MX355026B - Proceso para preparar ester de eter de celulosa. - Google Patents
Proceso para preparar ester de eter de celulosa.Info
- Publication number
- MX355026B MX355026B MX2017005061A MX2017005061A MX355026B MX 355026 B MX355026 B MX 355026B MX 2017005061 A MX2017005061 A MX 2017005061A MX 2017005061 A MX2017005061 A MX 2017005061A MX 355026 B MX355026 B MX 355026B
- Authority
- MX
- Mexico
- Prior art keywords
- cellulose ether
- acid anhydride
- ester
- preparing
- aliphatic monocarboxylic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B13/00—Preparation of cellulose ether-esters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/38—Cellulose; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/32—Cellulose ether-esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/32—Cellulose ether-esters
-
- 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
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Wood Science & Technology (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
La presente invención se refiere a un proceso para producir un éter de celulosa esterificado que comprende la etapa de hacer reaccionar un éter de celulosa con un anhídrido de ácido monocarboxílico alifático y/o un anhídrido de ácido dicarboxílico y con un agente despolimerizante, en donde el éter de celulosa tiene una viscosidad inicial de al menos 500 mPas, medido como una solución al 2% en peso en agua a 20 °C, y la reacción del éter de celulosa con el anhídrido de ácido monocarboxílico alifático y/o el anhídrido de ácido dicarboxílico y con el agente despolimerizante se conduce simultáneamente o en secuencia en un dispositivo de reacción.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462073264P | 2014-10-31 | 2014-10-31 | |
PCT/US2015/056590 WO2016069340A1 (en) | 2014-10-31 | 2015-10-21 | Process for preparing an ester of a cellulose ether |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2017005061A MX2017005061A (es) | 2017-07-05 |
MX355026B true MX355026B (es) | 2018-04-02 |
Family
ID=54478236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2017005061A MX355026B (es) | 2014-10-31 | 2015-10-21 | Proceso para preparar ester de eter de celulosa. |
Country Status (8)
Country | Link |
---|---|
US (1) | US20170335019A1 (es) |
EP (1) | EP3212674B1 (es) |
JP (1) | JP2017533324A (es) |
KR (1) | KR101839295B1 (es) |
CN (1) | CN107074980A (es) |
BR (1) | BR112017008389A2 (es) |
MX (1) | MX355026B (es) |
WO (1) | WO2016069340A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6273076B2 (ja) * | 2014-10-31 | 2018-01-31 | 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効率的な方法 |
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 |
JP7019826B2 (ja) | 2017-10-23 | 2022-02-15 | 京セラ株式会社 | 共通の地理的位置依存制御情報を用いる複数の装置のための複数のニューメロロジー(numerologies)によるデータ送信 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2912430A (en) * | 1954-12-07 | 1959-11-10 | Henkel & Compagnie G M B H | Method of preparing esters of cellulose ether carboxylic acids |
US3497496A (en) * | 1967-12-21 | 1970-02-24 | Eastman Kodak Co | Process for reducing the viscosity of cellulose ethers |
US3629237A (en) * | 1968-09-12 | 1971-12-21 | Shinetsu Chemical Co | Compositions useful as enteric coatings and method for preparing acid phthalates of cellulose ethers for them |
DE2436843A1 (de) * | 1974-07-31 | 1976-02-12 | Akzo Gmbh | Stoffgemisch aus oxydationsprodukten von cellulose, hemicellulosen und lignin |
US4226981A (en) | 1977-09-28 | 1980-10-07 | Shin-Etsu Chemical Co., Ltd. | Ether-ester derivatives of cellulose and their applications |
DE2917104A1 (de) | 1979-04-27 | 1980-11-06 | Hoechst Ag | Verfahren zur viskositaetserniedrigung von celluloseethern durch ozon und seine verwendung |
JPS6225101A (ja) | 1985-07-24 | 1987-02-03 | Shin Etsu Chem Co Ltd | 低重合度セルロ−スエ−テルの製造方法 |
JPS6281402A (ja) | 1985-10-07 | 1987-04-14 | Shin Etsu Chem Co Ltd | セルロ−スエ−テル酸性ジカルボン酸エステルの製造方法 |
JP3149122B2 (ja) | 1994-11-07 | 2001-03-26 | 信越化学工業株式会社 | 固形腸溶製剤のコーティング用基剤 |
US5723151A (en) * | 1995-11-06 | 1998-03-03 | Eastman Chemical Company | Cellulose acetate phthalate enteric coating compositions |
US6261218B1 (en) * | 1998-12-01 | 2001-07-17 | The Dow Chemical Company | Process and apparatus for making low molecular weight cellulose ethers |
DE19941893A1 (de) * | 1999-09-03 | 2001-03-08 | Clariant Gmbh | Niederviskose, heisswasser-flockbare Celluloseether, Verfahren zu deren Herstellung durch Depolymerisation sowie deren Verwendung |
DE10141680B4 (de) | 2001-08-25 | 2004-02-26 | Clariant Gmbh | Verfahren zur Herstellung niederviskoser Celluloseether durch sauer-oxidativen Abbau von gemahlenen und getrockneten Celluloseethern |
MXPA06013891A (es) | 2004-05-28 | 2007-01-26 | Pfizer Prod Inc | Composiciones farmaceuticas con comportamiento potenciado. |
CN102807791B (zh) * | 2007-11-09 | 2014-10-15 | 联合碳化化学品及塑料技术公司 | 制备非常低粘度的纤维素醚的方法和产品 |
JP5792807B2 (ja) * | 2010-06-14 | 2015-10-14 | ダウ グローバル テクノロジーズ エルエルシー | アセテートおよびサクシネートの置換が向上されたヒドロキシプロピルメチルセルロースアセテートサクシネート |
EP2831121B1 (en) | 2012-03-27 | 2018-10-10 | Dow Global Technologies LLC | A process of preparing an ester of a cellulose ether |
JP6254593B2 (ja) * | 2012-08-24 | 2017-12-27 | ダウ グローバル テクノロジーズ エルエルシー | カルボン酸アルカリ金属塩の存在下でセルロースエーテルのエステルを調製する方法 |
KR102171570B1 (ko) * | 2012-09-25 | 2020-10-29 | 다우 글로벌 테크놀로지스 엘엘씨 | 높은 벌크 밀도, 우수한 유동성 및/또는 우수한 냉수 분산성 및 약한 용액 색을 갖는 셀룰로스 유도체의 제조 방법 |
EP2964203B1 (en) * | 2013-03-07 | 2019-04-03 | Dow Global Technologies LLC | Novel esterified cellulose ethers of very high molecular weight |
WO2015041973A1 (en) * | 2013-09-23 | 2015-03-26 | Dow Global Technologies Llc | A process for recovering an esterified cellulose ether from a reaction product mixture |
CN104558208A (zh) * | 2013-10-31 | 2015-04-29 | 安徽山河药用辅料股份有限公司 | 一种制备醋酸羟丙甲纤维素琥珀酸酯的方法 |
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 |
JP6273076B2 (ja) * | 2014-10-31 | 2018-01-31 | 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効率的な方法 |
-
2015
- 2015-10-21 MX MX2017005061A patent/MX355026B/es active IP Right Grant
- 2015-10-21 CN CN201580056850.6A patent/CN107074980A/zh active Pending
- 2015-10-21 EP EP15791420.1A patent/EP3212674B1/en not_active Not-in-force
- 2015-10-21 KR KR1020177012586A patent/KR101839295B1/ko active IP Right Grant
- 2015-10-21 US US15/521,065 patent/US20170335019A1/en not_active Abandoned
- 2015-10-21 WO PCT/US2015/056590 patent/WO2016069340A1/en active Application Filing
- 2015-10-21 BR BR112017008389A patent/BR112017008389A2/pt not_active Application Discontinuation
- 2015-10-21 JP JP2017523474A patent/JP2017533324A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
MX2017005061A (es) | 2017-07-05 |
EP3212674B1 (en) | 2018-08-22 |
US20170335019A1 (en) | 2017-11-23 |
EP3212674A1 (en) | 2017-09-06 |
KR20170060157A (ko) | 2017-05-31 |
KR101839295B1 (ko) | 2018-04-27 |
JP2017533324A (ja) | 2017-11-09 |
CN107074980A (zh) | 2017-08-18 |
WO2016069340A1 (en) | 2016-05-06 |
BR112017008389A2 (pt) | 2018-02-20 |
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Legal Events
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FG | Grant or registration |