AU583139B2 - A method for the preparation of a cellulose ether having a decreased degree of polymerization - Google Patents

A method for the preparation of a cellulose ether having a decreased degree of polymerization

Info

Publication number
AU583139B2
AU583139B2 AU60390/86A AU6039086A AU583139B2 AU 583139 B2 AU583139 B2 AU 583139B2 AU 60390/86 A AU60390/86 A AU 60390/86A AU 6039086 A AU6039086 A AU 6039086A AU 583139 B2 AU583139 B2 AU 583139B2
Authority
AU
Australia
Prior art keywords
polymerization
preparation
cellulose ether
decreased degree
decreased
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.)
Ceased
Application number
AU60390/86A
Other languages
English (en)
Other versions
AU6039086A (en
Inventor
Tohru Chiba
Atsushi Hatayama
Hiroaki Muto
Yuichi Nishiyama
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=AU583139(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
Publication of AU6039086A publication Critical patent/AU6039086A/en
Application granted granted Critical
Publication of AU583139B2 publication Critical patent/AU583139B2/en
Anticipated expiration legal-status Critical
Ceased 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)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AU60390/86A 1985-07-24 1986-07-21 A method for the preparation of a cellulose ether having a decreased degree of polymerization Ceased AU583139B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60-163549 1985-07-24
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
AU6039086A AU6039086A (en) 1987-01-29
AU583139B2 true AU583139B2 (en) 1989-04-20

Family

ID=15776006

Family Applications (1)

Application Number Title Priority Date Filing Date
AU60390/86A Ceased AU583139B2 (en) 1985-07-24 1986-07-21 A method for the preparation of a cellulose ether having a decreased degree of polymerization

Country Status (4)

