BR112017008389A2 - processo para preparar um éster de um éter de celulose - Google Patents

processo para preparar um éster de um éter de celulose

Info

Publication number
BR112017008389A2
BR112017008389A2 BR112017008389A BR112017008389A BR112017008389A2 BR 112017008389 A2 BR112017008389 A2 BR 112017008389A2 BR 112017008389 A BR112017008389 A BR 112017008389A BR 112017008389 A BR112017008389 A BR 112017008389A BR 112017008389 A2 BR112017008389 A2 BR 112017008389A2
Authority
BR
Brazil
Prior art keywords
cellulose ether
acid anhydride
ester
preparing
aliphatic monocarboxylic
Prior art date
Application number
BR112017008389A
Other languages
English (en)
Inventor
Sprehe Matthias
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 BR112017008389A2 publication Critical patent/BR112017008389A2/pt

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
    • 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
    • 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

Abstract

um processo para produzir um éter de celulose esterificado compreende a etapa de reagir um éter de celulose com um anidrido de ácido monocarboxílico alifático e/ou um anidrido de ácido dicarboxílico e com um agente de despolimerização, em que o éter de celulose tem uma viscosidade inicial de pelo menos 500 mpa.s, medida como uma solução a 2% em peso em água a 20°c e a reação do éter de celulose com o anidrido de ácido monocarboxílico alifático e/ou o anidrido de ácido dicarboxílico e com o agente de despolimerização é conduzida simultaneamente ou em sequência em um dispositivo de reação.
BR112017008389A 2014-10-31 2015-10-21 processo para preparar um éster de um éter de celulose BR112017008389A2 (pt)

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 (1)

Publication Number Publication Date
BR112017008389A2 true BR112017008389A2 (pt) 2018-02-20

Family

ID=54478236

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017008389A BR112017008389A2 (pt) 2014-10-31 2015-10-21 processo para preparar um éster de um éter de celulose

Country Status (8)

Country Link
US (1) US20170335019A1 (pt)
EP (1) EP3212674B1 (pt)
JP (1) JP2017533324A (pt)
KR (1) KR101839295B1 (pt)
CN (1) CN107074980A (pt)
BR (1) BR112017008389A2 (pt)
MX (1) MX355026B (pt)
WO (1) WO2016069340A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3212675B1 (en) * 2014-10-31 2018-08-22 Dow Global Technologies Llc Efficient process for preparing an ester of a cellulose ether
WO2016069338A1 (en) * 2014-10-31 2016-05-06 Dow Global Technologies Llc Process for producing a cellulose ether acetate succinate
US11310008B2 (en) 2017-10-23 2022-04-19 Kyocera Corporation Data transmission with multiple numerologies for multiple devices with common geographical location dependent control information

Family Cites Families (24)

* Cited by examiner, † Cited by third party
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
EP1753402B1 (en) 2004-05-28 2008-10-01 Pfizer Products Incorporated Pharmaceutical compositions with enhanced performance comprising a hpmca polymer
EP2209811B1 (en) * 2007-11-09 2019-03-06 Union Carbide Chemicals & Plastics Technology LLC Method for preparing very low viscosity cellulose ether and product
BR112012031667A2 (pt) * 2010-06-14 2016-11-08 Dow Global Technologies Llc composição
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
US20150203595A1 (en) * 2012-08-24 2015-07-23 Dow Global Technologies Llc Process for preparing an ester of a cellulose ether in the presence of an alkali metal carboxylate
US9340624B2 (en) * 2012-09-25 2016-05-17 Dow Global Technologies Llc Process for producing cellulose derivatives of high bulk density, good flowability and/or dispersibility in cold water as well as low solution color
BR112015014065A2 (pt) * 2013-03-07 2017-07-11 Dow Global Technologies Llc éter de celulose esterificado, composição, dispersão sólida, forma de dosagem e invólucro de cápsula
JP6073526B2 (ja) * 2013-09-23 2017-02-01 ダウ グローバル テクノロジーズ エルエルシー エステル化セルロースエーテルを反応生成物混合物から回収するためのプロセス
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
EP3212675B1 (en) * 2014-10-31 2018-08-22 Dow Global Technologies Llc Efficient process for preparing an ester of a cellulose ether
WO2016069338A1 (en) * 2014-10-31 2016-05-06 Dow Global Technologies Llc Process for producing a cellulose ether acetate succinate

Also Published As

Publication number Publication date
MX2017005061A (es) 2017-07-05
EP3212674A1 (en) 2017-09-06
WO2016069340A1 (en) 2016-05-06
CN107074980A (zh) 2017-08-18
KR20170060157A (ko) 2017-05-31
EP3212674B1 (en) 2018-08-22
KR101839295B1 (ko) 2018-04-27
US20170335019A1 (en) 2017-11-23
MX355026B (es) 2018-04-02
JP2017533324A (ja) 2017-11-09

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]