Ω·cm。碳材料（B）的含量例如为整个导电性纤维素系树脂组合物的0.5〜80重量％。

7. 发明授权

US10442870B2 Cellulose acylate-oxoalkanoate 有权
公开(公告)号：US10442870B2
公开(公告)日：2019-10-15
申请号：US15126893
申请日：2014-03-19
申请人： DAICEL CORPORATION
发明人： Tomohiro Hashizume , Shizuka Ukita , Shu Shimamoto , Toshikazu Nakamura
IPC分类号： C08B3/12 , C08B31/04 , C08B37/00 , C08B3/16
摘要： Provided is a novel cellulose derivative having excellent water resistance. This is a cellulose acylate oxoalkanoate which is a cellulose derivative corresponding to cellulose, except with substituents replacing part or all of hydrogen atoms in the hydroxy groups of the cellulose. The substituents includes a group represented by General Formula (1) and a group represented by General Formula (2). The cellulose acylate oxoalkanoate has a degree x of substitution with the group represented by General Formula (1), a degree y of substitution with the group represented by General Formula (2), and a degree z of unsubstitution, where x, y, and z meet conditions specified by Expressions (A), (B), and (C): 0.1≤x≤2.99 (A) 0.01≤y≤2.90 (B) z=3−x−y (C)

8. 发明授权

US09217043B2 Process for producing solid cellulose and process for producing cellulose ester 有权
标题翻译：生产固体纤维素的方法和生产纤维素酯的方法
公开(公告)号：US09217043B2
公开(公告)日：2015-12-22
申请号：US14139458
申请日：2013-12-23
申请人： DAICEL CORPORATION
发明人： Shu Shimamoto , Hiroyuki Ohno
IPC分类号： C08B3/06 , C08B1/00 , D01F2/02
CPC分类号： C08B3/06 , C08B1/003 , D01F2/02 , Y10T428/2991
摘要： Provided is a process for obtaining solid cellulose, such as a cellulose solidified article or cellulose shaped article, from a cellulose solution without causing discharge of large amounts of waste liquids and environmental issues such as large energy consumption. The process produces solid cellulose through the steps of (A) dissolving cellulose in a solvent (s1) to give a cellulose solution, where the solvent (s1) includes at least one onium hydroxide in a content of from 45 to 85 percent by weight and water in a content of from 15 to 55 percent by weight, and the at least one onium hydroxide is selected from the group consisting of quaternary phosphonium hydroxides and quaternary ammonium hydroxides; (B) bringing the cellulose solution into contact with a poor solvent (s2) to precipitate cellulose as a cellulose solidified article; and (C) separating and collecting the cellulose solidified article.
摘要翻译：提供了从纤维素溶液中获得固体纤维素如纤维素固化制品或纤维素成形制品的方法，而不会导致大量废液的排出和诸如能量消耗大的环境问题。该方法通过以下步骤生产固体纤维素：（A）将纤维素溶解在溶剂（s1）中以得到纤维素溶液，其中溶剂（s1）包含至少一种含量为45至85重量％的氢氧化鎓，含量为15至55重量％的水，并且所述至少一种氢氧化鎓选自季铵氢氧化物和季铵氢氧化物; （B）使纤维素溶液与不良溶剂（s2）接触以沉淀纤维素作为纤维素固化制品; 和（C）分离和收集纤维素固化制品。

9. 发明授权

US10889916B2 Cellulose acetate fiber, cellulose acetate fiber molded article, and methods respectively for producing said cellulose acetate fiber and said cellulose acetate fiber molded article 有权
公开(公告)号：US10889916B2
公开(公告)日：2021-01-12
申请号：US15111688
申请日：2014-01-15
申请人： DAICEL CORPORATION
发明人： Shu Shimamoto , Shizuka Okada , Hiroki Taniguchi , Toshikazu Nakamura
IPC分类号： C08B3/06 , D01F2/28 , D04H1/728 , D01D5/00 , D04H1/425
摘要： Provided are a cellulose acetate fiber and a cellulose acetate fiber molded article which are excellent in water solubility and biodegradability and are small in load onto the natural environment even when allowed to stand still in the environment. The invention provides a cellulose acetate fiber containing cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.3 and a compositional distribution index (CDI) of 2.0 or less as well as a cellulose acetate fiber molded article.

10. 发明授权

US09543057B2 Conductive cellulose-based resin composition 有权
标题翻译：导电性纤维素类树脂组合物
公开(公告)号：US09543057B2
公开(公告)日：2017-01-10
申请号：US14419946
申请日：2013-08-08
申请人： DAICEL CORPORATION
发明人： Toshikazu Nakamura , Shu Shimamoto , Shizuka Okada , Hiroki Taniguchi
IPC分类号： H01B1/04 , H01B1/24 , H01M4/583 , B82Y30/00 , C08L1/10 , C08K3/04 , C08K7/24 , C08J5/18
CPC分类号： H01B1/24 , C08J5/18 , C08J2301/12 , C08K3/04 , C08K3/041 , C08K3/042 , C08K3/045 , C08K7/24 , C08K2201/001 , C08K2201/011 , C08L1/10
摘要： The conductive cellulose-based resin composition of the present invention comprises (A) a cellulose acetate ester having a total degree of acetyl substitution of 0.5 to 1.1 and (B) at least one carbon material selected from the group consisting of single-walled carbon nanotube, multi-walled carbon nanotube, single-layer graphene, multi-layer graphene, fullerene, and carbon black. This conductive cellulose resin composition exhibits high conductivity even without being supplemented with a special resin or a third component. Also, the conductive cellulose-based resin composition can be easily molded in an aqueous system.
摘要翻译：本发明的导电性纤维素类树脂组合物包含（A）总乙酰基取代度为0.5〜1.1的乙酸纤维素酯和（B）至少一种选自单壁碳纳米管，多壁碳纳米管，单层石墨烯，多层石墨烯，富勒烯和炭黑。该导电性纤维素树脂组合物即使不添加特殊的树脂或第三成分，也显示出高的导电性。此外，导电性纤维素类树脂组合物也可以容易地在水性体系中成型。

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