JPH0476361B2 - - Google Patents

Info

Publication number
JPH0476361B2
JPH0476361B2 JP16354985A JP16354985A JPH0476361B2 JP H0476361 B2 JPH0476361 B2 JP H0476361B2 JP 16354985 A JP16354985 A JP 16354985A JP 16354985 A JP16354985 A JP 16354985A JP H0476361 B2 JPH0476361 B2 JP H0476361B2
Authority
JP
Japan
Prior art keywords
hydrogen chloride
cellulose ether
reaction
polymerization
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP16354985A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6225101A (ja
Inventor
Tooru Chiba
Yasuaki Muto
Kazumasa Maruyama
Koji Hatayama
Juichi Nishama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15776006&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH0476361(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP16354985A priority Critical patent/JPS6225101A/ja
Priority to DE1986401621 priority patent/DE210917T1/de
Priority to EP19860401621 priority patent/EP0210917B1/en
Priority to AU60390/86A priority patent/AU583139B2/en
Priority to DE8686401621T priority patent/DE3675993D1/de
Publication of JPS6225101A publication Critical patent/JPS6225101A/ja
Publication of JPH0476361B2 publication Critical patent/JPH0476361B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806—Coating materials
    • A61K9/2833—Organic macromolecular compounds
    • A61K9/286—Polysaccharides, e.g. gums; Cyclodextrin
    • A61K9/2866—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
JP16354985A 1985-07-24 1985-07-24 低重合度セルロ−スエ−テルの製造方法 Granted JPS6225101A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP16354985A JPS6225101A (ja) 1985-07-24 1985-07-24 低重合度セルロ−スエ−テルの製造方法
DE1986401621 DE210917T1 (de) 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.
EP19860401621 EP0210917B1 (en) 1985-07-24 1986-07-21 A method for the preparation of a cellulose ether having a decreased degree of polymerization
AU60390/86A AU583139B2 (en) 1985-07-24 1986-07-21 A method for the preparation of a cellulose ether having a decreased degree of polymerization
DE8686401621T DE3675993D1 (de) 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16354985A JPS6225101A (ja) 1985-07-24 1985-07-24 低重合度セルロ−スエ−テルの製造方法

Publications (2)

Publication Number Publication Date
JPS6225101A JPS6225101A (ja) 1987-02-03
JPH0476361B2 true JPH0476361B2 (enExample) 1992-12-03

Family

ID=15776006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16354985A Granted JPS6225101A (ja) 1985-07-24 1985-07-24 低重合度セルロ−スエ−テルの製造方法

Country Status (4)

