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 DE8686401621T priority patent/DE3675993D1/de
Priority to EP19860401621 priority patent/EP0210917B1/en
Priority to AU60390/86A priority patent/AU583139B2/en
Priority to DE1986401621 priority patent/DE210917T1/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)
  • 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)
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
DE8686401621T DE3675993D1 (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
DE1986401621 DE210917T1 (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 (cg-RX-API-DMAC10.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-DMAC10.html)
JP (1) JPS6225101A (cg-RX-API-DMAC10.html)
AU (1) AU583139B2 (cg-RX-API-DMAC10.html)
DE (2) DE3675993D1 (cg-RX-API-DMAC10.html)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
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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
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
KR101860707B1 (ko) 2010-10-12 2018-07-02 다우 글로벌 테크놀로지스 엘엘씨 신규 셀룰로스 에테르 및 이들의 용도
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
ES2811082T3 (es) 2011-10-19 2021-03-10 Dow Global Technologies Llc Métodos y composiciones para inducir saciedad
WO2013154607A1 (en) 2012-04-11 2013-10-17 Dow Global Technologies Llc Esterified cellulose ethers having a specific substituent distribution
CN104364329B (zh) 2012-04-11 2016-08-17 陶氏环球技术有限责任公司 包含有机稀释剂和纤维素醚的组合物
WO2013154981A1 (en) 2012-04-11 2013-10-17 Dow Global Technologies Llc Melt-extruded composition comprising a cellulose ether
CN104602673B (zh) 2012-07-17 2017-11-24 陶氏环球技术有限责任公司 包含高度取代的羟基烷基甲基纤维素的固体分散体
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.
KR102108814B1 (ko) 2012-08-24 2020-05-12 다우 글로벌 테크놀로지스 엘엘씨 알칼리 금속 카복실레이트 및 지방족 카복실산의 존재하의 에스테르화된 셀룰로스 에테르의 제조 방법
BR112015002058B1 (pt) 2012-08-24 2020-11-17 Dow Global Technologies Llc éter de celulose esterificado parcialmente reticulado, composição, dispersão sólida, processo para produzir a dispersão sólida, forma de dosagem e invólucro de cápsula
JP6039812B2 (ja) 2012-09-25 2016-12-07 ダウ グローバル テクノロジーズ エルエルシー 冷水中で高い嵩密度、良好な流動性、および／または分散性、ならびに低い溶液色を有するセルロース誘導体の製造方法
US9820498B2 (en) 2013-04-12 2017-11-21 Dow Global Technologies Llc Process for preparing an aqueous solution of saccharides and methylcellulose
KR20150140835A (ko) 2013-04-12 2015-12-16 다우 글로벌 테크놀로지스 엘엘씨 개선된 식미의 수용성 다당류
WO2014168915A1 (en) 2013-04-12 2014-10-16 Dow Global Technologies Llc Process for preparing an aqueous solution of a methylcellulose
WO2014186185A1 (en) 2013-05-14 2014-11-20 Dow Global Technologies Llc Cellulose ethers esterified with dicarboxylic acids
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
WO2015108768A1 (en) 2014-01-16 2015-07-23 Dow Global Technologies Llc Support materials for 3d printing
EP3094609B1 (en) 2014-01-16 2018-12-05 Dow Global Technologies LLC Heat moldable ceramic composition containing a hydroxypropyl methylcellulose
EP3107940B1 (en) 2014-02-20 2019-08-07 Dow Global Technologies LLC Novel esterified cellulose ethers of high molecular weight and homogeneity
US10526421B2 (en) 2014-08-27 2020-01-07 Dow Global Technologies Llc Esterified cellulose ethers of low acetone-insoluble content
EP3447096B1 (en) 2014-09-10 2020-11-04 PPG Industries Ohio, Inc. Aqueous separation liquid and process for removing paint overspray from a paint spray booth
KR101839294B1 (ko) 2014-10-31 2018-04-27 다우 글로벌 테크놀로지스 엘엘씨 셀룰로오스 에테르 아세테이트 석시네이트의 생산 방법
KR101839296B1 (ko) 2014-10-31 2018-03-19 다우 글로벌 테크놀로지스 엘엘씨 셀룰로오스 에테르의 에스테르를 제조하기 위한 효율적인 방법
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
US20180030158A1 (en) 2015-03-16 2018-02-01 Dow Global Technologies Llc Process for preparing an esterified cellulose ether in the presence of an aliphatic carboxylic acid
BR112017018367A2 (pt) 2015-03-16 2018-04-10 Dow Global Technologies Llc gelificação de éteres de celulose esterificados
WO2016148977A1 (en) 2015-03-16 2016-09-22 Dow Global Technologies Llc Water-soluble esterified cellulose ethers having a low degree of neutralization
KR20180008524A (ko) 2015-05-15 2018-01-24 다우 글로벌 테크놀로지스 엘엘씨 초고분자량 및 저점도의 에스테르화된 셀룰로오스 에테르의 제조 방법
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
CA2987627C (en) 2015-06-09 2023-09-19 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
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
BR112019003048A2 (pt) 2016-08-23 2019-05-21 Dow Global Technologies Llc ftalato de acetato de éter de celulose
WO2018039214A1 (en) 2016-08-23 2018-03-01 Dow Global Technologies Llc Esterified cellulose ethers comprising maleyl groups
KR102373750B1 (ko) * 2016-10-06 2022-03-15 신에쓰 가가꾸 고교 가부시끼가이샤 저중합도 셀룰로오스 에테르의 제조 방법
WO2018075420A1 (en) 2016-10-18 2018-04-26 Dow Global Technologies Llc Efficient process of preparing an esterified cellulose ether
US20220031623A1 (en) 2018-12-18 2022-02-03 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
JP7535520B2 (ja) 2018-12-18 2024-08-16 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 メチルセルロースを含む徐放性組成物
WO2020131795A1 (en) 2018-12-18 2020-06-25 DDP Specialty Electronic Materials US, Inc. A sustained release composition comprising a hydroxyalkyl methylcellulose
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
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
EP4392464A1 (en) 2021-08-26 2024-07-03 Nutrition & Biosciences USA 1, LLC Novel hydroxyalkyl methylcellulose and its use

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-DMAC10.html) * 1964-10-26 1973-12-04
GB1296853A (cg-RX-API-DMAC10.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
DE3675993D1 (de) 1991-01-17
EP0210917B1 (en) 1990-12-05
JPS6225101A (ja) 1987-02-03
EP0210917A3 (en) 1987-09-02
AU583139B2 (en) 1989-04-20
EP0210917A2 (en) 1987-02-04
DE210917T1 (de) 1988-02-04
AU6039086A (en) 1987-01-29

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term