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MX2017011092A - Proceso para fraccionar un eter esterificado de celulosa. - Google Patents

Proceso para fraccionar un eter esterificado de celulosa.

Info

Publication number
MX2017011092A
MX2017011092A MX2017011092A MX2017011092A MX2017011092A MX 2017011092 A MX2017011092 A MX 2017011092A MX 2017011092 A MX2017011092 A MX 2017011092A MX 2017011092 A MX2017011092 A MX 2017011092A MX 2017011092 A MX2017011092 A MX 2017011092A
Authority
MX
Mexico
Prior art keywords
cellulose ether
esterified cellulose
fractionating
aqueous liquid
cooh
Prior art date
Application number
MX2017011092A
Other languages
English (en)
Inventor
Petermann Oliver
Sprehe Matthias
Brackhagen Meinolf
Knarr Matthias
Original Assignee
Dow Global Technologies Llc
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
Application filed by Dow Global Technologies Llc filed Critical Dow Global Technologies Llc
Publication of MX2017011092A publication Critical patent/MX2017011092A/es

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
    • 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
    • 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
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/141—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers
    • A61K9/146—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers with organic macromolecular compounds
    • 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
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
    • 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
    • C08B11/22—Isolation
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/08—Fractionation of cellulose, e.g. separation of cellulose crystallites
    • 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
    • C08L1/26—Cellulose ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Analytical Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicinal Preparation (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Un proceso para fraccionar un éter esterificado de celulosa que comprende grupos de la fórmula -C(O)-R-COOH, en donde R es un grupo de hidrocarburo divalente, que comprende las etapas de a) mezclar el éter esterificado de celulosa que comprende grupos de la fórmula -C(O)-R-COOH con un líquido acuoso y ajustar la temperatura de la mezcla resultante a menos de 10°C para disolver una porción del éter esterificado de celulosa en el líquido acuoso, b) separar la porción no disuelta del éter esterificado de celulosa del resto de la mezcla, y c) recuperar o eliminar el éter esterificado de celulosa que se disuelve en el líquido acuoso.
MX2017011092A 2015-03-16 2016-03-08 Proceso para fraccionar un eter esterificado de celulosa. MX2017011092A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562133505P 2015-03-16 2015-03-16
PCT/US2016/021322 WO2016148975A1 (en) 2015-03-16 2016-03-08 A process for fractionating an esterified cellulose ether

Publications (1)

Publication Number Publication Date
MX2017011092A true MX2017011092A (es) 2017-11-10

Family

ID=55590147

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017011092A MX2017011092A (es) 2015-03-16 2016-03-08 Proceso para fraccionar un eter esterificado de celulosa.

Country Status (8)

Country Link
US (2) US20180030157A1 (es)
EP (1) EP3270969B1 (es)
JP (1) JP6749929B2 (es)
KR (1) KR20170128370A (es)
CN (1) CN107406520B (es)
BR (1) BR112017018076A2 (es)
MX (1) MX2017011092A (es)
WO (1) WO2016148975A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102490265B1 (ko) * 2016-11-02 2023-01-20 신에쓰 가가꾸 고교 가부시끼가이샤 히프로멜로오스아세트산에스테르숙신산에스테르 및 제조 방법
KR20190126318A (ko) * 2017-03-17 2019-11-11 다우 글로벌 테크놀로지스 엘엘씨 반응 생성 혼합물로부터 에스테르화 셀룰로스 에테르를 회수하는 공정

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107005A (en) * 1937-02-05 1938-02-01 Dow Chemical Co Cellulose ether recovery
US3435027A (en) 1965-12-13 1969-03-25 Hercules Inc Cellulose ether-esters and process
US4226981A (en) 1977-09-28 1980-10-07 Shin-Etsu Chemical Co., Ltd. Ether-ester derivatives of cellulose and their applications
US4365060A (en) 1979-04-28 1982-12-21 Shin-Etsu Chemical Co. Ltd. Enterosoluble capsules
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
ATE409462T1 (de) 2004-05-28 2008-10-15 Pfizer Prod Inc Pharmazeutische zusammensetzungen mit verbesserter leistung enthaltend ein hpmca polymer
WO2013148154A1 (en) 2012-03-27 2013-10-03 Dow Global Technologies Llc A process of preparing an ester of a cellulose ether
KR101512478B1 (ko) * 2012-06-25 2015-04-16 김창호 전원 어댑터를 이용하는 전자제품의 대기전력 차단 장치
BR112015002056A2 (pt) * 2012-08-24 2017-07-04 Dow Global Technologies Llc éter de celulose esterificado, composição, dispersão sólida, processo para produzir a dispersão sólida, forma de dosagem e invólucro de cápsula
BR112015002055A2 (pt) * 2012-08-24 2017-07-04 Dow Global Technologies Llc acetato succinato de hidroxialquil metil celulose, composição, dispersão sólida, processo para produzir uma dispersão sólida, forma de dosagem e cápsula de envoltório
CN104755503B (zh) * 2012-08-24 2018-03-06 陶氏环球技术有限责任公司 在脂族羧酸的存在下制备纤维素醚的酯的方法
CN105025887B (zh) * 2013-03-07 2017-07-28 陶氏环球技术有限责任公司 新颖极低粘度酯化纤维素醚
EP2964203B1 (en) * 2013-03-07 2019-04-03 Dow Global Technologies LLC Novel esterified cellulose ethers of very high molecular weight
BR112015019354A2 (pt) * 2013-03-07 2017-07-18 Dow Global Technologies Llc acetato succinato de hidroxipropil metilcelulose, composição, dispersão sólida, forma de dosagem, envoltório de cápsula e processo para produzir um acetato succinato de hidroxipropil metilcelulose
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
US10759873B2 (en) * 2014-02-20 2020-09-01 Dow Global Technologies Llc Esterified cellulose ethers of high molecular weight and homogeneity
CN104311674A (zh) * 2014-10-17 2015-01-28 广东东阳光药业有限公司 一种混合酯的制备方法

Also Published As

Publication number Publication date
US20220056157A1 (en) 2022-02-24
EP3270969B1 (en) 2019-01-23
EP3270969A1 (en) 2018-01-24
JP2018508632A (ja) 2018-03-29
CN107406520A (zh) 2017-11-28
KR20170128370A (ko) 2017-11-22
BR112017018076A2 (pt) 2018-04-10
US20180030157A1 (en) 2018-02-01
CN107406520B (zh) 2021-08-10
WO2016148975A1 (en) 2016-09-22
JP6749929B2 (ja) 2020-09-02

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