Country Link
EP (1) EP0210917B1 (enExample)
JP (1) JPS6225101A (enExample)
AU (1) AU583139B2 (enExample)
DE (2) DE3675993D1 (enExample)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003167A1 (en) * 1990-08-24 1992-03-05 Shin-Etsu Chemical Co., Ltd. Coating base for pharmaceutical film and production thereof
US5476668A (en) * 1990-08-24 1995-12-19 Shin-Etsu Chemical Co., Ltd. Base for film-coating pharmaceuticals and method for preparing same
US6261218B1 (en) * 1998-12-01 2001-07-17 The Dow Chemical Company Process and apparatus for making low molecular weight cellulose ethers
US6294008B1 (en) * 1999-04-21 2001-09-25 The Dow Chemical Company Haze-free cellulose ether capsules and process for making
US6306333B1 (en) 1999-06-24 2001-10-23 The Dow Chemical Company Process for making cellulose ethers having reduced yellowing and discoloration
DE10009642C1 (de) * 2000-03-01 2001-06-13 Clariant Gmbh Verfahren zur sauer katalysierten, hydrolytischen Depolymerisierung von Celluloseethern und Verwendung einer emaillierten Drucknutsche zur Depolymerisierung von Celluloseethern
KR100461565B1 (ko) * 2001-09-22 2004-12-14 삼성정밀화학 주식회사 저점도 히드록시프로필메틸 셀룰로오스의 제조방법
US8865432B2 (en) 2004-02-26 2014-10-21 Shin-Etsu Chemical Co., Ltd. Method for preparing cellulose derivatives having solubility improved
WO2007023513A1 (ja) * 2005-08-22 2007-03-01 Shin-Etsu Chemical Co., Ltd. 溶解性の改善されたセルロース誘導体の製造製法
KR101404282B1 (ko) * 2006-06-14 2014-06-05 다우 글로벌 테크놀로지스 엘엘씨 셀룰로오스 에테르의 평균 분자량 감소 방법
EP2627676B1 (en) 2010-10-12 2017-03-08 Dow Global Technologies LLC Novel cellulose ethers and their use
BR112014000738B1 (pt) 2011-07-27 2020-10-27 Dow Global Technologies Llc método para fazer uma hidroxialquil alquilcelulose
WO2013025397A1 (en) 2011-08-12 2013-02-21 Dow Global Technologies Llc Optical retardation film and method of manufacturing
JP6073342B2 (ja) 2011-10-19 2017-02-01 ダウ グローバル テクノロジーズ エルエルシー 満腹を誘導する方法および組成物
PT2836559T (pt) 2012-04-11 2016-08-31 Dow Global Technologies Llc Composição que compreende um diluente orgânico e um éter de celulose.
KR20140146181A (ko) 2012-04-11 2014-12-24 다우 글로벌 테크놀로지스 엘엘씨 특정 치환체 분포를 갖는 에스테르화된 셀룰로즈 에테르
CN104364268B (zh) 2012-04-11 2016-07-20 陶氏环球技术有限责任公司 包含纤维素醚的熔融挤出的组合物
US9962446B2 (en) 2012-07-17 2018-05-08 Dow Global Technologies Llc Solid dispersion comprising a highly substituted hydroxyalkyl methylcellulose
KR102108814B1 (ko) 2012-08-24 2020-05-12 다우 글로벌 테크놀로지스 엘엘씨 알칼리 금속 카복실레이트 및 지방족 카복실산의 존재하의 에스테르화된 셀룰로스 에테르의 제조 방법
MX2015002425A (es) 2012-08-24 2015-11-06 Dow Global Technologies Llc Procedimiento para preparar un ester de un eter de celulosa en presencia de un acido carboxilico alifatico.
MX2015002427A (es) 2012-08-24 2015-06-22 Dow Global Technologies Llc Eteres de celulosa esterificados parcialmente entrelazados.
CN104812827B (zh) 2012-09-25 2017-03-08 陶氏环球技术有限责任公司 制备具有高堆积密度、良好流动性和/或冷水中分散性以及低溶液颜色的纤维素衍生物的方法
EP2997098B1 (en) 2013-04-12 2017-03-22 Dow Global Technologies LLC Water-soluble polysaccharides of improved palatability
CN105073869B (zh) 2013-04-12 2017-07-14 陶氏环球技术有限责任公司 用于制备甲基纤维素水溶液的方法
WO2014168917A1 (en) 2013-04-12 2014-10-16 Dow Global Technologies Llc Process for preparing an aqueous solution of saccharides and methylcellulose
BR112015024522A8 (pt) 2013-05-14 2019-12-10 Dow Global Technologies Llc éter de celulose esterificado, composição, dispersão sólida, forma de dosagem, invólucro de cápsula e processo para produzir o éter de celulose esterificado
JP6546179B2 (ja) 2014-01-16 2019-07-17 ダウ グローバル テクノロジーズ エルエルシー ３ｄ印刷用支持材料
CN105899591A (zh) 2014-01-16 2016-08-24 陶氏环球技术有限责任公司 增材制造负载材料的回收
WO2015108769A1 (en) 2014-01-16 2015-07-23 Dow Global Technologies Llc Heat moldable ceramic composition containing a hydroxypropyl methylcellulose
BR112016018177A2 (pt) 2014-02-20 2017-08-08 Dow Global Technologies Llc Novos éteres de celulose esterificados de alto peso molecular e homogeneidade
EP3186285B1 (en) 2014-08-27 2022-04-13 Nutrition & Biosciences USA 1, LLC Esterified cellulose ethers of low acetone-insoluble content
