FI840746L - Foerfarande foer framstaellning av cellulosaetrar med ett dimetoxietan innehaollande dispergeringshjaelpmedel. - Google Patents

Foerfarande foer framstaellning av cellulosaetrar med ett dimetoxietan innehaollande dispergeringshjaelpmedel. Download PDF

Info

Publication number: FI840746L
Authority: FI; Finland
Prior art keywords: dispergeringshjaelpmedel; dimetoxietan; cellulosaetrar; innehaollande; foerfarande foer
Prior art date: 1983-02-25

Application number

FI840746A

Other languages

English (en)

Other versions

FI73443C (fi

FI73443B (fi

FI840746A0 (fi

Inventor

Wolfgang Kornrumpf

Josef Hilbig

Eberhard Perplies

Utz-Hellmuth Felcht

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.)

1983-02-25

Filing date

1984-02-23

Publication date

1984-08-26

1984-02-23 Application filed by Hoechst Ag filed Critical Hoechst Ag

1984-02-23 Publication of FI840746A0 publication Critical patent/FI840746A0/fi

1984-08-26 Publication of FI840746L publication Critical patent/FI840746L/fi

1987-06-30 Application granted granted Critical

1987-06-30 Publication of FI73443B publication Critical patent/FI73443B/fi

1987-10-09 Publication of FI73443C publication Critical patent/FI73443C/fi

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

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Biochemistry (AREA)
Materials Engineering (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

FI840746A 1983-02-25 1984-02-23 Foerfarande foer framstaellning av cellulosaetrar med ett dimetoxietan innehaollande dispergeringshjaelpmedel. FI73443C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19833306621 DE3306621A1 (de)	1983-02-25	1983-02-25	Verfahren zur herstellung von celluloseethern mit einem dimethoxyethan enthaltenden dispergierhilfsmittel
DE3306621		1983-02-25

Publications (4)

Publication Number	Publication Date
FI840746A0 FI840746A0 (fi)	1984-02-23
FI840746L true FI840746L (fi)	1984-08-26
FI73443B FI73443B (fi)	1987-06-30
FI73443C FI73443C (fi)	1987-10-09

Family

ID=6191803

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI840746A FI73443C (fi)	1983-02-25	1984-02-23	Foerfarande foer framstaellning av cellulosaetrar med ett dimetoxietan innehaollande dispergeringshjaelpmedel.

Country Status (10)

Country	Link
US (1)	US4501887A (fi)
EP (1)	EP0117490B1 (fi)
JP (1)	JPH0647602B2 (fi)
AT (1)	ATE25260T1 (fi)
BR (1)	BR8400852A (fi)
CA (1)	CA1215358A (fi)
DE (2)	DE3306621A1 (fi)
ES (1)	ES8504214A1 (fi)
FI (1)	FI73443C (fi)
ZA (1)	ZA841367B (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3417952A1 (de) *	1984-05-15	1985-11-21	Hoechst Ag, 6230 Frankfurt	Verfahren zur herstellung von wasserloeslichen cellulosemischethern
US4845206A (en) *	1987-05-21	1989-07-04	The Dow Chemical Company	Production of cellulose ethers using a premix of alkali and etherifying agent
US4826619A (en) *	1987-12-03	1989-05-02	A. E. Staley Manufacturing Company	Starch slurries with concentrated aqueous alkaline solutions
DE4037605A1 (de) *	1990-11-27	1992-06-04	Wolff Walsrode Ag	Wasserloesliche hydroxypropyl-sulfoethyl-cellulosederivate (hpsec) mit niedrigem substitutionsgrad und verfahren zu ihrer herstellung
DE4113892A1 (de) *	1991-04-27	1992-10-29	Wolff Walsrode Ag	Wasserloesliche sulfoethylcelluloseether mit sehr guter loesungsqualitaet und verfahren zu ihrer herstellung
DE10018155A1 (de) *	2000-04-12	2001-10-25	Clariant Gmbh	Verfahren zur Herstellung von gut benetzbaren, wasserlöslichen, pulverförmigen, mindestens alkylierten, nicht-ionischen Celluloseethern
SE520715C2 (sv) *	2001-12-03	2003-08-12	Akzo Nobel Nv	Förfarande för framställning av metylcellulosaetrar
ITVA20020051A1 (it) *	2002-10-14	2004-04-15	Lamberti Spa	Modificatore di reologia per prodotti destinati all'edilizia.
JP4885213B2 (ja) *	2005-05-23	2012-02-29	コーニンクレッカフィリップスエレクトロニクスエヌヴィ	高輝度放電ランプ
CN101583628B (zh) *	2007-01-22	2014-09-24	阿克佐诺贝尔股份有限公司	制备纤维素醚的方法
JP2010031165A (ja) *	2008-07-30	2010-02-12	Sanyo Chem Ind Ltd	アルキルエーテル化カルボキシアルキルセルロース

