-
公开(公告)号：US20190169402A1
公开(公告)日：2019-06-06
申请号：US16310003
申请日：2017-06-15
Applicant: NEC CORPORATION
Inventor： Kiyohiko TOYAMA , Masatoshi IJI , Kunihiko ISHIHARA
Abstract: A cellulose resin composition containing a cellulose resin (A) and a high refractive-index organic material (B), in which the cellulose resin (A) is a cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms and a long-chain organic group having 7 or more carbon atoms, and the mass fraction (B/A) of the high refractive-index organic material (B) to the cellulose resin (A) falls within the range of 10/90 to 70/30.
-
公开(公告)号：US20170260294A1
公开(公告)日：2017-09-14
申请号：US15521965
申请日：2015-04-24
Applicant: NEC Corporation
Inventor： Kiyohiko TOYAMA , Masatoshi IJI , Shukichi TANAKA
Abstract: A cellulose derivative having a long-chain organic group having 5 or more carbon atoms and a short-chain organic group having 4 or less carbon atoms which are introduced by use of hydroxy groups of a cellulose, and including a crystal structure derived from a cellulose derivative portion to which the short-chain organic group is linked, wherein an average number of hydroxy groups per glucose unit is of 1.0 or less.
-
公开(公告)号：US20160251452A1
公开(公告)日：2016-09-01
申请号：US15030936
申请日：2014-10-07
Applicant: NEC CORPORATION
Inventor： Kiyohiko TOYAMA , Masatoshi IJI , Shukichi TANAKA
Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon atoms introduced therein.
Abstract translation: 一种纤维素衍生物的制造方法，其特征在于，包括：第一步骤，使纤维素与含有长链反应物的第一反应物反应，与纤维素的羟基反应，引入具有5个以上碳原子的长链有机基团 在固体 - 液体异质体系中，为了形成溶胀状态的纤维素衍生物，导入其中具有5个或更多碳原子的长链有机基团并且具有一部分纤维素的羟基的纤维素衍生物残留，以及 进行固液分离，得到纤维素衍生物作为中间体; 第二步骤包括使中间体纤维素衍生物和包含短链反应物的第二反应物与中间体纤维素衍生物的剩余羟基反应以引入具有4个或更少碳原子的短链有机基团以形成最终的 具有引入其中具有4个或更少碳原子的短链有机基团的纤维素衍生物。
-
公开(公告)号：US20190330450A1
公开(公告)日：2019-10-31
申请号：US16309977
申请日：2017-06-15
Applicant: NEC CORPORATION
Inventor： Kiyohiko TOYAMA , Masatoshi IJI , Kunihiko ISHIHARA , Yutaro SHIMODE
Abstract: A cellulose resin composition comprising a cellulose resin, a high refractive-index organic material and a carbon black, in which the cellulose resin is an acylated cellulose obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, the carbon black is an acidic carbon black, the mass fraction (B/A) of the high refractive-index organic material (B) to the cellulose resin (A) falls within the range of 10/90 to 70/30, and the content of the carbon black (C) relative to the total of the cellulose resin composition falls within the range of 0.05 to 10% by mass.
-
公开(公告)号：US20180355066A1
公开(公告)日：2018-12-13
申请号：US16005314
申请日：2018-06-11
Applicant: NEC Corporation
Inventor： Kiyohiko TOYAMA , Masatoshi IJI , Shukichi TANAKA
Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon atoms introduced therein.
-
Patent Agency Ranking
公开(公告)号：US20180346713A1
公开(公告)日：2018-12-06
申请号：US15780907
申请日：2016-12-02
Applicant: NEC CORPORATION
Inventor： Makoto SOYAMA , Masatoshi IJI , Shukichi TANAKA , Kiyohiko TOYAMA
CPC classification number: C08K5/29 , C08K5/5399 , C08K9/06 , C08L67/02 , C08L67/04 , C08L83/08 , C08L101/16
Abstract: A polylactic acid resin composition according to an embodiment of the invention includes a polylactic acid resin, an aliphatic polyester resin, a carbodiimide compound and a metal hydrate, in which the metal hydrate is surface-treated with a specific silane coupling agent; and the carbodiimide compound includes an aliphatic carbodiimide compound.
-
公开(公告)号：US20150368442A1
公开(公告)日：2015-12-24
申请号：US14764244
申请日：2014-01-30
Applicant: NEC CORPORATION
Inventor： Makoto SOYAMA , Yukihiro KIUCHI , Masatoshi IJI , Shukichi TANAKA , Kiyohiko TOYAMA
IPC: C08L1/12
Abstract: A composition containing a cellulose resin (X) obtained by binding an organic group to cellulose or a derivative thereof and a linear aliphatic polyester (Y), which is at least one of the following linear aliphatic polyesters (Y1) and (Y2) or a crosslinked product thereof: (Y1) a linear aliphatic polyester containing at least one of repeat units represented by the following formula (I) and formula (II) —(CO—R1—COO—R2—O)— formula (I) where R1 represents a bivalent aliphatic group having 1 to 12 carbon atoms and R2 represents a bivalent aliphatic group having 2 to 12 carbon atoms. —(CO—R3—O)— formula (II) where R3 represents a bivalent aliphatic group having 2 to 10 carbon atoms. (Y2) a linear aliphatic polyester comprising a ring-opening polymerization product of a cyclic ester.
Abstract translation: 含有通过将有机基团与纤维素或其衍生物结合而获得的纤维素树脂（X）和直链脂族聚酯（Y）的组合物，其为以下直链脂族聚酯（Y1）和（Y2）中的至少一种或 交联产物：（Y1）含有由下式（I）和式（II）表示的重复单元中的至少一种 - （CO-R1-COO-R2-O） - 式（I）中的至少一种的直链脂族聚酯，其中R 1 表示碳原子数1〜12的二价脂肪族基，R2表示碳原子数2〜12的二价脂肪族基团。 - （CO-R 3 -O） - 式（II）其中R 3表示具有2至10个碳原子的二价脂族基团。 （Y2）包含环酯的开环聚合产物的直链脂肪族聚酯。
-
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
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
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.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.018 seconds)
