BR8004469A - Processo para a preparacao de derivados de celulose por reacao de celulose alcalina com reagentes de eterificacao - Google Patents
Processo para a preparacao de derivados de celulose por reacao de celulose alcalina com reagentes de eterificacaoInfo
- Publication number
- BR8004469A BR8004469A BR8004469A BR8004469A BR8004469A BR 8004469 A BR8004469 A BR 8004469A BR 8004469 A BR8004469 A BR 8004469A BR 8004469 A BR8004469 A BR 8004469A BR 8004469 A BR8004469 A BR 8004469A
- Authority
- BR
- Brazil
- Prior art keywords
- cellulose
- eterification
- reagents
- preparation
- reaction
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792929002 DE2929002A1 (de) | 1979-07-18 | 1979-07-18 | Verfahren zur herstellung von cellulosederivaten mittels besonders reaktiver alkalicellulose |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8004469A true BR8004469A (pt) | 1981-01-27 |
Family
ID=6076030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8004469A BR8004469A (pt) | 1979-07-18 | 1980-07-17 | Processo para a preparacao de derivados de celulose por reacao de celulose alcalina com reagentes de eterificacao |
Country Status (6)
Country | Link |
---|---|
US (1) | US4339573A (pt) |
EP (1) | EP0023292A1 (pt) |
JP (1) | JPS5616501A (pt) |
BR (1) | BR8004469A (pt) |
DE (1) | DE2929002A1 (pt) |
FI (1) | FI802056A (pt) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3005700A1 (de) * | 1980-02-15 | 1981-08-20 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur kontinuierlichen herstellung von cellusloseethern |
DE3147434A1 (de) * | 1981-11-30 | 1983-06-09 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von celluloseethern mit dimethoxyethan als dispergierhilfsmittel |
US4401813A (en) * | 1981-12-10 | 1983-08-30 | Nl Industries, Inc. | Process for preparing alkali metal salt of carboxymethyl cellulose |
USRE32976E (en) * | 1982-10-04 | 1989-07-04 | Daicel Chemical Industries, Ltd. | Sodium carboxymethylcellulose |
JPS6037121B2 (ja) * | 1982-10-04 | 1985-08-24 | ダイセル化学工業株式会社 | カルボキシメチルセルロ−スナトリウム塩 |
DE3306621A1 (de) * | 1983-02-25 | 1984-08-30 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von celluloseethern mit einem dimethoxyethan enthaltenden dispergierhilfsmittel |
SE466284B (sv) * | 1989-11-22 | 1992-01-27 | Berol Nobel Ab | Mikrobicid komposition innehaallande en laangkedjig alkylester och en nonjonisk vattenloeslig cellulosaeter |
US6686464B1 (en) * | 1999-04-26 | 2004-02-03 | Bki Holding Corporation | Cellulose ethers and method of preparing the same |
CN1239780C (zh) * | 1999-04-26 | 2006-02-01 | Bki控股公司 | 纤维素醚及其制备方法 |
JP2001302701A (ja) * | 2000-02-15 | 2001-10-31 | Shin Etsu Chem Co Ltd | アルカリセルロース及びセルロースエーテルの製造方法 |
BR0115388A (pt) | 2000-11-01 | 2005-01-04 | Bki Holding Corp | éteres de celulose e método de preparação dos mesmos |
JP5377816B2 (ja) | 2005-06-16 | 2013-12-25 | 信越化学工業株式会社 | セルロースエーテルの製造方法 |
JP5030569B2 (ja) * | 2005-12-27 | 2012-09-19 | 信越化学工業株式会社 | セルロースエーテルの製造方法 |
CA2655035C (en) * | 2006-06-14 | 2013-08-13 | Sappi Manufacturing (Pty) Ltd | Pulp reactivity enhancement |
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 |
JP4866970B1 (ja) * | 2011-03-31 | 2012-02-01 | 正造 太田 | 自動車走行時の車体後方の空気抵抗消滅方法及びこれに使用するタイヤホイール |
JP2024504828A (ja) | 2021-01-29 | 2024-02-01 | ニュートリション・アンド・バイオサイエンシーズ・ユーエスエー・ワン,エルエルシー | 改善された貯蔵安定性を有するカルボキシメチルセルロースの調製方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA496725A (en) | 1953-10-06 | Von Kohorn Henry | Method for ageing alkali cellulose | |
BE458917A (pt) * | ||||
BE458977A (pt) * | ||||
GB200816A (en) * | 1922-07-13 | 1924-11-10 | Leon Lilienfeld | Improvements in and relating to a process of preparing alkali celluloses, and in the preparation of cellulose ethers therefrom |
GB250617A (en) * | 1925-04-10 | 1927-05-05 | Soie De Chatillon | A process for the maturation of alkali cellulose intended for the preparation of artificial silk by the viscose method |
GB546647A (en) | 1941-01-22 | 1942-07-23 | Henry Dreyfus | Improvements in or relating to the production of alkali cellulose and cellulose derivatives |
US2296829A (en) * | 1941-03-22 | 1942-09-29 | Dow Chemical Co | Making alkali cellulose of low water content |
US2619483A (en) * | 1947-10-17 | 1952-11-25 | Celanese Corp | Production of alkali cellulose |
US2977355A (en) * | 1954-01-13 | 1961-03-28 | Celanese Corp | Alkali cellulose aging |
US3255071A (en) * | 1963-10-25 | 1966-06-07 | Theodor N Kleinert | Process for production of alkali cellulose in the absence of an aqueous liquid phase |
-
1979
- 1979-07-18 DE DE19792929002 patent/DE2929002A1/de not_active Withdrawn
-
1980
- 1980-06-27 FI FI802056A patent/FI802056A/fi not_active Application Discontinuation
- 1980-07-07 US US06/165,868 patent/US4339573A/en not_active Expired - Lifetime
- 1980-07-10 EP EP80103952A patent/EP0023292A1/de not_active Withdrawn
- 1980-07-17 BR BR8004469A patent/BR8004469A/pt unknown
- 1980-07-17 JP JP9694980A patent/JPS5616501A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0023292A1 (de) | 1981-02-04 |
FI802056A (fi) | 1981-01-19 |
JPS5616501A (en) | 1981-02-17 |
US4339573A (en) | 1982-07-13 |
DE2929002A1 (de) | 1981-02-12 |
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