BR112017018076A2 - um processo para fracionar um éter esterificado de celulose - Google Patents

um processo para fracionar um éter esterificado de celulose

Info

Publication number
BR112017018076A2
BR112017018076A2 BR112017018076A BR112017018076A BR112017018076A2 BR 112017018076 A2 BR112017018076 A2 BR 112017018076A2 BR 112017018076 A BR112017018076 A BR 112017018076A BR 112017018076 A BR112017018076 A BR 112017018076A BR 112017018076 A2 BR112017018076 A2 BR 112017018076A2
Authority
BR
Brazil
Prior art keywords
cellulose ether
esterified cellulose
fractionating
aqueous liquid
groups
Prior art date
Application number
BR112017018076A
Other languages
English (en)
Inventor
Knarr Matthias
Sprehe Matthias
Brackhagen Meinolf
Petermann Oliver
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 BR112017018076A2 publication Critical patent/BR112017018076A2/pt

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

um processo para fracionamento de um éter de celulose esterificado compreendendo grupos de fórmula ? c(o) ? r ? cooh, em que r é um grupo hidrocarboneto divalente compreende as etapas de a) misturar o éter de celulose esterificado compreendendo grupos de fórmula ? c(o) ? r ? cooh com um líquido aquoso e ajustar a temperatura da mistura resultante para menos de 10°c para dissolver uma porção do éter de celulose esterificado no líquido aquoso, b) separar a porção não dissolvida do éter de celulose esterificado do restante da mistura e c) recuperar ou descartar o éter de celulose esterificado que está dissolvido no líquido aquoso.
BR112017018076A 2015-03-16 2016-03-08 um processo para fracionar um éter esterificado de celulose BR112017018076A2 (pt)

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
BR112017018076A2 true BR112017018076A2 (pt) 2018-04-10

Family

ID=55590147

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017018076A BR112017018076A2 (pt) 2015-03-16 2016-03-08 um processo para fracionar um éter esterificado de celulose

Country Status (8)

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

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
WO2018170062A1 (en) * 2017-03-17 2018-09-20 Dow Global Technologies 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
US8207232B2 (en) 2004-05-28 2012-06-26 Bend Research, Inc. Pharmaceutical compositions with enhanced performance
WO2013148154A1 (en) 2012-03-27 2013-10-03 Dow Global Technologies Llc A process of preparing an ester of a cellulose ether
WO2014003419A1 (ko) * 2012-06-25 2014-01-03 Kim Chang-Ho 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
US20150218197A1 (en) * 2012-08-24 2015-08-06 Dow Global Technologies Llc Process for preparing an ester of a cellulose ether in the presence of an aliphatic carboxylic acid
WO2014031419A1 (en) * 2012-08-24 2014-02-27 Dow Global Technologies Llc Novel esterified cellulose ethers of high molecular weight and homogeneity
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
EP2964679B1 (en) * 2013-03-07 2018-04-04 Dow Global Technologies LLC Novel esterified cellulose ethers of low viscosity and high molecular weight
EP2964203B1 (en) * 2013-03-07 2019-04-03 Dow Global Technologies LLC Novel esterified cellulose ethers of very high molecular weight
KR102348393B1 (ko) * 2014-01-16 2022-01-11 다우 글로벌 테크놀로지스 엘엘씨 적층 제조용 지지 물질의 회수
WO2015126576A1 (en) * 2014-02-20 2015-08-27 Dow Global Technologies Llc Novel 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
US20180030157A1 (en) 2018-02-01
MX2017011092A (es) 2017-11-10
CN107406520B (zh) 2021-08-10
EP3270969B1 (en) 2019-01-23
JP6749929B2 (ja) 2020-09-02
JP2018508632A (ja) 2018-03-29
KR20170128370A (ko) 2017-11-22
WO2016148975A1 (en) 2016-09-22
EP3270969A1 (en) 2018-01-24
US20220056157A1 (en) 2022-02-24
CN107406520A (zh) 2017-11-28

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Legal Events

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B07D Technical examination (opinion) related to article 229 of industrial property law [chapter 7.4 patent gazette]

Free format text: DE ACORDO COM O ARTIGO 229-C DA LEI NO 10196/2001, QUE MODIFICOU A LEI NO 9279/96, A CONCESSAO DA PATENTE ESTA CONDICIONADA A ANUENCIA PREVIA DA ANVISA. CONSIDERANDO A APROVACAO DOS TERMOS DO PARECER NO 337/PGF/EA/2010, BEM COMO A PORTARIA INTERMINISTERIAL NO 1065 DE 24/05/2012, ENCAMINHA-SE O PRESENTE PEDIDO PARA AS PROVIDENCIAS CABIVEIS.

B07E Notification of approval relating to section 229 industrial property law [chapter 7.5 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements