IT1050310B - Metodo per la preparazione di eteri di cellulosa a basso grado di sostituzione - Google Patents

Metodo per la preparazione di eteri di cellulosa a basso grado di sostituzione

Info

Publication number
IT1050310B
IT1050310B IT29616/75A IT2961675A IT1050310B IT 1050310 B IT1050310 B IT 1050310B IT 29616/75 A IT29616/75 A IT 29616/75A IT 2961675 A IT2961675 A IT 2961675A IT 1050310 B IT1050310 B IT 1050310B
Authority
IT
Italy
Prior art keywords
preparation
cellulose ether
low degree
degree cellulose
ether
Prior art date
Application number
IT29616/75A
Other languages
English (en)
Original Assignee
Shinetsu Chemical Co
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 Shinetsu Chemical Co filed Critical Shinetsu Chemical Co
Application granted granted Critical
Publication of IT1050310B publication Critical patent/IT1050310B/it

Links

Classifications

    • 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
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054—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
    • 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
IT29616/75A 1974-11-28 1975-11-25 Metodo per la preparazione di eteri di cellulosa a basso grado di sostituzione IT1050310B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49138141A JPS5163927A (en) 1974-11-28 1974-11-28 Ketsugoseiryokonajozaihokaizaino seizohoho

Publications (1)

Publication Number Publication Date
IT1050310B true IT1050310B (it) 1981-03-10

Family

ID=15214950

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29616/75A IT1050310B (it) 1974-11-28 1975-11-25 Metodo per la preparazione di eteri di cellulosa a basso grado di sostituzione

Country Status (11)

Country Link
US (1) US4091205A (it)
JP (1) JPS5163927A (it)
BE (1) BE836021A (it)
CA (1) CA1042878A (it)
CH (1) CH619719A5 (it)
DE (1) DE2553239C2 (it)
FR (1) FR2304353A1 (it)
GB (1) GB1479557A (it)
IT (1) IT1050310B (it)
NL (1) NL174554C (it)
SE (1) SE430165B (it)

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JP2000302802A (ja) * 1999-04-21 2000-10-31 Shin Etsu Chem Co Ltd 低置換度ヒドロキシプロピルセルロース粒子の形成方法
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JP2001031701A (ja) * 1999-05-18 2001-02-06 Shin Etsu Chem Co Ltd 低置換度ヒドロキシプロピルセルロース
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JP3552160B2 (ja) 2000-01-14 2004-08-11 信越化学工業株式会社 低置換度ヒドロキシプロピルセルロース粒子の形成方法
JP3576063B2 (ja) * 2000-02-22 2004-10-13 株式会社ホギメディカル 凝固蛋白質を含む可溶性創傷治癒止血セルロース繊維とその製造方法
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JP2003252749A (ja) * 2002-03-04 2003-09-10 Shin Etsu Chem Co Ltd 外用基剤
KR100525252B1 (ko) * 2003-12-16 2005-10-31 삼성정밀화학 주식회사 미세화된 셀룰로오스에테르의 제조방법
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CN101243131B (zh) * 2005-08-16 2012-03-21 陶氏环球技术公司 制备具有更高粘度和细度的纤维素醚产品的方法
JP4524254B2 (ja) * 2006-01-27 2010-08-11 信越化学工業株式会社 低置換度ヒドロキシプロピルセルロースを含む化粧料
JP2007320886A (ja) * 2006-05-31 2007-12-13 Isp Japan Kk 含水ゲル状シート剤及びその製造方法
JP5089287B2 (ja) * 2006-08-08 2012-12-05 信越化学工業株式会社 低置換度ヒドロキシプロピルセルロース粉末の製造方法
CN101121755B (zh) * 2006-08-08 2012-04-11 信越化学工业株式会社 低取代羟丙基纤维素粉末及其制备方法
US8343548B2 (en) 2006-08-08 2013-01-01 Shin-Etsu Chemical Co., Ltd. Solid dosage form comprising solid dispersion
US8343547B2 (en) * 2006-08-08 2013-01-01 Shin-Etsu Chemical Co., Ltd. Solid dosage form comprising solid dispersion
US8519120B2 (en) 2006-08-08 2013-08-27 Shin-Etsu Chemical Co., Ltd. Methods for producing a low-substituted hydroxypropylcellulose powder
WO2008081891A1 (ja) 2006-12-28 2008-07-10 Takeda Pharmaceutical Company Limited 口腔内崩壊性固形製剤
EP3031451B1 (en) 2009-01-26 2018-03-07 Shin-Etsu Chemical Co., Ltd Wet granulation tableting method using aqueous dispersion of low-substituted hydroxypropyl cellulose
JP5324302B2 (ja) * 2009-04-22 2013-10-23 信越化学工業株式会社 高成型性、高流動性低置換度ヒドロキシプロピルセルロースおよびそれを含む固形製剤
US8260695B1 (en) * 2010-07-14 2012-09-04 Steven Rosenberg Secondary power meter for quarter-cycle power measurement and invoicing method
WO2012138533A1 (en) * 2011-04-06 2012-10-11 Dow Global Technologies Llc Process for producing cellulose derivatives of high bulk density, good flowability and improved dispersibility in cold water
KR102171570B1 (ko) 2012-09-25 2020-10-29 다우 글로벌 테크놀로지스 엘엘씨 높은 벌크 밀도, 우수한 유동성 및/또는 우수한 냉수 분산성 및 약한 용액 색을 갖는 셀룰로스 유도체의 제조 방법
EP2733154B1 (en) 2012-11-16 2015-06-17 Shin-Etsu Chemical Co., Ltd. Method for producing purified low-substituted hydroxypropyl cellulose
CA2913106A1 (en) 2013-05-21 2014-11-27 Takeda Pharmaceutical Company Limited Orally disintegrable tablet
EP2998340B1 (en) * 2014-09-22 2019-07-17 Shin-Etsu Chemical Co., Ltd. Method for continuously producing cellulose ether
TWI767923B (zh) * 2016-07-27 2022-06-21 日商澤井製藥股份有限公司 口腔內崩解錠添加用組成物及其製造方法以及口腔內崩解錠
KR102498064B1 (ko) 2016-10-07 2023-02-10 신에쓰 가가꾸 고교 가부시끼가이샤 저치환도 히드록시프로필 셀룰로오스 및 그의 제조 방법, 및 고형 제제
KR102469464B1 (ko) 2016-10-07 2022-11-22 신에쓰 가가꾸 고교 가부시끼가이샤 저치환도 히드록시프로필 셀룰로오스 및 그의 제조 방법, 및 고형 제제
JP2023105346A (ja) 2022-01-19 2023-07-31 信越化学工業株式会社 パーソナルケア組成物及びその使用方法

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US1448091A (en) * 1922-02-02 1923-03-13 Eastman Kodak Co Purification of cellulose ether
US1510735A (en) * 1922-10-31 1924-10-07 Eastman Kodak Co Cellulose-ether purification
US3251824A (en) * 1961-08-22 1966-05-17 Fmc Corp Method of preparing stable aqueous dispersion-forming cellulosic aggregates
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JPS4819233B1 (it) * 1970-04-27 1973-06-12
JPS4917565B1 (it) * 1970-12-29 1974-05-01

Also Published As

Publication number Publication date
BE836021A (fr) 1976-03-16
DE2553239C2 (de) 1983-01-27
SE430165B (sv) 1983-10-24
NL7513391A (nl) 1976-06-01
JPS5753100B2 (it) 1982-11-11
SE7512627L (sv) 1976-05-29
AU8691775A (en) 1977-06-02
NL174554C (nl) 1984-07-02
JPS5163927A (en) 1976-06-02
GB1479557A (en) 1977-07-13
FR2304353A1 (fr) 1976-10-15
NL174554B (nl) 1984-02-01
CH619719A5 (it) 1980-10-15
CA1042878A (en) 1978-11-21
US4091205A (en) 1978-05-23
DE2553239A1 (de) 1976-08-12
FR2304353B1 (it) 1979-06-15

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Effective date: 19931129