FR2020529A1 - - Google Patents

Info

Publication number
FR2020529A1
FR2020529A1 FR6931091A FR6931091A FR2020529A1 FR 2020529 A1 FR2020529 A1 FR 2020529A1 FR 6931091 A FR6931091 A FR 6931091A FR 6931091 A FR6931091 A FR 6931091A FR 2020529 A1 FR2020529 A1 FR 2020529A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Pending
Application number
FR6931091A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Publication of FR2020529A1 publication Critical patent/FR2020529A1/fr
Pending legal-status Critical Current

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
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals 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
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
    • 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
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/12—Preparation of cellulose esters of organic acids of polybasic organic acids
FR6931091A 1968-09-12 1969-09-12 Pending FR2020529A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6594968 1968-09-12
JP6595068 1968-09-12
JP1815269 1969-03-10

Publications (1)

Publication Number Publication Date
FR2020529A1 true FR2020529A1 (fr) 1970-07-17

Family

ID=27282106

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6931091A Pending FR2020529A1 (fr) 1968-09-12 1969-09-12

Country Status (4)

Country Link
US (1) US3629237A (fr)
CH (1) CH523073A (fr)
FR (1) FR2020529A1 (fr)
GB (1) GB1268658A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130052A1 (fr) * 1971-03-19 1972-11-03 Shinetsu Chemical Co

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870702A (en) * 1971-03-19 1975-03-11 Shinetsu Chemical Co Cellulose ether compositions useful as enteric coatings
US3789117A (en) * 1971-07-19 1974-01-29 Freunt Ind Co Ltd Process for the preparation of enteric medicaments
JPS5518694B2 (fr) * 1973-04-02 1980-05-21
US4226981A (en) * 1977-09-28 1980-10-07 Shin-Etsu Chemical Co., Ltd. Ether-ester derivatives of cellulose and their applications
JPS5535031A (en) * 1978-09-04 1980-03-11 Shin Etsu Chem Co Ltd Enteric coating composition
US4518433A (en) * 1982-11-08 1985-05-21 Fmc Corporation Enteric coating for pharmaceutical dosage forms
GB2132887A (en) * 1982-11-15 1984-07-18 Procter & Gamble Enteric-coated anti-inflammatory compositions
SE457505B (sv) * 1984-01-10 1989-01-09 Lejus Medical Ab Laminatbelagd oral farmaceutisk komposition och foerfarande foer dess framstaellning
GB2285989A (en) * 1994-01-28 1995-08-02 Merck Frosst Canada Inc Aqueous formulations for enteric coatings
US5723151A (en) * 1995-11-06 1998-03-03 Eastman Chemical Company Cellulose acetate phthalate enteric coating compositions
KR100387126B1 (ko) * 2001-04-19 2003-06-12 삼성정밀화학 주식회사 히드록시프로필메틸 셀룰로오스 프탈레이트의 분리정제방법
KR100442112B1 (ko) * 2001-10-08 2004-07-30 삼성정밀화학 주식회사 히드록시프로필메틸 셀룰로오스 프탈레이트의 제조 방법
SE0103424D0 (sv) * 2001-10-15 2001-10-15 Astrazeneca Ab Pharmaceutical formulation
WO2014031446A1 (fr) * 2012-08-24 2014-02-27 Dow Global Technologies Llc Procédé de préparation d'un éther de cellulose estérifié en présence d'un carboxylate de métal alcalin et d'un acide carboxylique aliphatique
CN104231091B (zh) * 2014-09-29 2016-06-22 泸州北方化学工业有限公司 羟丙基甲基纤维素邻苯二甲酸酯的制备方法
MX355026B (es) 2014-10-31 2018-04-02 Dow Global Technologies Llc Proceso para preparar ester de eter de celulosa.
BR112017008431A2 (pt) * 2014-10-31 2018-01-23 Dow Global Technologies Llc processo para produzir um acetato succinato éter de celulose
US10196461B2 (en) 2014-10-31 2019-02-05 Dow Global Technologies Llc Efficient process for preparing an ester of a cellulose ether
KR20170076965A (ko) * 2015-12-24 2017-07-05 롯데정밀화학 주식회사 히드록시프로필메틸 셀룰로오스 프탈레이트 입자 및 그 제조방법
JP6548287B2 (ja) * 2016-06-23 2019-07-24 ダウ グローバル テクノロジーズ エルエルシー フタリル基を含むエステル化セルロースエーテル
JP7252882B2 (ja) 2019-11-01 2023-04-05 信越化学工業株式会社 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の製造方法
JP7273691B2 (ja) * 2019-11-01 2023-05-15 信越化学工業株式会社 ヒドロキシプロピルメチルセルロースフタレートの製造方法
JP7399061B2 (ja) * 2020-10-01 2023-12-15 信越化学工業株式会社 ヒドロキシプロピルメチルセルロースフタレートの製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130052A1 (fr) * 1971-03-19 1972-11-03 Shinetsu Chemical Co

Also Published As

Publication number Publication date
DE1946170A1 (de) 1970-03-19
DE1946170B2 (de) 1975-10-30
US3629237A (en) 1971-12-21
CH523073A (de) 1972-05-31
GB1268658A (en) 1972-03-29

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