ES2634656T3 (es) 2014-09-10 2017-09-28 Ppg Industries Ohio Inc. Líquido de separación acuoso y proceso para retirar el exceso de pintura pulverizada de una cabina de pulverización de pintura
CN107074980A (zh) 2014-10-31 2017-08-18 陶氏环球技术有限责任公司 制备纤维素醚的酯的方法
MX356115B (es) 2014-10-31 2018-05-15 Dow Global Technologies Llc Proceso para producir un succinato de acetato de eter de celulosa.
US10196461B2 (en) 2014-10-31 2019-02-05 Dow Global Technologies Llc Efficient process for preparing an ester of a cellulose ether
MX2017011091A (es) 2015-03-16 2017-11-10 Dow Global Technologies Llc Proceso para preparar un eter de celulosa esterificado en presencia de un acido carboxilico alifatico.
US10759874B2 (en) 2015-03-16 2020-09-01 Dow Global Technologies Llc Gelling esterified cellulose ethers
KR20170128358A (ko) 2015-03-16 2017-11-22 다우 글로벌 테크놀로지스 엘엘씨 낮은 중화도를 갖는 수용성 에스테르화 셀룰로오스 에테르
US20180105608A1 (en) 2015-05-15 2018-04-19 Dow Global Technologies Llc Process for producing esterified cellulose ethers of very high molecular weight and low viscosity
EP3294776B1 (en) 2015-05-15 2020-08-05 Dow Global Technologies LLC Process of preparing a high molecular weight esterified cellulose ether
EP3307839B1 (en) 2015-06-09 2019-02-27 Dow Global Technologies LLC Support materials for 3d printing
KR20180056668A (ko) 2015-09-24 2018-05-29 다우 글로벌 테크놀로지스 엘엘씨 아세트산과 반응 촉매의 존재하에서 셀룰로오스 에테르의 에스테르를 제조하기 위한 방법
EP3216807B2 (en) 2016-03-09 2022-05-18 Shin-Etsu Chemical Co., Ltd. Coating composition containing methyl cellulose, method for producing the same, and solid preparation
WO2017223018A1 (en) 2016-06-23 2017-12-28 Dow Global Technologies Llc Esterified cellulose ethers comprising trimellityl groups
US10947322B2 (en) 2016-06-23 2021-03-16 Nutrition & Biosciences Usa 1, Llc Esterified cellulose ethers comprising phthalyl groups
WO2018039214A1 (en) 2016-08-23 2018-03-01 Dow Global Technologies Llc Esterified cellulose ethers comprising maleyl groups
CN109563176B (zh) 2016-08-23 2021-09-28 陶氏环球技术有限责任公司 邻苯二甲酸乙酸纤维素醚
KR102373750B1 (ko) * 2016-10-06 2022-03-15 신에쓰 가가꾸 고교 가부시끼가이샤 저중합도 셀룰로오스 에테르의 제조 방법
US20210102004A1 (en) 2016-10-18 2021-04-08 Dow Global Technologies Llc Efficient process of preparing an esterified cellulose ether
EP3897728A1 (en) 2018-12-18 2021-10-27 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a hydroxyalkyl methylcellulose
EP3897730A1 (en) 2018-12-18 2021-10-27 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a methylcellulose
EP3897729B8 (en) 2018-12-18 2025-01-22 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a methylcellulose
WO2020131800A1 (en) 2018-12-18 2020-06-25 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising an ethylcellulose
WO2021118917A1 (en) 2019-12-09 2021-06-17 Nutrition & Biosciences Usa 1, Llc Composition comprising a highly substituted hydroxypropyl methylcellulose and a sugar alcohol
JP7414685B2 (ja) * 2020-10-22 2024-01-16 信越化学工業株式会社 解重合されたセルロースエーテルの製造方法
JP7414686B2 (ja) 2020-10-22 2024-01-16 信越化学工業株式会社 解重合されたセルロースエーテルの製造方法
CN117529522A (zh) 2021-04-09 2024-02-06 营养与生物科学美国1有限责任公司 具有高粉末溶解温度的甲基纤维素
CN117440974A (zh) 2021-06-08 2024-01-23 营养与生物科学美国1有限责任公司 用于生产甲基纤维素或羟烷基甲基纤维素的方法
JP2024532260A (ja) 2021-08-26 2024-09-05 ニュートリション・アンド・バイオサイエンシーズ・ユーエスエー・ワン，エルエルシー 新規なヒドロキシアルキルメチルセルロース及びその使用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1679943A (en) * 1925-12-21 1928-08-07 Eastman Kodak Co Process for reducing the viscosity characteristics of cellulose ethers and products thereof
US1943461A (en) * 1930-04-16 1934-01-16 Ici Ltd Cellulose ether and method of making same
JPS4841037B1 (enExample) * 1964-10-26 1973-12-04
GB1296853A (enExample) * 1969-01-31 1972-11-22
US4061859A (en) * 1976-06-14 1977-12-06 The Dow Chemical Company Viscosity reduction of cellulose derivatives

Also Published As

Publication number Publication date
EP0210917A2 (en) 1987-02-04
AU583139B2 (en) 1989-04-20
JPS6225101A (ja) 1987-02-03
DE3675993D1 (de) 1991-01-17
EP0210917A3 (en) 1987-09-02
AU6039086A (en) 1987-01-29
EP0210917B1 (en) 1990-12-05
DE210917T1 (de) 1988-02-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term