公开(公告)号：US20230272123A1

公开(公告)日：2023-08-31

申请号：US18136931

申请日：2023-04-20

Applicant: NEC CORPORATION ,  UNIVERSITY OF TSUKUBA

Inventor： Midori SHIMURA ,  Shukichi Tanaka ,  Toshie Miyamoto ,  Masatoshi Iji

IPC: C08B37/00

CPC classification number: C08B37/0024

Abstract: A paramylon-based resin having a weight-average molecular weight of paramylon in a range of 70000 to 140000, and formed by substituting hydrogen atoms of hydroxy groups of a paramylon with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group (acetyl group or/and propionyl group) having 2 or 3 carbon atoms, wherein a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2), Izod impact strength is 5.0 kJ/m2 or more, and an MFR (melt flow rate at 210° C. and under a load of 5 kg) is 2 g/10 min or more. To provide a paramylon-based resin excellent in mechanical characteristics and thermoplasticity. 2.2≤DSLo+DSSh≤2.8 (1) 5≤DSSh/DSLo≤25 (2)

公开(公告)号：US20210340282A1

公开(公告)日：2021-11-04

申请号：US17258955

申请日：2019-07-10

Applicant: NEC CORPORATION ,  UNIVERSITY OF TSUKUBA

Inventor： Midori SHIMURA ,  Shukichi TANAKA ,  Toshie MIYAMOTO ,  Masatoshi IJI

IPC: C08B37/00

Abstract: A paramylon-based resin having a weight-average molecular weight of paramylon in a range of 70000 to 140000, and formed by substituting hydrogen atoms of hydroxy groups of a paramylon with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group (acetyl group or/and propionyl group) having 2 or 3 carbon atoms, wherein a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2), Izod impact strength is 5.0 kJ/m2 or more, and an MFR (melt flow rate at 210° C. and under a load of 5 kg) is 2 g/10 min or more. To provide a paramylon-based resin excellent in mechanical characteristics and thermoplasticity. 2.2≤DSLo+DSSh≤2.8 (1) 5≤DSSh/DSLo≤25 (2)

公开(公告)号：US20180342769A1

公开(公告)日：2018-11-29

申请号：US16050544

申请日：2018-07-31

Applicant: NEC Corporation

Inventor： Masahiro SUGURO ,  Midori SHIMURA

IPC: H01M10/0567 ,  C07D295/145 ,  C07C67/347 ,  C07C69/734 ,  C07C227/08 ,  C07C227/10 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/133 ,  C07C67/31 ,  C07D295/14 ,  C07D211/10 ,  C07D207/20 ,  C07C229/30 ,  H01M4/587 ,  H01M4/38 ,  H01M4/02

Abstract: Provided is a lithium secondary cell which has high capacity, suppresses deterioration in capacity and improves cycle characteristics particularly when used in high-temperature environments and has long lifespan. Provided is a lithium secondary cell including a positive electrode active material layer containing a positive electrode active material, a negative electrode active material layer containing a negative electrode active material and an electrolytic solution for immersing the positive and negative electrode active material layers, wherein the electrolytic solution contains at least one certain ester compound.

公开(公告)号：US20230174681A1

公开(公告)日：2023-06-08

申请号：US17923787

申请日：2021-05-07

Applicant: NEC CORPORATION ,  UNIVERSITY OF TSUKUBA

Inventor： Midori SHIMURA ,  Shukichi TANAKA ,  Masatoshi IJI

IPC: C08B37/00

CPC classification number: C08B37/0024

Abstract: A paramylon-based resin excellent in mechanical characteristics and thermoplasticity is provided. The present embodiment provides a paramylon-based resin in which hydrogen atoms of hydroxy groups of paramylon are substituted by linear saturated aliphatic acyl group having 14 or more carbon atoms as a long chain component and/or acyl group having 2 or 3 carbon atoms (acetyl group or/and propionyl group) as a short chain component, wherein the paramylon has a weight average molecular weight in the range of more than 140000 to 220000 and a molecular weight distribution (weight average molecular weight/number average molecular weight) of 6.5 or less, a protein content of the paramylon is 0.22% by mass to 5.0% by mass, and a degree of substitution (DSLo) by the long chain component and a degree of substitution (DSSh) by the short chain component satisfy the following expressions (S1), (L1) and (T1); 1.7≤DSSh≤2.8 (S1), 0≤DSLo≤0.4 (L1), 2.1≤DSLo+DSSh≤2.8 (T1).

公开(公告)号：US20220243033A1

公开(公告)日：2022-08-04

申请号：US17617745

申请日：2020-06-12

Applicant: NEC Corporation

Inventor： Shukichi TANAKA ,  Kiyohiko TOYAMA ,  Midori SHIMURA ,  Toshie MIYAMOTO

IPC: C08K3/04 ,  C08K5/21 ,  C08K5/20 ,  C08K5/11 ,  C08K5/101 ,  C08K5/098

Abstract: The present invention provides a cellulose resin composition capable of forming a molded body having high-quality appearance and scratch resistance. A cellulosic resin composition including a cellulose derivative, a lubricant, and a plasticizer, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acetyl group, the content of the lubricant is in the range of 0.1 to 10% by mass, the plasticizer comprises an adipic acid mixed ester composed of adipic acid and diethylene glycol monomethyl ether and benzyl alcohol, and the content of the plasticizer is in the range of 5 to 70 parts by weight with respect to 100 parts by weight of the cellulose derivative (A).

