ES8405814A1 - Un procedimiento para preparar carboximetil celulosa sodica soluble en agua - Google Patents

Un procedimiento para preparar carboximetil celulosa sodica soluble en agua

Info

Publication number
ES8405814A1
ES8405814A1 ES526131A ES526131A ES8405814A1 ES 8405814 A1 ES8405814 A1 ES 8405814A1 ES 526131 A ES526131 A ES 526131A ES 526131 A ES526131 A ES 526131A ES 8405814 A1 ES8405814 A1 ES 8405814A1
Authority
ES
Spain
Prior art keywords
cellulose
organic solvent
alkyl esters
etherifying
monochloroacetic acid
Prior art date
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.)
Expired
Application number
ES526131A
Other languages
English (en)
Other versions
ES526131A0 (es
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6174527&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8405814(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of ES526131A0 publication Critical patent/ES526131A0/es
Publication of ES8405814A1 publication Critical patent/ES8405814A1/es
Expired 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
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]

Abstract

PROCEDIMIENTO PARA PREPARAR CARBOXIMETIL CELULOSA SODICA SOLUBLE EN AGUA.COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PREPARA UNA DISPERSION ACUOSA ALCALINA QUE CONTIENE POR LO MENOS UN DISOLVENTE ORGANICO; SEGUNDA, LA CELULOSA SE ALCALINIZA EN LA DISPERSION ACUOSA ALCALINA PREPARADA; Y POR ULTIMO, LA CELULOSA DE METAL ALCALINO SE HACE REACCIONAR CON UN MONOCLOROACETATO DE ALQUILO COMO AGENTE ETERIFICANTE, EN PRESENCIA DE UN DISOLVENTE ORGANICO. COMO MONOCLOROACETATO DE ALQUILO SE PUEDE UTILIZAR MONOCLOROACETATO DE METILO, DE ETILO O DE ISOPROPILO.DE APLICACIONEN LA PRODUCCION DE DETERGENTES, EN LA INDUSTRIA TEXTIL Y EN LA INDUSTRIA PAPELERA.
ES526131A 1982-09-30 1983-09-29 Un procedimiento para preparar carboximetil celulosa sodica soluble en agua Expired ES8405814A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823236158 DE3236158A1 (de) 1982-09-30 1982-09-30 Verfahren zur veretherung von cellulose mit monochloressigsaeurealkylestern

Publications (2)

Publication Number Publication Date
ES526131A0 ES526131A0 (es) 1984-06-16
ES8405814A1 true ES8405814A1 (es) 1984-06-16

Family

ID=6174527

Family Applications (1)

Application Number Title Priority Date Filing Date
ES526131A Expired ES8405814A1 (es) 1982-09-30 1983-09-29 Un procedimiento para preparar carboximetil celulosa sodica soluble en agua

Country Status (8)

Country Link
US (1) US4526961A (es)
EP (1) EP0105231B1 (es)
JP (1) JPS5975903A (es)
AT (1) ATE26121T1 (es)
CA (1) CA1205466A (es)
DE (2) DE3236158A1 (es)
ES (1) ES8405814A1 (es)
FI (1) FI74026C (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6686464B1 (en) * 1999-04-26 2004-02-03 Bki Holding Corporation Cellulose ethers and method of preparing the same
CN1312184C (zh) 2000-11-01 2007-04-25 Bki控股公司 纤维素醚及其制备方法
US6881252B2 (en) 2003-09-23 2005-04-19 Corn Products International, Inc. Fiber-based product
JP5142563B2 (ja) * 2007-03-19 2013-02-13 第一工業製薬株式会社 耐剪断性カルボキシメチルセルロースおよびそれを配合した口腔用組成物
CN102822204B (zh) * 2010-03-30 2015-10-07 陶氏环球技术有限责任公司 高粘度羧甲基纤维素及其制备方法
CN102908650B (zh) * 2012-09-25 2015-06-17 北京维索科科技有限公司 可溶性止血材料生产工艺
CN102912618B (zh) * 2012-09-25 2014-10-22 北京维索科科技有限公司 可溶性止血棉生产系统
RU2526089C1 (ru) * 2013-07-04 2014-08-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) Реагент для обработки бурового раствора
JPWO2016031449A1 (ja) * 2014-08-28 2017-06-22 第一工業製薬株式会社 非水系電解液二次電池の電極用カルボキシメチルセルロース塩の製造方法、非水系電解液二次電池用電極、および非水系電解液二次電池
JP2019059856A (ja) * 2017-09-27 2019-04-18 第一工業製薬株式会社 カルボキシメチルセルロースまたはその塩の製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767170A (en) * 1951-08-29 1956-10-16 Hercules Powder Co Ltd Preparation of alkali cellulose
US3900463A (en) * 1968-12-14 1975-08-19 Dai Ichi Kogyo Seiyaku Co Ltd Process for preparing alkali carboxymethyl cellulose
GB1289548A (es) * 1969-12-18 1972-09-20
JPS5028981B1 (es) * 1970-04-02 1975-09-19
JPS5028981A (es) * 1973-07-13 1975-03-24
DE2358150C2 (de) * 1973-11-22 1982-03-18 Hoechst Ag, 6000 Frankfurt Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50% unlöslichen Celluloseethern
US4063018A (en) * 1975-04-07 1977-12-13 Daicel Ltd. Process for preparing alkali metal salt of carboxymethyl cellulose ether
DE2556754C3 (de) * 1975-12-17 1982-04-29 Hoechst Ag, 6000 Frankfurt Verfahren zur Modifizierung von wasserlöslichen Hydroxyalkylcelluloseethern zu völlig oder teilweise wasserunlöslichen Produkten und Verfahren zur Herstellung von wäßrigen Lösungen der modifizierten Produkte
JPS6035361B2 (ja) * 1981-04-03 1985-08-14 ダイセル化学工業株式会社 耐塩水性に優れたカルボキシメチルセルロ−ズの製造方法
FI71750C (fi) * 1981-09-10 1987-02-09 Daicel Chem Process foer tillverkning av ett alkalisalt av karboximetylcellulosaeter.
US4401813A (en) * 1981-12-10 1983-08-30 Nl Industries, Inc. Process for preparing alkali metal salt of carboxymethyl cellulose

Also Published As

Publication number Publication date
FI74026C (fi) 1987-12-10
US4526961A (en) 1985-07-02
EP0105231A2 (de) 1984-04-11
ES526131A0 (es) 1984-06-16
CA1205466A (en) 1986-06-03
FI74026B (fi) 1987-08-31
JPS5975903A (ja) 1984-04-28
ATE26121T1 (de) 1987-04-15
DE3370486D1 (en) 1987-04-30
EP0105231B1 (de) 1987-03-25
FI833497A0 (fi) 1983-09-28
EP0105231A3 (en) 1985-07-17
DE3236158A1 (de) 1984-04-05
FI833497A (fi) 1984-03-31

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