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 DE8686401621T priority patent/DE3675993D1/de
Priority to AU60390/86A priority patent/AU583139B2/en
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
DE8686401621T DE3675993D1 (de) 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.
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

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 (cg-RX-API-DMAC7.html) 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 (cg-RX-API-DMAC7.html)
JP (1) JPS6225101A (cg-RX-API-DMAC7.html)
AU (1) AU583139B2 (cg-RX-API-DMAC7.html)
DE (2) DE3675993D1 (cg-RX-API-DMAC7.html)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2071488C (en) * 1990-08-24 1996-05-07 Kazuto Kobayashi Base for film-coating pharmaceuticals and method for preparing same
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
CN101001881A (zh) * 2005-08-22 2007-07-18 信越化学工业株式会社 溶解度提高的纤维素衍生物的制造方法
EP2032608B1 (en) * 2006-06-14 2011-08-10 Dow Global Technologies LLC Process for reducing the average molecular weight of cellulose ethers
EP2627676B1 (en) 2010-10-12 2017-03-08 Dow Global Technologies LLC Novel cellulose ethers and their use
KR101775414B1 (ko) 2011-07-27 2017-09-19 다우 글로벌 테크놀로지스 엘엘씨 셀룰로스 에테르로부터 알킬렌 할로게노하이드린을 제거하는 방법
WO2013025397A1 (en) 2011-08-12 2013-02-21 Dow Global Technologies Llc Optical retardation film and method of manufacturing
US9216191B2 (en) 2011-10-19 2015-12-22 Dow Global Technologies Llc Methods and composition for inducing satiety
US9757465B2 (en) 2012-04-11 2017-09-12 Dow Global Technologies Llc Composition comprising an organic diluent and a cellulose ether
KR20140146181A (ko) 2012-04-11 2014-12-24 다우 글로벌 테크놀로지스 엘엘씨 특정 치환체 분포를 갖는 에스테르화된 셀룰로즈 에테르
WO2013154981A1 (en) 2012-04-11 2013-10-17 Dow Global Technologies Llc Melt-extruded composition comprising a cellulose ether
EP2874607B1 (en) 2012-07-17 2017-05-31 Dow Global Technologies LLC Solid dispersion comprising a highly substituted hydroxyalkyl methylcellulose
WO2014031418A1 (en) 2012-08-24 2014-02-27 Dow Global Technologies Llc Partially cross-linked esterified cellulose ethers
KR102108813B1 (ko) 2012-08-24 2020-05-12 다우 글로벌 테크놀로지스 엘엘씨 지방족 카복실산의 존재하의 셀룰로스 에테르의 에스테르의 제조 방법
CN104797604B (zh) 2012-08-24 2018-03-06 陶氏环球技术有限责任公司 在碱金属羧酸盐和脂族羧酸的存在下制备酯化纤维素醚的方法
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
EP2986167B1 (en) 2013-04-12 2017-07-19 Dow Global Technologies LLC Process for preparing an aqueous solution of saccharides and methylcellulose
KR102347262B1 (ko) 2013-04-12 2022-01-06 뉴트리션 ＆ 바이오사이언시즈 유에스에이 1, 엘엘씨 메틸셀룰로스 수용액의 제조 방법
WO2014168914A1 (en) 2013-04-12 2014-10-16 Dow Global Technologies Llc Water-soluble polysaccharides of improved palatability
EP2997046B1 (en) 2013-05-14 2019-09-25 Dow Global Technologies LLC Cellulose ethers esterified with dicarboxylic acids
CN105899473B (zh) 2014-01-16 2017-08-29 陶氏环球技术有限责任公司 包含羟丙基甲基纤维素的热可塑性陶瓷组合物
CA2936357C (en) 2014-01-16 2022-04-26 Dow Global Technologies Llc Support materials for 3d printing
JP6574187B2 (ja) 2014-01-16 2019-09-11 ダウ グローバル テクノロジーズ エルエルシー 付加製造支持材料の回収
EP3107940B1 (en) 2014-02-20 2019-08-07 Dow Global Technologies LLC Novel esterified cellulose ethers of high molecular weight and homogeneity
BR112017003191A2 (pt) 2014-08-27 2017-11-28 Dow Global Technologies Llc éteres de celulose esterificados com baixo teor de insolúveis em acetona
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
BR112017008366A2 (pt) 2014-10-31 2018-02-20 Dow Global Technologies Llc processo eficiente para preparar um éster de um éter de celulose
MX356115B (es) 2014-10-31 2018-05-15 Dow Global Technologies Llc Proceso para producir un succinato de acetato de eter de celulosa.
EP3212674B1 (en) 2014-10-31 2018-08-22 Dow Global Technologies LLC Process for preparing an ester of a cellulose ether
KR20170128358A (ko) 2015-03-16 2017-11-22 다우 글로벌 테크놀로지스 엘엘씨 낮은 중화도를 갖는 수용성 에스테르화 셀룰로오스 에테르
EP3270972B1 (en) 2015-03-16 2019-01-09 Dow Global Technologies LLC Process for preparing an esterified cellulose ether in the presence of an aliphatic carboxylic acid
WO2016148976A1 (en) 2015-03-16 2016-09-22 Dow Global Technologies Llc Gelling esterified cellulose ethers
CN107567463A (zh) 2015-05-15 2018-01-09 陶氏环球技术有限责任公司 制备高分子量酯化纤维素醚的工艺
KR20180008524A (ko) 2015-05-15 2018-01-24 다우 글로벌 테크놀로지스 엘엘씨 초고분자량 및 저점도의 에스테르화된 셀룰로오스 에테르의 제조 방법
WO2016200673A1 (en) 2015-06-09 2016-12-15 Dow Global Technologies Llc Support materials for 3d printing
JP6426878B2 (ja) 2015-09-24 2018-11-21 ダウ グローバル テクノロジーズ エルエルシー 酢酸及び反応触媒の存在下でセルロースエーテルのエステルを調製するためのプロセス
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
CN109312001B (zh) 2016-06-23 2020-03-03 陶氏环球技术有限责任公司 包含邻苯二甲酰基的酯化纤维素醚
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
US10513599B2 (en) 2016-08-23 2019-12-24 Global Dow Technologies LLC Cellulose ether acetate phthalates
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.
US20220047498A1 (en) 2018-12-18 2022-02-17 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a methylcellulose
WO2020131780A1 (en) 2018-12-18 2020-06-25 Ddp Specialty Electronics Materials Us, Inc. A sustained release composition comprising a methylcellulose
JP7526727B2 (ja) 2018-12-18 2024-08-01 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 ヒドロキシアルキルメチルセルロースを含む徐放性組成物
WO2020131800A1 (en) 2018-12-18 2020-06-25 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising an ethylcellulose
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
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
WO2022214591A1 (en) 2021-04-09 2022-10-13 Nutrition & Biosciences Usa 1, Llc A methylcellulose with high powder dissolution temperature
WO2022258512A1 (en) 2021-06-08 2022-12-15 Nutrition & Biosciences Usa 1, Llc A process for producing a methylcellulose or hydroxyalkyl methylcellulose
CN118055952A (zh) 2021-08-26 2024-05-17 营养与生物科学美国1有限责任公司 新颖的羟烷基甲基纤维素及其用途

