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
US10888525B2 (en) 2016-11-02 2021-01-12 Shin-Etsu Chemical Co., Ltd. Hypromellose acetate succinate and method for producing the same
EP3596132B1 (en) * 2017-03-17 2021-05-05 Nutrition & Biosciences USA 1, LLC Process for recovering an esterified cellulose ether from a reaction product mixture

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
EP1753402B1 (en) 2004-05-28 2008-10-01 Pfizer Products Incorporated Pharmaceutical compositions with enhanced performance comprising a hpmca polymer
JP2015512456A (ja) 2012-03-27 2015-04-27 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の製造方法
KR101512478B1 (ko) * 2012-06-25 2015-04-16 김창호 전원 어댑터를 이용하는 전자제품의 대기전력 차단 장치
EP2888293B1 (en) * 2012-08-24 2019-05-08 Dow Global Technologies LLC Novel hydroxyalkyl methyl cellulose acetate succinates
KR102108813B1 (ko) * 2012-08-24 2020-05-12 다우 글로벌 테크놀로지스 엘엘씨 지방족 카복실산의 존재하의 셀룰로스 에테르의 에스테르의 제조 방법
US20150202301A1 (en) * 2012-08-24 2015-07-23 Dow Global Technologies Llc Novel esterified cellulose ethers of high molecular weight and homogeneity
BR112015015846A2 (pt) * 2013-03-07 2017-07-11 Dow Global Technologies Llc éter de celulose esterificado, composição, dispersão sólida, forma de dosagem, invólucro de cápsula e processo para produzir um éter de celulose esterificado
CN105007903B (zh) * 2013-03-07 2020-07-17 陶氏环球技术有限责任公司 具有极高分子量的酯化纤维素醚
KR102110119B1 (ko) * 2013-03-07 2020-05-14 다우 글로벌 테크놀로지스 엘엘씨 저점도 및 고분자량의 신규한 에스테르화된 셀룰로스 에테르
WO2015108770A1 (en) * 2014-01-16 2015-07-23 Dow Global Technologies Llc Recovery of additive manufacturing support materials
BR112016018177A2 (pt) * 2014-02-20 2017-08-08 Dow Global Technologies Llc Novos éteres de celulose esterificados de alto peso molecular e homogeneidade
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
KR20170128370A (ko) 2017-11-22
US20180030157A1 (en) 2018-02-01
EP3270969B1 (en) 2019-01-23
WO2016148975A1 (en) 2016-09-22
CN107406520A (zh) 2017-11-28
US20220056157A1 (en) 2022-02-24
CN107406520B (zh) 2021-08-10
EP3270969A1 (en) 2018-01-24
JP2018508632A (ja) 2018-03-29
JP6749929B2 (ja) 2020-09-02
BR112017018076A2 (pt) 2018-04-10

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