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1980988A (en) *	1933-05-03	1934-11-20	Du Pont	Solvents for etherification of cellulose
US2553695A (en) *	1947-10-17	1951-05-22	Celanese Corp	Manufacture of cellulose ethers
US2618632A (en) *	1949-04-05	1952-11-18	Hercules Powder Co Ltd	Mixed cellulose ether and preparation thereof
US2682535A (en) *	1950-11-28	1954-06-29	Union Carbide & Carbon Corp	Hydroxyalkylation of polysaccharides
US2744894A (en) *	1952-09-08	1956-05-08	Union Carbide & Carbon Corp	Hydroxyalkylation of polysaccharides
US3351583A (en) *	1964-07-06	1967-11-07	Hercules Inc	Preparation of hydroxypropyl cellulose
US3284441A (en) *	1965-07-26	1966-11-08	Hercules Inc	Process of preparing carboxymethyl-cellulose
DE2644678A1 (de) *	1976-10-02	1978-04-06	Dynamit Nobel Ag	Verfahren zur herstellung funktionalisierter cellulosen
US4129722A (en) *	1977-12-15	1978-12-12	National Starch And Chemical Corporation	Process for the preparation of high D. S. polysaccharides
US4278790A (en) *	1978-07-31	1981-07-14	Hopkins Agricultural Chemical Co.	Novel cellulose solutions
DE2929002A1 (de) *	1979-07-18	1981-02-12	Henkel Kgaa	Verfahren zur herstellung von cellulosederivaten mittels besonders reaktiver alkalicellulose
IE49324B1 (en) *	1979-12-19	1985-09-18	Euro Celtique Sa	Controlled release compositions
DE3147434A1 (de) *	1981-11-30	1983-06-09	Hoechst Ag, 6230 Frankfurt	Verfahren zur herstellung von celluloseethern mit dimethoxyethan als dispergierhilfsmittel
US4419510A (en) *	1982-07-30	1983-12-06	The Dow Chemical Company	Method for controlling cellulose etherification reaction

1983
- 1983-02-25 DE DE19833306621 patent/DE3306621A1/de not_active Withdrawn
1984
- 1984-02-16 DE DE8484101609T patent/DE3462262D1/de not_active Expired
- 1984-02-16 EP EP84101609A patent/EP0117490B1/de not_active Expired
- 1984-02-16 AT AT84101609T patent/ATE25260T1/de not_active IP Right Cessation
- 1984-02-17 US US06/581,233 patent/US4501887A/en not_active Expired - Lifetime
- 1984-02-20 CA CA000447812A patent/CA1215358A/en not_active Expired
- 1984-02-22 JP JP59030492A patent/JPH0647602B2/ja not_active Expired - Fee Related
- 1984-02-23 FI FI840746A patent/FI73443C/fi not_active IP Right Cessation
- 1984-02-23 BR BR8400852A patent/BR8400852A/pt unknown
- 1984-02-24 ZA ZA841367A patent/ZA841367B/xx unknown
- 1984-02-24 ES ES530028A patent/ES8504214A1/es not_active Expired

Also Published As

Publication number	Publication date
US4501887A (en)	1985-02-26
CA1215358A (en)	1986-12-16
DE3306621A1 (de)	1984-08-30
FI73443C (fi)	1987-10-09
EP0117490B1 (de)	1987-01-28
FI73443B (fi)	1987-06-30
BR8400852A (pt)	1984-10-02
ATE25260T1 (de)	1987-02-15
ES530028A0 (es)	1984-11-01
ZA841367B (en)	1984-10-31
FI840746A0 (fi)	1984-02-23
JPH0647602B2 (ja)	1994-06-22
JPS59159801A (ja)	1984-09-10
ES8504214A1 (es)	1984-11-01
EP0117490A3 (en)	1985-10-02
DE3462262D1 (en)	1987-03-05
EP0117490A2 (de)	1984-09-05

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Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: HOECHST AKTIENGESELLSCHAFT