公开(公告)号：US20200181289A1

公开(公告)日：2020-06-11

申请号：US16617571

申请日：2018-05-31

Applicant: NEC CORPORATION

Inventor： Shukichi TANAKA ,  Midori SHIMURA

IPC: C08B3/16 ,  C08B3/26

Abstract: A cellulose resin wherein a hydrogen atom of a hydroxy group of cellulose is substituted with a long-chain component which is a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component which is an acyl group (propionyl group) having 3 carbon atoms, the degree of substitution with the long-chain component (DSLo) and the degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2): DSLo+DSSh≥2.1  (1) 4≤DSSh/DSLo≤12  (2), the Izod impact strength is 5.0 kJ/m2 or more, and the MFR (melt flow rate at 200° C. and under a load of 5 kg) is 10 g/10 min or more.

公开(公告)号：US20180291117A1

公开(公告)日：2018-10-11

申请号：US15766116

申请日：2016-08-29

Applicant: NEC CORPORATION

Inventor： Midori SHIMURA ,  Shukichi TANAKA ,  Kiyohiko TOYAMA ,  Masatoshi IJI

IPC: C08B1/00 ,  C08B1/02 ,  C08B3/16 ,  C08L1/10

Abstract: To provide a cellulose derivative excellent in thermoplasticity, water resistance and strength (elastic modulus, impact strength), a cellulose derivative, which is obtained by introducing a short-chain organic group (acetyl group), a medium-chain organic group having 3 to 5 carbon atoms and a long-chain organic group having 6 to 30 carbon atoms at the following substitution degrees DSs into a cellulose, is used: Short-chain organic group: 0.7≤DSSH≤1.5; Medium-chain organic group: 0.5≤DSME≤2.0; Long-chain organic group: 0.1≤DSLO

公开(公告)号：US20240376296A1

公开(公告)日：2024-11-14

申请号：US18291953

申请日：2022-07-29

Applicant: NEC Corporation ,  NEC Platforms, Ltd.

Inventor： Yuto SANO ,  Kiyohiko TOYAMA ,  Shukichi TANAKA ,  Midori SHIMURA ,  Takuma OZAWA

IPC: C08L1/12 ,  C08K3/22 ,  C08K5/521

Abstract: Provided is a cellulose-based resin composition capable of forming a molded body excellent in flame retardancy and mechanical strength, and a molded body formed using the same. The present invention relates to a cellulose-based resin composition including: component (A): cellulose acetate, component (B): a predetermined phosphoric acid ester, component (C): an anti-dripping agent, and component (D): a metal hydroxide, wherein a content of the component (B) is 20% by mass or more and less than 30% by mass based on 100% by mass of a total content of the component (A) and the component (B), and a content of the component (D) is 10% by mass or more and 20% by mass or less based on 100% by mass of a total content of the components (A) to (D).

公开(公告)号：US20220235202A1

公开(公告)日：2022-07-28

申请号：US17617768

申请日：2020-06-12

Applicant: NEC Corporation

Inventor： Kiyohiko TOYAMA ,  Shukichi TANAKA ,  Midori SHIMURA ,  Toshie MIYAMOTO

IPC: C08L1/12 ,  C08L1/14 ,  C08K3/04 ,  C08K5/098 ,  C08K5/20 ,  C08K5/21 ,  C08K5/521 ,  C08K5/54

Abstract: The present invention provides a cellulose resin composition capable of forming a molded body having high-quality appearance and scratch resistance. A cellulose resin composition including a cellulose derivative, a lubricant, a plasticizer, and a colorant, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, the content of the lubricant is in a range of 0.1 to 10% by mass, the plasticizer is an aromatic plasticizer, the content of the plasticizer is in a range of 0.1 to 100 parts by mass per 100 parts by mass of the cellulose derivative, and the content of the colorant is in a range of 0.01 to 10% by mass.

公开(公告)号：US20210070966A1

公开(公告)日：2021-03-11

申请号：US16772422

申请日：2018-12-17

Applicant: NEC CORPORATION

Inventor： Midori SHIMURA ,  Shukichi TANAKA ,  Kiyohiko TOYAMA ,  Masatoshi IJI ,  Mina SHIMIZU ,  Toshie MIYAMOTO

IPC: C08L1/14 ,  C08L1/28 ,  C08K5/21 ,  C08K5/20 ,  C08K5/098 ,  C08L83/04 ,  C08K3/04 ,  C08K3/36 ,  C08G18/71

Abstract: A cellulose resin composition comprising a cellulose derivative (A) and a lubricant (B), wherein the cellulose derivative (A) is a cellulose derivative obtained by substituting at least a part of hydrogen atoms of hydroxyl groups of a cellulose with a short-chain organic group having 2 to 4 carbon atoms and a long-chain organic group having 8 to 30 carbon atoms with specific degrees of substitution; the lubricant (B) is at least one selected from the group consisting of a urea compound (B1) having a urea group (—NH—C(═O)—NH—) and an acyclic aliphatic group having 6 to 33 carbon atoms, an amide compound (B2) having an amide group (—C(═O)—NH—) and an acyclic aliphatic group having 6 to 33 carbon atoms, a fatty acid metal salt (B3), and a silicone-based lubricant (B4); and a content of the lubricant (B) is in a range of 0.1 to 10% by mass. A cellulose resin composition capable of forming a molded body having a high-quality appearance and scratch resistance is provided.