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

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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
EP1878752B1 (en) * 2005-08-22 2014-02-26 Shin-Etsu Chemical Co., Ltd. Process for producing cellulose derivative with improved solubility
KR101404282B1 (ko) * 2006-06-14 2014-06-05 다우 글로벌 테크놀로지스 엘엘씨 셀룰로오스 에테르의 평균 분자량 감소 방법
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CN103687652B (zh) 2011-07-27 2015-07-15 陶氏环球技术有限责任公司 从纤维素醚中除去邻亚烷卤醇的方法
WO2013025397A1 (en) 2011-08-12 2013-02-21 Dow Global Technologies Llc Optical retardation film and method of manufacturing
KR20140077976A (ko) 2011-10-19 2014-06-24 다우 글로벌 테크놀로지스 엘엘씨 포만감을 유발하는 방법 및 조성물
JP5731723B2 (ja) 2012-04-11 2015-06-10 ダウ グローバル テクノロジーズ エルエルシー セルロースエーテルを含む溶融押出し組成物
EP2836559B1 (en) 2012-04-11 2016-05-25 Dow Global Technologies LLC Composition comprising an organic diluent and a cellulose ether
EP2836205B1 (en) 2012-04-11 2016-10-19 Dow Global Technologies LLC Esterified cellulose ethers having a specific substituent distribution
KR102160903B1 (ko) 2012-07-17 2020-10-05 다우 글로벌 테크놀로지스 엘엘씨 고도로 치환된 하이드록시알킬 메틸셀룰로즈를 포함하는 고체 분산물
US20150218197A1 (en) 2012-08-24 2015-08-06 Dow Global Technologies Llc Process for preparing an ester of a cellulose ether in the presence of an aliphatic carboxylic acid
EP2888289B1 (en) 2012-08-24 2019-08-07 Dow Global Technologies LLC Partially cross-linked esterified cellulose ethers
JP6166372B2 (ja) 2012-08-24 2017-07-19 ダウ グローバル テクノロジーズ エルエルシー アルカリ金属カルボン酸塩および脂肪族カルボン酸の存在下でエステル化セルロースエーテルを調製するためのプロセス
US9340624B2 (en) 2012-09-25 2016-05-17 Dow Global Technologies Llc Process for producing cellulose derivatives of high bulk density, good flowability and/or dispersibility in cold water as well as low solution color
US9826768B2 (en) 2013-04-12 2017-11-28 Dow Global Technologies Llc Process for preparing an aqueous solution of a methylcellulose
BR112015019580A2 (pt) 2013-04-12 2017-07-18 Dow Global Technologies Llc processo para preparar uma solução aquosa, solução aquosa, medicamento, alimento, ingrediente de alimento ou suplemento alimentício e método para reduzir a assimilação calórica
BR112015019575A2 (pt) 2013-04-12 2017-07-18 Dow Global Technologies Llc polissacarídeo solúvel em água livre de amido, alimento, ingrediente de alimento, ou suplemento alimentício e método para melhorar a palatabilidade de um polissacarídeo solúvel em água livre de amido
WO2014186185A1 (en) 2013-05-14 2014-11-20 Dow Global Technologies Llc Cellulose ethers esterified with dicarboxylic acids
US10189748B2 (en) 2014-01-16 2019-01-29 Dow Global Technologies Llc Heat moldable ceramic composition
KR102348393B1 (ko) 2014-01-16 2022-01-11 다우 글로벌 테크놀로지스 엘엘씨 적층 제조용 지지 물질의 회수
US10259921B2 (en) 2014-01-16 2019-04-16 Dow Global Technologies Llc Support materials for 3D printing
JP2017505847A (ja) 2014-02-20 2017-02-23 ダウ グローバル テクノロジーズ エルエルシー 新規の高分子量及び高均一性のエステル化セルロースエーテル
JP7044550B2 (ja) 2014-08-27 2022-03-30 ニュートリション アンド バイオサイエンシズ ユーエスエー １，リミティド ライアビリティ カンパニー アセトン不溶性含有量の低いエステル化セルロースエーテル
EP2995657B1 (en) 2014-09-10 2017-06-14 PPG Industries Ohio Inc. Aqueous separation liquid and process for removing paint overspray from a paint spray booth
JP2017533324A (ja) 2014-10-31 2017-11-09 ダウ グローバル テクノロジーズ エルエルシー セルロースエーテルのエステルを調製するための方法
CN107074979B (zh) 2014-10-31 2019-07-19 陶氏环球技术有限责任公司 用于产生乙酸纤维素醚丁二酸酯的方法
MX355025B (es) 2014-10-31 2018-04-02 Dow Global Technologies Llc Proceso eficiente para preparar ester de eter de celulosa.
US10214594B2 (en) 2015-03-16 2019-02-26 Dow Global Technologies Llc Water-soluble esterified cellulose ethers having a low degree of neutralization
KR20170128349A (ko) 2015-03-16 2017-11-22 다우 글로벌 테크놀로지스 엘엘씨 지방족 카복실산의 존재하에서의 에스테르화된 셀룰로오스 에테르의 제조 방법
EP3270970B1 (en) 2015-03-16 2019-01-09 Dow Global Technologies LLC Gelling esterified cellulose ethers
EP3294776B1 (en) 2015-05-15 2020-08-05 Dow Global Technologies LLC Process of preparing a high molecular weight esterified cellulose ether
KR20180008524A (ko) 2015-05-15 2018-01-24 다우 글로벌 테크놀로지스 엘엘씨 초고분자량 및 저점도의 에스테르화된 셀룰로오스 에테르의 제조 방법
CA2987627C (en) 2015-06-09 2023-09-19 Dow Global Technologies Llc Support materials for 3d printing
WO2017053337A1 (en) 2015-09-24 2017-03-30 Dow Global Technologies Llc Process for preparing an ester of a cellulose ether in the presence of acetic acid and a reaction catalyst
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
BR112018074763A2 (pt) 2016-06-23 2019-03-06 Dow Global Technologies Llc éteres de celulose esterificados que compreendem grupos ftalila
WO2017223018A1 (en) 2016-06-23 2017-12-28 Dow Global Technologies Llc Esterified cellulose ethers comprising trimellityl groups
WO2018039214A1 (en) 2016-08-23 2018-03-01 Dow Global Technologies Llc Esterified cellulose ethers comprising maleyl groups
BR112019003048A2 (pt) 2016-08-23 2019-05-21 Dow Global Technologies Llc ftalato de acetato de éter de celulose
KR102373750B1 (ko) * 2016-10-06 2022-03-15 신에쓰 가가꾸 고교 가부시끼가이샤 저중합도 셀룰로오스 에테르의 제조 방법
MX2019004166A (es) 2016-10-18 2019-07-15 Dow Global Technologies Llc Proceso eficaz de preparacion de un eter de celulosa esterificado.
US20220088037A1 (en) 2018-12-18 2022-03-24 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a hydroxyalkyl methylcellulose
WO2020131780A1 (en) 2018-12-18 2020-06-25 Ddp Specialty Electronics 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
EP3897730A1 (en) 2018-12-18 2021-10-27 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a methylcellulose
JP7767284B2 (ja) 2019-12-09 2025-11-11 ニュートリション アンド バイオサイエンシス ユーエスエー １，エルエルシー 高度置換ヒドロキシプロピルメチルセルロース及び糖アルコールを含む組成物
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
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
WO2022214591A1 (en) 2021-04-09 2022-10-13 Nutrition & Biosciences Usa 1, Llc A methylcellulose with high powder dissolution temperature
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
KR102735401B1 (ko) 2021-08-26 2024-11-29 뉴트리션 ＆ 바이오사이언시즈 유에스에이 1, 엘엘씨 신규 하이드록시알킬 메틸셀룰로스 및 이의 용도

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1049270A (en) * 1969-01-31 1971-07-22 Imperial Chemical Industries Limited Qaueous solutions of cellulose ethers
US4061859A (en) * 1976-06-14 1977-12-06 The Dow Chemical Company Viscosity reduction of cellulose derivatives

Family Cites Families (3)

* 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 (https=) * 1964-10-26 1973-12-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1049270A (en) * 1969-01-31 1971-07-22 Imperial Chemical Industries Limited Qaueous solutions of cellulose ethers
US4061859A (en) * 1976-06-14 1977-12-06 The Dow Chemical Company Viscosity reduction of cellulose derivatives

Also Published As

Publication number Publication date
EP0210917B1 (en) 1990-12-05
AU6039086A (en) 1987-01-29
DE210917T1 (de) 1988-02-04
EP0210917A2 (en) 1987-02-04
JPS6225101A (ja) 1987-02-03
EP0210917A3 (en) 1987-09-02
JPH0476361B2 (https=) 1992-12-03
DE3675993D1 (de) 1991-01-17

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