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 (cg-RX-API-DMAC7.html) * 1964-10-26 1973-12-04
GB1296853A (cg-RX-API-DMAC7.html) * 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
AU583139B2 (en) 1989-04-20
EP0210917B1 (en) 1990-12-05
JPS6225101A (ja) 1987-02-03
DE210917T1 (de) 1988-02-04
EP0210917A2 (en) 1987-02-04
EP0210917A3 (en) 1987-09-02
DE3675993D1 (de) 1991-01-17
AU6039086A (en) 1987-01-29

Similar Documents

Publication Publication Date Title
JPH0476361B2 (cg-RX-API-DMAC7.html)
US3839319A (en) Hydroxypropyl methylcellulose ethers and method of preparation
US3391135A (en) Process for the manufacture of low molecular weight cellulose derivatives
US7026471B2 (en) Purification method of hydroxypropylmethyl cellulose phthalate
US20040242862A1 (en) Method for producing a cellulose ether of low viscosity by means of acid oxidative decomposition of ground and dried cellulose ethers
TWI612061B (zh) 低聚合度纖維素醚之製造方法及由此所製造之纖維素醚
ES487214A1 (es) Procedimiento para la obtencion de polvos para lavado porta-dores de aclaradores opticos
JPS609041B2 (ja) セルロ−ス誘導体の粘度減少法の改良法
ES8100675A1 (es) Procedimiento para la produccion de polvos para lavados por-tadores de aclaradores opticos
JPH10158302A (ja) ヒドロキシプロピルメチルセルロースの製造方法
KR20020033784A (ko) 온수-응집가능한 저점성 셀룰로스 에테르, 및 그의제조방법 및 용도
JP3002916B2 (ja) セルロース混合エーテルの製造法
JP4880234B2 (ja) セルロース誘導体の製造方法
JPS5975903A (ja) 水溶性ナトリウムカルボキシメチルセルロ−スの製造方法
CN106366213B (zh) O-羧甲基壳聚糖的工业化制备方法
EP3567058A1 (en) Hypromellose phthalate and method for producing the same
JPS609522B2 (ja) エチルカルボキシメチルセルロ−スの製造方法
JPH10259201A (ja) 低置換度ヒドロキシプロピルセルロース、その組成物及びその製造方法
JPS609521B2 (ja) ヒドロキシプロピルセルロ−スの製造方法
JPH01123801A (ja) セルロースエーテルの製造法
CN110292567B (zh) 一种阿奇霉素胶囊的制备方法
SU990762A1 (ru) Способ получени аммониевой соли карбоксиметил-целлюлозы
SU1648952A1 (ru) Способ получени порошковой целлюлозы
JPH0372047B2 (cg-RX-API-DMAC7.html)
RU2196778C1 (ru) Способ получения гидроксиалкиловых эфиров целлюлозы

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term